Re: [Tutor] How install Pyramid on a Windows 7 computer?
Step 1) install Ubuntu OK sorry couldn't resist. This should help. http://docs.pylonsproject.org/projects/pyramid/en/latest/narr/install.html#installing-pyramid-on-a-windows-system Vince On Thu, May 31, 2012 at 10:20 AM, Tamar Osher emeraldoff...@hotmail.comwrote: Months ago, I learned Python version 3. I have read a few books, and want to learn how to use Python for the web. Pyramid is a Python web framework that is ready for Python version 3, but I don't know how to install it on my Windows 7 computer. Online, there are no Pyramid installation instructions that discuss how to install Pyramid on a Windows 7 computer. Can someone please help me? from Tamar Osher, emeraldoff...@hotmail.com ** * * * http://www.emeraldvitamins.net/* ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Datetime Integers
This should do what you want. import time timestring = '2010-10-10 01:10:00' time_format = '%Y-%m-%d %H:%M:%S' timestruct = time.strptime(timestring, time_format) print [x for x in timestruct] For complex date parsing I would recommend checking out the dateutil.parser http://labix.org/python-dateutil On Mon, May 21, 2012 at 9:47 AM, Jeremy Traurig jeremy.trau...@gmail.comwrote: Hello, Is there a module available for python to convert datetime into an array of integers. For example, I have date where the first column is a datetime string (i.e. '2010-10-10 01:10:00') and I would like to convert that into an array with 5 columns corresponding to the integer values of Year,Month,Day,Hour,Minute. There is a function in Matlab that performs called datevec() that performs this operation. I find it much easier to index datetime or perform calculations on other data when date and time are integers. For example, i generally need to calculate averages, std, etc based on specific months, years, days, and hours. Those calculations are extremely simple when I can index an array of datetime integers. If there is no module to convert datetime to an array of integers, does anyone have an example of how i might index datetime using python datetime or numpy datetime64? In each case, I would need an array of datetime the same dimension as my data array. thanks -- jeremy ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor -- Vince Spicer ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Python Job Scheduling package
You could take a peak at these. Both work without external dependencies http://packages.python.org/APScheduler/#features http://pypi.python.org/pypi/TGScheduler/1.6.2 VInce On Thu, Oct 13, 2011 at 3:53 AM, harish bansal harishbansal...@gmail.com wrote: Has anyone seen a python job scheduling framework that could provide the following features Add/remove job from the queue View job list check job status Run concurrent jobs. I am looking for something similar to coalition(http://code.google.com/p/coalition/) -- Harry ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor -- Vince Spicer ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Accessing a secured webpage
You may want to look at httplib2
http://code.google.com/p/httplib2/
This great module makes auth very simple
Vince
On Fri, Jan 28, 2011 at 3:54 PM, Karim karim.liat...@free.fr wrote:
Hello,
I want to create a client to access a webpage. But when I access it
interactively there is a dialog box
which ask for login and password.
I want to access it in batch via python but I could only found a basic
example:
#!/bin/env python# -*- coding: utf-8 -*-
import urllib2
reponse = urllib2.urlopen('http://www.kernel.org/')
xhtmldata = reponse.read()for num,ligne in enumerate(xhtmldata.splitlines()) :
print %04d - %s%(num,ligne)
I want to provide login and password via python code. The web adress is
like http://website.com:8081/ddts/ddts_main.
If you have link it is welcome!
Regards
Karim
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Developer
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Re: [Tutor] Help listing directory timestamps and deleting directories
On Mon, Jan 24, 2011 at 11:25 AM, bsd...@gmail.com bsd...@gmail.com wrote: Hi, hoping for some help here. I've been trying to write a python script (complete newb) and have spent several days trying to get this right with no success. I am trying to list timestamps in a directory and if they are older than x amount of days delete the directories. It seems that in my for loop it is only evaluating the last timestamp of the last directory and using that timestamp to make the deletion decision. I realize that this script isn't going to delete the directories with evaluate as true but I haven't been able to get that far yet... ###start script## ###Modules### import os import time ###Global Variables### curr_t = time.time() days = 2629743 #2629743 is 30 days in epoch time. directory=os.path.join(/home, userid, python) for r,d,f in os.walk(directory): for dir in d: timestamp = os.path.getmtime(os.path.join(r,dir)) ## It seems that the below if statement is only comparing the timestamp of the last directory that this variable lists. print timestamp if curr_t - days timestamp: I am expecting this statement to compare each timestamp of the directory variable and print out if it should be deleted or not. print Your file will be deleted else: print File will NOT be deleted... ###end of script# Thank you for your time! ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor First off, I would recommend using dates and not times, this can help make things clearer when dealing with dates, also the dateutil module can make date math a lot simpler (easy_install dateutil) from datetime import datetime from dateutil.relativedelta import relativedelta remove_after = datetime.now() - relativedelta(days=31) # exactly 1 month prior to today check_dir = /path/to/whatever for r,d,f in os.walk(check_dir): for dir in d: loc = os.path.join(r,dir) last_modified = datetime.fromtimestamp(os.path.getmtime(loc)) if last_modifed remove_after: print delete old directory, loc else: print keep recently modified, loc Hope this helps, Vince Spicer Developer ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Odd result from function call
On Fri, Jan 7, 2011 at 11:38 AM, Ben Ganzfried ben.ganzfr...@gmail.comwrote: When I call one of my functions from the shell (ie compare(10, 5)) it produces the correct output. However, when I run the program after calling the method later in the script, the result is bizarre. I'm curious why the wrong result is printed. Here is an example: def compare(x,y): if x y: print (x, is less than , y) print(x is , x, y is , y) elif x y: print(x, is greater than , y) else: print(x, and , y, are equal.) x = input(First x is: ) y = input(First y is: ) print(x is , x) print(y is , y) compare(x,y) a = input(Second x is: ) b = input(Second y is: ) print(x is , a) print(y is , b) compare(a,b) c = input(Third x is: ) d = input(Third y is: ) print(x is , c) print(y is , d) compare(c,d) Sample (and incorrect) output w/ 10, 5: First x is: 10 First y is: 5 x is 10 y is 5 10 is less than 5 x is 10 y is 5 Second x is: When I do simply compare(10, 5) from the shell, I get the correct output (ie 10 is greater than 5). I had thought I had narrowed the problem down to the fact that when I run the script only the first digit is counted-- however, it seems as if only the first digit is counted (ie anything starting w/ a 9 will be greater than anything starting with a 1 (even if the numbers are 9 and 1324234)), and THEN, the second digit is counted (such that 89 is correctly identified at 81). Anyway I'm wondering: 1) Why does the script run correctly when I simply call the function from the shell but not when I try to call the function from within the script? 2) What is actually going on such that only the first digit is being evaluated? That is, the interpreter knows that x is 10 and y is 5-- and yet, for some reason the 5 is being tested against the 1 and since 5 is bigger than 1, it concludes that 5 is greater than 10. thanks! Ben ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor Ben It would appear that you are comparing string in your script and not integers a= int(input(...)) -- Vince Spicer Developer ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] if statement
On Tue, Nov 2, 2010 at 1:07 PM, Glen Clark gle...@gmail.com wrote: sorry: NumItems = int(input(How many Items: )) Entries = [] for In in range(0,NumItems): Entries.append() for In in range(0,NumItems): Entries[In]=str(input(Enter name + str(In+1) + : )) for In in range(0,NumItems): print(Entries[In]) confirmed = int(input(Are you happy with this? (y/n): ) if confirmed == y: for In in range(0,NumItems): print(Entries[In] + : + str(In)) change = int(input(Which item would you like to change: ) Entries[change]=str(input(Please enter a nem name: ) else: #do nothing print(Entries) On Tue, 2010-11-02 at 15:05 -0400, Alex Hall wrote: On 11/2/10, Glen Clark gle...@gmail.com wrote: File /home/glen/workspace/test.py, line 19 if confirmed == y: ^ SyntaxError: invalid syntax Why does this not work??? PyDev says Expected:else It may help to see the rest of the file, or at least more of the code surrounding this statement. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor confirmed = int(input(Are you happy with this? (y/n): ) You are missing a ) that the end of this line to close the int -- Vince Spicer -- Sent from Ubuntu ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] rights
On Mon, Nov 1, 2010 at 2:05 PM, Chris King g.nius...@gmail.com wrote: Dear Tutors, How do you give a script right to read a folder? ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor Which Operation System? In linux the user that is running the script must be have read access chmod +r folder -- Vince Spicer -- Sent from Ubuntu ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] pythonpath
On Mon, Nov 1, 2010 at 3:41 PM, Chris King g.nius...@gmail.com wrote: Dear Tutors, When I try to import a module, how can I make it look in certain directories for them easily. Sincerely, Chris ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor Hello Chris You can manage you path from within your script, import sys sys.path.append(/home/user/lib) Or in bash you can edit your $PYTHONPATH env variable echo $PYTHONPATH -- Vince Spicer -- Sent from Ubuntu ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] pythonpath
On Mon, Nov 1, 2010 at 3:58 PM, Chris King g.nius...@gmail.com wrote: On 11/1/2010 5:57 PM, Vince Spicer wrote: On Mon, Nov 1, 2010 at 3:54 PM, Chris King g.nius...@gmail.com wrote: On 11/1/2010 5:47 PM, Vince Spicer wrote: On Mon, Nov 1, 2010 at 3:41 PM, Chris King g.nius...@gmail.com wrote: Dear Tutors, When I try to import a module, how can I make it look in certain directories for them easily. Sincerely, Chris ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor Hello Chris You can manage you path from within your script, import sys sys.path.append(/home/user/lib) Or in bash you can edit your $PYTHONPATH env variable echo $PYTHONPATH -- Vince Spicer -- Sent from Ubuntu So doing it in cmd windows will permanently change it? the first way with work for Window, the second is for Linux or posix systems Sorry I can't help with PYTHONPATH on windows. -- Vince Spicer -- Sent from Ubuntu I want a permanent change. There is probably a Windows alternative to env variables and PYTHONPATH, Google may help. -- Vince Spicer -- Sent from Ubuntu ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] pythonpath
On Mon, Nov 1, 2010 at 4:00 PM, Vince Spicer vi...@vinces.ca wrote: On Mon, Nov 1, 2010 at 3:58 PM, Chris King g.nius...@gmail.com wrote: On 11/1/2010 5:57 PM, Vince Spicer wrote: On Mon, Nov 1, 2010 at 3:54 PM, Chris King g.nius...@gmail.com wrote: On 11/1/2010 5:47 PM, Vince Spicer wrote: On Mon, Nov 1, 2010 at 3:41 PM, Chris King g.nius...@gmail.com wrote: Dear Tutors, When I try to import a module, how can I make it look in certain directories for them easily. Sincerely, Chris ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor Hello Chris You can manage you path from within your script, import sys sys.path.append(/home/user/lib) Or in bash you can edit your $PYTHONPATH env variable echo $PYTHONPATH -- Vince Spicer -- Sent from Ubuntu So doing it in cmd windows will permanently change it? the first way with work for Window, the second is for Linux or posix systems Sorry I can't help with PYTHONPATH on windows. -- Vince Spicer -- Sent from Ubuntu I want a permanent change. There is probably a Windows alternative to env variables and PYTHONPATH, Google may help. -- Vince Spicer -- Sent from Ubuntu Sorry I don't know any developers that run Windows anymore, if you find the solution please post it back here. Thanks. -- Vince Spicer -- Sent from Ubuntu ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Requesting restricted URL (further authentication requested)
On Tue, Oct 19, 2010 at 1:56 PM, Tim Johnson t...@johnsons-web.com wrote: I've written the following function which successfully gets an authenticated URL: def getRestrictedURL(authName,URL,log,pswd): auth_handler = urllib2.HTTPBasicAuthHandler() auth_handler.add_password(authName, URL,log,pswd) opener = urllib2.build_opener(auth_handler) urllib2.install_opener(opener) return opener.open(URL).read() # But, alas, any links in content 'beneath' the URL # require additional authentication. Any way around this? Thanks -- Tim tim at johnsons-web.com or akwebsoft.com http://www.akwebsoft.com ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor Tim, Unless you are tied to the standard library I would recommend looking at httplib2 http://code.google.com/p/httplib2/ This handles your authentication and connection much better then the standard urllib. -- Vince Spicer -- Sent from Ubuntu ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Statistic-Program Problems! Please Help Quickly!
On Thu, Oct 14, 2010 at 10:11 PM, Colleen Glaeser songbird42...@gmail.comwrote: BTW, the error message my program gives me for the B and M functions is: Traceback (most recent call last): File I:\Lab 7 wierd stat data.py, line 49, in module B() File I:\Lab 7 wierd stat data.py, line 44, in B ((Y() * Q()) - (P() * X())) / ((6 * Q()) - (X()**2)) TypeError: unsupported operand type(s) for *: 'NoneType' and 'NoneType' On Thu, Oct 14, 2010 at 11:09 PM, Colleen Glaeser songbird42...@gmail.com wrote: Dear tutors, I am in a beginning-level computer science class in college and am running into problems with an assignment. The assignment is as follows: Statisticians are fond of drawing regression lines. In statistics and other fields where people analyze lots of data, one of the most commonly used regression lines is called the “least squares line.” This is the line that is supposed to best fit the set of data points, in the sense that it minimizes the squared vertical distances between the points and the line. Why this should be a good fit is beyond the scope of this assignment. Presume that you have a collection of n two-dimensional data points. I’ll give it as a list of lists, where each of the lists inside represents one data point. Data :[ [x1, y1], [x2, y2], [x3, y3], …, [xn, yn]] Compute the following The regression line is then given by where m and b may be obtained by and Your task is to compute the m and b (slope and intercept, respectively) for a set of data. You have to analyze the data as given, not count or add anything yourself. Your program should do everything, even figure out how many data points there are. Here’s your data: First set: [ [3, 1], [4, 3], [6, 4], [7, 6], [8, 8], [9, 8] ] Second set: [ [63, 11], [22, 7.5], [63, 11], [28, 10], [151, 12], [108, 10], [18, 8], [115, 10], [31,7], [44, 9] ] Find m and b, then calculate an estimate for x = 5 using the first data set. That is, plug in 5 for x and see what y you get. For the second set, try x = 95. Turn in: code, m, b, and the estimates for both data sets. *** There’s an easy way to walk through the data and extract the values you need. Use a for loop. Try this: for item in data: [x, y] = item print(x) ~~ For extra credit: draw a scatter plot of the data, and draw in the least squares line. Scale the window to fit, making it a bit wider and higher than the data requires, so that some of the points are near but not on the edges of the window. Then sketch in the regression line. Note that you should calculate the window size based on the data – don’t set them yourself; find the max and min values for x and y. You can print the scatter plot, or point me toward your web page. In any case, show me the code. So far, my program is as follows: Data = [[3,1],[4,3],[6, 4],[7, 6],[8, 8],[9, 8]] def X(): accX = 0 for item in Data: [x,y] = item accX = accX + x print (accX) def Y(): accY = 0 for item in Data: [x,y] = item accY = accY + y print (accY) def P(): accXY = 0 for item in Data: [x,y] = item accXY = accXY + (y*x) print (accXY) def Q(): accX2 = 0 for item in Data: [x,y] = item accX2 = accX2 + (x**2) print (accX2) X() Y() P() Q() def B(): ((Y() * Q()) - (P() * X())) / ((6 * Q()) - (X()**2)) def M(): ((Y() * Q()) - (P() * X())) / (X() * Q()) B() M() Now, my functions for X, Y, P, and Q are correct, but I have a couple of problems when it comes to continuing. First of all, despite what my teacher has told me, my method for trying to multiply X,Y,P, and Q's results in the functions for B and M are not working. I'm not sure if there is a way to make functions into variables or how to solve this problem. Second, I am confused as to what my teacher means to do when it comes to inputting different values of x. Find m and b, then calculate an estimate for x = 5 using the first data set. That is, plug in 5 for x and see what y you get. For the second set, try x = 95. Turn in: code, m, b, and the estimates for both data sets. I mean, I know I need to calculate the line of best fit for the data sets using B and M, but what in the world is x supposed to do and where does it go? How do I program this? This is especially harder since I've never taken a proper stat class before. Thank you all so much! -- Colleen Glaeser songbird42...@gmail.com 636.357.8519 -- Colleen Glaeser songbird42...@gmail.com 636.357.8519 ___ Tutor maillist - Tutor@python.org To unsubscribe
Re: [Tutor] Getting/setting attributes
On Tue, Sep 21, 2010 at 4:16 PM, bob gailer bgai...@gmail.com wrote: On 9/21/2010 5:06 PM, lists wrote: Hi tutors, I'm trying to each myself programming and come from a background in system administration with some experience in scripting (so I'm very new to it). Currently I'm grappling with the concept of object orientating programming and have a question about setting getting attributes. As I understand it, it makes most sense to set/get the attribute of an object using a method rather than doing it directly. My opinion - unless there is some verification or translation or action required it is better (easier, clearer) to just access and assign the attribute directly. I've been reading various ways of doing this, and the information seems a little contradictory. Example, please? I've muddled my way through the code below to try and force setting or getting the 'address' attribute through the address method rather than allowing direct access. Just because you have a getter and setter does not prohibit direct reference to _address. Does this make sense to you? class Computer(object): def __init__(self): instantiate the class with default values self.address = I suggest (if you want to go the setter/getter route that you initialize _address, just in case someone tries to reference it without setting it. @property # use the property.getter decorator on this method def address(self): return self._address @address.setter #use the property.setter decorator on this method def address(self, addrvalue): self._address = addrvalue computer1 = Computer() computer1.address = test print computer1.address -- Bob Gailer 919-636-4239 Chapel Hill NC ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor Hello Bob, Here is a working example of what I think you are trying to achieve. In this example the address is set via the setter and some simple validation is there and the private var isn't available as __address but get rewritten to _Computer__address (so not private but not obvious) class Computer(object): def __init__(self): self.__address = None # see note on private vars in Python http://docs.python.org/tutorial/classes.html?highlight=private#private-variables @property def address(self): return self.__address @address.setter def address(self, value): if value not in (available, criteria): raise AttributeError(Nope) self.__address = value Hope that helps, Vince Spicer -- Sent from Ubuntu ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Overloading methods
On Thu, Sep 16, 2010 at 6:02 AM, Michael Powe mich...@trollope.org wrote:
Hello,
Strictly speaking, this isn't overloading a method in the way we do it
in Java. But similar. Maybe.
I am writing a module for processing web server log files and one of
the methods I provide is to extract a given query parameter and its
value. Because there are several types of log files with different
line structures, I had the thought to write methods with descriptive
names that simply returned a generic method that processed the method
arguments. e.g.,
def setpattern_iis(self,pattern,parameter) :
type='iis'
return pattern_generator(self,type,pattern,parameter)
In this case, creating a regular expression to parse the log lines for
a query parameter.
This is just a bit more self documenting than using the generic
method with the 'type' argument and requiring the user to enter the
type. At the same time, it allows me to put all the parsing code in
one method.
My question is, is this a bad thing to do in python?
Thanks.
mp
--
Michael Powemich...@trollope.orgNaugatuck CT USA
War is a sociological safety valve that cleverly diverts popular
hatred for the ruling classes into a happy occasion to mutilate or
kill foreign enemies. - Ernest Becker
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Well I can't comment on right or wrong I would think creating a simple class
with a __call__ method is a
little more pythonic.
Example:
class PatternGenerator(object):
Run a regex.
def __init__(self, type_):
self.type = type_
def __call__(self, pattern, parameter):
return pattern_generator(self, self.type, pattern, parameter)
# Initialize class
setpattern_iis = PatternGenerator('iis')
# call the method here
setpattern_iis(pattern, params)
Hope that helps,
Vince
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Re: [Tutor] Comparing two lists
On Thu, Sep 16, 2010 at 12:27 PM, Michael Powe mich...@trollope.org wrote: Hello, I have two lists. alist = ['label', 'guid'] blist = ['column0label', 'column1label', 'dimension0guid', 'description', 'columnid'] I want to iterate over blist and extract the items that match my substrings in alist; alternatively, throw out the items that aren't in alist (but, I've had bad experiences removing items from lists in place, so I tend toward the copy motif.) In real life, blist column entries could have embedded column numbers from 0 to 19. I can do this with excrutiatingly painful 'for' loops. Looking for something more efficient and elegant. Thanks. mp -- Michael Powemich...@trollope.orgNaugatuck CT USA The secret to strong security: less reliance on secrets. -- Whitfield Diffie ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor Michel, One solution is to use list comprehensions. newlist = [x for x in blist if [a for a in alist if a in x]] This works, although there may be more efficient ways to accomplish this Vince ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Comparing two lists
On Thu, Sep 16, 2010 at 12:49 PM, Vince Spicer vi...@vinces.ca wrote: On Thu, Sep 16, 2010 at 12:27 PM, Michael Powe mich...@trollope.orgwrote: Hello, I have two lists. alist = ['label', 'guid'] blist = ['column0label', 'column1label', 'dimension0guid', 'description', 'columnid'] I want to iterate over blist and extract the items that match my substrings in alist; alternatively, throw out the items that aren't in alist (but, I've had bad experiences removing items from lists in place, so I tend toward the copy motif.) In real life, blist column entries could have embedded column numbers from 0 to 19. I can do this with excrutiatingly painful 'for' loops. Looking for something more efficient and elegant. Thanks. mp -- Michael Powemich...@trollope.orgNaugatuck CT USA The secret to strong security: less reliance on secrets. -- Whitfield Diffie ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor Michel, One solution is to use list comprehensions. newlist = [x for x in blist if [a for a in alist if a in x]] This works, although there may be more efficient ways to accomplish this Vince On major speed up is to make a simple filter that returns as soon as a match is found instead of completing the loop every element in alist def filter_(x, against): for a in against: if a in x: return True return False newlist = [x for x in blist if filter_(x, alist)] :) Vince ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] If/elif/else when a list is empty
On Mon, Sep 13, 2010 at 9:58 PM, aenea...@priest.com wrote: Hi, I'm parsing IMDB movie reviews (each movie is in its own text file). In my script, I'm trying to extract genre information. Movies have up to three categories of genres--but not all have a genre tag and that fact is making my script abort whenever it encounters a movie text file that doesn't have a genre tag. I thought the following should solve it, but it doesn't. The basic question is how I say if genre information doesn't at all, just make rg1=rg2=rg3=NA? rgenre = re.split(r';', rf.info[genre]) # When movies have genre information they store it as genreDrama;Western;Thriller/genre if len(rgenre)0: if len(rgenre)2: rg1=rgenre[0] rg2=rgenre[1] rg3=rgenre[2] elif len(rgenre)==2: rg1=rgenre[0] rg2=rgenre[1] rg3=NA elif len(rgenre)==1: rg1=rgenre[0] rg2=NA rg3=NA else len(rgenre)1: # I was hoping this would take care of the there is no genre information scenario but it doesn't rg1=rg2=rg3=NA This probably does a weird nesting thing, but even simpler version I have tried don't work. Thanks very much for any help! Tyler ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor Hey Tyler you can simplify this with a onliner. rg1, rg2, rg3 = rgenre + [NA]*(3-len(rgenre[:3])) Hope that helps, if you have any questions feel free to ask. Vince ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] If/elif/else when a list is empty
Tyler, This is a simple error the KeyError is caused because the key isn't in the dictionary http://docs.python.org/library/exceptions.html#exceptions.KeyError and easy fix you can either check for the key prior to using or use the get method 1) rgenre = re.split(r';', rf.info[genre]) if genre in rf.info else [] the regex will never get executed here and an empty list will be returned if genre not present 2) rgenre = re.split(r';', rf.info.get(genre, '')) the get will not throw this error and return '' if ''genre' is not found in the dictionary Hope that helps, Vince http://docs.python.org/library/exceptions.html#exceptions.KeyError On Mon, Sep 13, 2010 at 10:46 PM, aenea...@priest.com wrote: Hi Vince, Thanks very much for the one-line version--unfortunately, I still get errors. The overall script runs over every text file in a directory, but as soon as it hits a text file without a genre tag, it gives this error: Traceback (most recent call last): File C:\Users\tylersc\Desktop\Tyler2\Tyler\words_per_review_IMDB_9-13-10.py, line 168, in module main(.,output.csv) File C:\Users\tylersc\Desktop\Tyler2\Tyler\words_per_review_IMDB_9-13-10.py, line 166, in main os.path.walk(top_level_dir, reviewDirectory, writer ) File C:\Python26\lib\ntpath.py, line 259, in walk func(arg, top, names) File C:\Users\tylersc\Desktop\Tyler2\Tyler\words_per_review_IMDB_9-13-10.py, line 162, in reviewDirectory reviewFile( dirname+'/'+fileName, args ) File C:\Users\tylersc\Desktop\Tyler2\Tyler\words_per_review_IMDB_9-13-10.py, line 74, in reviewFile rgenre = re.split(r';', rf.info[genre]) KeyError: 'genre' I'm about to give what may be too much information--I really thought there must be a way to say don't choke if you don't find any rgenres because rf.info[genre] was empty. But maybe I need to define the None condition earlier? Basically a text file has this structure: info titleHigh Noon/title genreDrama;Western/genre # But this tag doesn't exist for all text files # etc /info review authoru493498/author rating9 out of 10/rating summaryA great flick/summary textblah blah blah/text # etc /review # next review--all about the movie featured in the info tags -Original Message- From: Vince Spicer vi...@vinces.ca To: aenea...@priest.com Cc: tutor@python.org Sent: Mon, Sep 13, 2010 9:08 pm Subject: Re: [Tutor] If/elif/else when a list is empty On Mon, Sep 13, 2010 at 9:58 PM, aenea...@priest.com wrote: Hi, I'm parsing IMDB movie reviews (each movie is in its own text file). In my script, I'm trying to extract genre information. Movies have up to three categories of genres--but not all have a genre tag and that fact is making my script abort whenever it encounters a movie text file that doesn't have a genre tag. I thought the following should solve it, but it doesn't. The basic question is how I say if genre information doesn't at all, just make rg1=rg2=rg3=NA? rgenre = re.split(r';', rf.info[genre]) # When movies have genre information they store it as genreDrama;Western;Thriller/genre if len(rgenre)0: if len(rgenre)2: rg1=rgenre[0] rg2=rgenre[1] rg3=rgenre[2] elif len(rgenre)==2: rg1=rgenre[0] rg2=rgenre[1] rg3=NA elif len(rgenre)==1: rg1=rgenre[0] rg2=NA rg3=NA else len(rgenre)1: # I was hoping this would take care of the there is no genre information scenario but it doesn't rg1=rg2=rg3=NA This probably does a weird nesting thing, but even simpler version I have tried don't work. Thanks very much for any help! Tyler ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor Hey Tyler you can simplify this with a onliner. rg1, rg2, rg3 = rgenre + [NA]*(3-len(rgenre[:3])) Hope that helps, if you have any questions feel free to ask. Vince ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Append sub-key to dictionary
On Tue, May 25, 2010 at 12:28 PM, M. Bashir Al-Noimi mbno...@gmx.comwrote:
Hi All,
I'm trying to append a new sub-key to specific dictionary but it replacing
the content of parent key instead of add a sub-key!
How I can fix this issue?
--snippet--
addressbook = {
'work': {
'Andre': {
'phone': '22761654',
'e-mail': '5456646',
'address': 'Syria, Aleppo',
'website': 'www.sdff.com'
}
},
'Friends': {
'Ahmad': {
'phone': '34646464',
'picture': '/home/fiends/wael.png',
'posts': {
'blog': 'http://www.dsfd.com/',
'newspaper': 'http://news.com/'
}
},
'Issa': {
'e-mail': 'a...@dsfdsc.com'
}
}
}
addressbook['Friends'] = {
'kassem': {
'address':'Aleppo Street',
'Country':'Palestine',
'articles':{
'blog':'http://blogger.com',
'news':'http://news.com/'
}
}
}
--
Best Regards
Muhammad Bashir Al-Noimi
My Blog: http://mbnoimi.net
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You may have better results with:
addressbook['Friends']['kassem] = {
'address':'Aleppo Street',
'Country':'Palestine',
'articles':{
'blog':'
http://blogger.com',
'news':'http://news.com/'
}
}
}
this will create a new key in the Friends dict
Vince
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Re: [Tutor] test
On Thu, Feb 25, 2010 at 4:03 PM, Kirk Bailey kbai...@howlermonkey.netwrote: test -- Cheers! -Kirk D Bailey THINK +-+ .*.| BOX | ..*+-+ *** THINK ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor Hello World! usually a good test ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] html and python
On Wed, Feb 10, 2010 at 1:30 PM, Grigor Kolev grigor.ko...@gmail.comwrote: Hi. I want to make a list of E-mail, photos and some additional data. But I want this list to be displayed in one site. How can I send data from a list of site page. Which module should I use -- Grigor Kolev grigor.ko...@gmail.com ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor do you have any code currently? ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] html and python
On Wed, Feb 10, 2010 at 1:30 PM, Grigor Kolev grigor.ko...@gmail.comwrote: Hi. I want to make a list of E-mail, photos and some additional data. But I want this list to be displayed in one site. How can I send data from a list of site page. Which module should I use -- Grigor Kolev grigor.ko...@gmail.com ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor Your best bet is show us some code .. then we can help. Vince ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Compile py to exe in ubuntu
On Wed, Feb 10, 2010 at 1:40 PM, Harya Dananjaya dananz...@gmail.comwrote: Can I compile my python source to exe in ubuntu? if I can do it, which compiler can do it? Thanks you, Harya Dananjaya ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor 1. Ubuntu and linux in general don't use exe per say 2. Python can be compiled but not usually in the way you are thinking 3. you might check out http://pypi.python.org/pypi/bbfreeze/ Vince ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] help with strings
On Wed, Feb 3, 2010 at 7:19 AM, NISA BALAKRISHNAN snisa.balakrish...@gmail.com wrote: hi I am very new to python. I have a string for example : 123B new Project i want to separate 123B as a single string and new project as another string . how can i do that. i tried using partition but couldnt do it pls help. thanks in advance! Can we see some example code you are trying? Vince ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] how to sort a tab delim file
On Wed, Jan 13, 2010 at 9:21 AM, Hs Hs ilhs...@yahoo.com wrote: Hi: I have a tab-delim file: col1 col2 col3 andrew1987 1990 jake 1974 1980 jim 1964 1970 lance1984 1992 how can I sort column 2 and get : jim 1964 1970 jake 1974 1980 lance1984 1992 andrew1987 1990 I know how to sort a items in one list. but I cannot get how this can be done on a file. any suggestions. thanks! Hs ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor Sounds like a school project to me ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] how to sort a tab delim file
On Wed, Jan 13, 2010 at 9:21 AM, Hs Hs ilhs...@yahoo.com wrote: Hi: I have a tab-delim file: col1 col2 col3 andrew1987 1990 jake 1974 1980 jim 1964 1970 lance1984 1992 how can I sort column 2 and get : jim 1964 1970 jake 1974 1980 lance1984 1992 andrew1987 1990 I know how to sort a items in one list. but I cannot get how this can be done on a file. any suggestions. thanks! Hs ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor http://diveintopython.org ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Unexpected Result in Test Sequence
On Mon, Nov 16, 2009 at 1:18 PM, kb1...@aim.com wrote: Hello Tutor list. I'm running a test to find what the experimental average of a d20 is, and came across a strange bug in my code. import random list1 = [] def p(): d = 0 for number in range(1,1000): t = random.randrange(1,19) list1.append(t) for value in list1: d+=value print d/1000 d = 0 for value in range(1,100): p() It works, but I have a logic error somewhere. It runs, and the results have a pattern : 9 19 28 37 47 56 66 75 85 94 104 113 ... ... It just adds 10, and every second result, subtracts 1, till it gets to 0, and then starts again with 9 in singles, and whatever in the 10's, etc. What is causing this? ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor I think that one problem you are seeing is caused by the use of integers When you are dividing sum of the random number by 1000, python is rounding your output. Also your list, never gets cleared and you keep adding to the original list, and you are then dividing by the original 1000 A simple fix is to use floats (PS: cleaned up a bit): from random import randrange def p(): mylist = [randrange(1,19) for x in range(1, 1000)] d = sum(list) print float(d) / len(mylist) for value in range(1,100): p() Hope this point you in a better direction Vince ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Retrieving information from a plain text file (WinXP/py2.6.2/Beginner)
On Sun, Nov 1, 2009 at 5:37 PM, Katt the_only_kat...@verizon.net wrote:
Hello all,
Thank you all for your help. I appreciate it alot.
I have been trying to work with file IO alot recently and would like to
improve my little program so that I no longer use a hard coded list, but a
text file that I can edit easily.
The text file is three lines long and looks exactly like this:
Reminder1,2009_10_28
Reminder2,2009_11_01
Reminder3,2009_11_15
My program consists of the following code:
#]--[import modules]--[
from time import strftime, mktime, localtime
from WConio import textcolor
#][
#]--[define functions]--[
def read_reminders():
print \nReading text file into program: reminders.txt
text_file = open(reminders.txt,r)
reminders = [line.strip().split(') for line in text_file]
text_file.close()
print reminders
#
def get_computer_date():
#Get today's date from the computer
todays_date = strftime(%Y_%m_%d)
return todays_date
#
def color_print(strings):
#Change the text color in the WinXP dos shell
#The way to use:
#color_print([(string,color number),\
#(str(variable),color number),(etc)])
for string in strings:
textcolor(string[1])
print string[0],
#
def change_to_julian(reminder_date):
#Receives the year, month, and day
#in the form of a single string (2009_10_15)
#and changes it into three different int
#variables. Then take those three variables
#and append six zeros and change into a
#julian date.
date = []
date = reminder_date.split(_)
year = int(date[0])
month = int(date[1])
day = int(date[2])
timetuple = (year, month, day) + ( (0,) * 6 )
unixtime = mktime(timetuple)
timetuple = localtime(unixtime)
print days_left(timetuple[7])
# [7] is the number of julian-date field of
#the unixtime tuple.
return days_left(timetuple[7])
#
def days_left(julian_date):
#This function calculates the days left
#until a reminder. If the days left are
#greater than 0 it will print normally.
#If it is -1 then it will print differently.
#Also if it is greater than -1 it will print
#yet again differently.
days_until_reminder = julian_date - localtime().tm_yday
if days_until_reminder 0:
color_print ([(There are,7),(str(days_until_reminder),4),(days
left until this reminder.,7),(\n,7)])
elif days_until_reminder == -1:
color_print ([(\tYou have missed this reminder
by,4),(str(days_until_reminder*-1),4),(day!,4),(\n,7)])
color_print [(
,4),(\n,7)])
else:
color_print ([(\tYou have missed this reminder
by,4),(str(days_until_reminder*-1),4),(days!,4),(\n,7)])
color_print [(
,4),(\n,7)])
print
#
def compare_reminders(todays_date):
#This function compares the reminders
#to the computer date.
#It has three different paths:
# 1.Matches today's date
# 2.The reminder date has already
# passed by
# 3.The reminder date is yet to
# come.
#After determining which it is it will
#access the change_to_julian and
#days_left functions.
#reminders.sort()
color_print ([(
[-],4),(\n,7)])
index = 0
while index len(reminders):
if todays_date == reminders[index][1]:
print
color_print [(
,4),(\n,7)])
print Today's reminder is:
,reminders[index][0],on,reminders[index][1]
color_print ([(\t\tTake care of this reminder
immediately,2),(\n,7)])
elif todays_date reminders[index][1]:
print
print Whoops, you missed the following
reminder.,reminders[index][0],on,reminders[index][1]
change_to_julian(reminders[index][1])
else:
print
print Your upcoming reminders are:
,reminders[index][0],on,reminders[index][1]
change_to_julian(reminders[index][1])
index = index + 1
color_print ([(
[-],4),(\n,7)])
#][
#]---[Main Program]---[
read_reminders()
print reminders
compare_reminders(get_computer_date())
pause_it = raw_input(Press a key to end: )
#][
Could someone explain to me why my read_reminders function retrieves the
information, but cannot process that information?
When I try and run the program I get the following error message:
Reading text file into program: reminders.txt
Re: [Tutor] replacing a long list of if,elif
On Fri, Oct 23, 2009 at 9:05 AM, John jfabi...@yolo.com wrote:
I'm using python 2.5
I have a long list of if, elif, else. I always thought it was very NOT
pythonic. It's easy to read but not pretty.
for fldType in fieldList:
if int in fldType:
fld = I
elif char in fldType :
fld = C
elif bool in fldType :
fld = B .
else:
fld = '?'
I have considered:
mydict = {'int': 'I', 'char':'C', 'bool':'B'}
for fldType in fieldList:
try:
fld = mydict[fldType]
except:
fld = '?'
I also considered some sort of lambda function as
x = lambda fld: mydict[fldType]
But could not determine how to account for the key exception. So I tried
x = lambda fldType: mydict[fldType]
if fldType in mydict:
x(fldType)
else:
fld = '?'
Any suggestions would be helpful and would help me learn.
Johnf
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John,
Using a Dictionary is the best method to use here and you can use dict.get
in order to bypass the KeyError
EX:
myDict.get(fldType, None)
this will output the value from myDict if the key exists, if not it will
return None
Vince
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Re: [Tutor] i can't for the life of me get #! /usr/bin/env python or #!/usr/bin/python to work
On Wed, Oct 21, 2009 at 12:21 PM, Jason Willis chaoticslac...@gmail.comwrote: hi everyone, sorry for the rather boring question but i'm having serious issues getting my programs to run from the command line without having to type python in-front of them. I've tried a lot of different variations on the #!/usr/bin/ etc. line and have come up with the following every time: *[r...@localhost moonshinerat]# mycode.py bash: mycode.py: command not found [r...@localhost moonshinerat]# mycode bash: mycode: command not found [r...@localhost moonshinerat]# I've chmod'ed the program and everything but i still get command not found from the shell. The only thing that does work is ./mycode.py but from what i understand that's been built into linux itself to work that way... please someone let me know what i'm doing wrong here and possibly help?? thanks! * ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor try: ./mycode.py since i'm guess your current path isn't in the system path Vince ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] i can't for the life of me get #! /usr/bin/env python or #!/usr/bin/python to work
On Wed, Oct 21, 2009 at 12:31 PM, vince spicer vinces1...@gmail.com wrote:
On Wed, Oct 21, 2009 at 12:21 PM, Jason Willis
chaoticslac...@gmail.comwrote:
hi everyone,
sorry for the rather boring question but i'm having serious issues getting
my programs to run from the command line without having to type python
in-front of them. I've tried a lot of different variations on the
#!/usr/bin/ etc. line and have come up with the following every time:
*[r...@localhost moonshinerat]# mycode.py
bash: mycode.py: command not found
[r...@localhost moonshinerat]# mycode
bash: mycode: command not found
[r...@localhost moonshinerat]#
I've chmod'ed the program and everything but i still get command not found
from the shell. The only thing that does work is ./mycode.py but from what i
understand that's been built into linux itself to work that way...
please someone let me know what i'm doing wrong here and possibly help??
thanks!
*
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try:
./mycode.py
since i'm guess your current path isn't in the system path
Vince
Sorry didn't read full post,
you would have add your program directory to the system path in order to
call the program by name
you can add this to you bashrc
export PATH=~/my/program/dir:${PATH}
Vince
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Re: [Tutor] i can't for the life of me get #! /usr/bin/env python or #!/usr/bin/python to work
On Wed, Oct 21, 2009 at 12:33 PM, vince spicer vinces1...@gmail.com wrote:
On Wed, Oct 21, 2009 at 12:31 PM, vince spicer vinces1...@gmail.comwrote:
On Wed, Oct 21, 2009 at 12:21 PM, Jason Willis
chaoticslac...@gmail.comwrote:
hi everyone,
sorry for the rather boring question but i'm having serious issues
getting my programs to run from the command line without having to type
python in-front of them. I've tried a lot of different variations on the
#!/usr/bin/ etc. line and have come up with the following every time:
*[r...@localhost moonshinerat]# mycode.py
bash: mycode.py: command not found
[r...@localhost moonshinerat]# mycode
bash: mycode: command not found
[r...@localhost moonshinerat]#
I've chmod'ed the program and everything but i still get command not
found from the shell. The only thing that does work is ./mycode.py but from
what i understand that's been built into linux itself to work that way...
please someone let me know what i'm doing wrong here and possibly help??
thanks!
*
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try:
./mycode.py
since i'm guess your current path isn't in the system path
Vince
Sorry didn't read full post,
you would have add your program directory to the system path in order to
call the program by name
you can add this to you bashrc
export PATH=~/my/program/dir:${PATH}
Vince
A better description of linux PATH:
http://www.linuxheadquarters.com/howto/basic/path.shtml
http://www.linfo.org/path_env_var.html
Vince
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Re: [Tutor] i can't for the life of me get #! /usr/bin/env python or #!/usr/bin/python to work
On Wed, Oct 21, 2009 at 3:56 PM, Jason Willis chaoticslac...@gmail.comwrote: so i changed the .bashrc and added at the end : PATH=/home/compy/pythons:$PATH ###which is the actual path to my python proggies### and i still get co...@compy-laptop:~/pythons$ herosinventory.py herosinventory.py: command not found co...@compy-laptop:~/pythons$ herosinventory.py herosinventory.py: command not found co...@compy-laptop:~/pythons$ herosinventory herosinventory: command not found co...@compy-laptop:~/pythons$ I must be retarded. I'm sorry , what am I doing wrong here? On Wed, Oct 21, 2009 at 2:31 PM, vince spicer vinces1...@gmail.comwrote: On Wed, Oct 21, 2009 at 12:21 PM, Jason Willis chaoticslac...@gmail.comwrote: hi everyone, sorry for the rather boring question but i'm having serious issues getting my programs to run from the command line without having to type python in-front of them. I've tried a lot of different variations on the #!/usr/bin/ etc. line and have come up with the following every time: *[r...@localhost moonshinerat]# mycode.py bash: mycode.py: command not found [r...@localhost moonshinerat]# mycode bash: mycode: command not found [r...@localhost moonshinerat]# I've chmod'ed the program and everything but i still get command not found from the shell. The only thing that does work is ./mycode.py but from what i understand that's been built into linux itself to work that way... please someone let me know what i'm doing wrong here and possibly help?? thanks! * ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor try: ./mycode.py since i'm guess your current path isn't in the system path Vince you need export: export PATH=/home/compy/pythons:$PATH Vince ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Pexpect maxread searchwindowsize, timeout
On Tue, Oct 20, 2009 at 11:11 AM, Nathan Farrar nathan.far...@gmail.comwrote:
I haven't been able to find any real examples of pexpect usage, nor
documentation. Just little bits here and there, so I'm kind of
struggling through.
I've got the follow bit of code I'm working with:
def main():
try:
print 'attempting to spawn connection ... '
session = pexpect.spawn('ssh usern...@x.x.x.x')
except:
print 'couldn\'t spawn connection ... '
print 'waiting for password prompt ... '
session.expect('password:')
print 'received password prompt ... '
try:
print 'attempting to send password ... '
session.sendline(password)
except:
print 'error sending password ... '
print 'waiting for command prompt ... '
session.expect(command_prompt)
print 'received command prompt ... '
try:
print 'attempting to issue \'show version\' command ... '
session.sendline([expect.TIMEOUT=1, 'show version'])
except:
print 'error issuing \'show version\' command ... '
print 'waiting for command prompt ... '
session.expect(command_prompt)
print 'received command prompt ... '
print 'attempting to print command results ... '
print session.before
print 'closing session ... '
session.close()
if __name__=='__main__':
main()
When I run this against a cisco device, it times out waiting for the
command prompt after issuing the show version command. However, if I
change 'show version' to something like 'blah blah' it doesn't time
out, and I get the results of the command (an error message that is
much shorter in length).
I believe that the results of the show version command are simply too
large. I think I may need to increase the size of maxread
searchwindowsize set the timeout to something lower than the
default, but I haven't been able to figure out how to do this
correctly yet.
Any help would be greatly appreciated. I'm pulling my hair out. Thank
you.
--
The presence of those seeking the truth is infinitely to be preferred
to the presence of those who think they've found it.
–Terry Pratchett
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Looks like you are trying to end multiple commands to the sendline and not
expect
you can specify the timeout on the expect line
try this code:
#
def main():
try:
print 'attempting to spawn connection ... '
session = pexpect.spawn('ssh usern...@x.x.x.x')
except:
print 'couldn\'t spawn connection ... '
print 'waiting for password prompt ... '
session.expect('password:')
print 'received password prompt ... '
try:
print 'attempting to send password ... '
session.sendline(password)
except:
print 'error sending password ... '
print 'waiting for command prompt ... '
session.expect(command_prompt)
print 'received command prompt ... '
try:
print 'attempting to issue \'show version\' command ... '
session.sendline('show version') #: send only command
except:
print 'error issuing \'show version\' command ... '
print 'waiting for command prompt ... '
session.expect(command_prompt, timeout=1) #: set the timeout here
print 'received command prompt ... '
print 'attempting to print command results ... '
print session.before
print 'closing session ... '
session.close()
if __name__=='__main__':
main()
#==
Vince
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Re: [Tutor] if clause in list comprehensions.
On Mon, Oct 19, 2009 at 1:58 PM, Emile van Sebille em...@fenx.com wrote:
On 10/19/2009 12:20 PM Alan Gauld said...
Sander Sweers sander.swe...@gmail.com wrote
mylist = ['John', 'Canada', 25, 32, 'right']
a = [item.upper() for item in mylist if type(item) == type('good')]
Usually it is recommended to use hasattr() instead of type()
hasattr(s, 'upper')
Nope, they do completely different things
I think you might be thinking of isinstance() which can be used instead of
type(). I see you use hasattr as a means of testing for a method but that is
still different from testing type - the method names might be the same but
the functions be completely different in effect!
returned this: ['JOHN', 'CANADA', 'RIGHT']
I was expecting this: ['JOHN', 'CANADA', 25, 32, 'RIGHT']
So, actually the if acted like a filter.
It is intended to be used as a filter.
In order to use a list comprehension I created this function instead.
def upperfy(item)
try:
item = item.upper()
except AttributeError:
pass
return item
I would move return item under the except and remove the pass, other
might disagree on this.
I would :-)
Doing that would result in None being returned for each successful
conversion. The OPs code is correct (even if unnecessary)
a = [upperfy(item) for item in mylist]
a = [item.upper() if type(item) == str else item for item in mylist]
should do it I think.
or even
a = [ str(item).upper() for item in mylist ]
Emile
HTH,
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Lambda can save the day to keep everything on one line, and leave variable
type the same:
mylist = ['John', 'Canada', 25, 32, 'right']
new_list = [(lambda y: y.upper() if hasattr(y, 'upper') else y)(a) for a in
x]
['JACK', 'CANADA', 25, 32, 'RIGHT']
Vince
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Re: [Tutor] if clause in list comprehensions.
On Mon, Oct 19, 2009 at 2:14 PM, vince spicer vinces1...@gmail.com wrote:
On Mon, Oct 19, 2009 at 1:58 PM, Emile van Sebille em...@fenx.com wrote:
On 10/19/2009 12:20 PM Alan Gauld said...
Sander Sweers sander.swe...@gmail.com wrote
mylist = ['John', 'Canada', 25, 32, 'right']
a = [item.upper() for item in mylist if type(item) == type('good')]
Usually it is recommended to use hasattr() instead of type()
hasattr(s, 'upper')
Nope, they do completely different things
I think you might be thinking of isinstance() which can be used instead
of type(). I see you use hasattr as a means of testing for a method but that
is still different from testing type - the method names might be the same
but the functions be completely different in effect!
returned this: ['JOHN', 'CANADA', 'RIGHT']
I was expecting this: ['JOHN', 'CANADA', 25, 32, 'RIGHT']
So, actually the if acted like a filter.
It is intended to be used as a filter.
In order to use a list comprehension I created this function instead.
def upperfy(item)
try:
item = item.upper()
except AttributeError:
pass
return item
I would move return item under the except and remove the pass, other
might disagree on this.
I would :-)
Doing that would result in None being returned for each successful
conversion. The OPs code is correct (even if unnecessary)
a = [upperfy(item) for item in mylist]
a = [item.upper() if type(item) == str else item for item in mylist]
should do it I think.
or even
a = [ str(item).upper() for item in mylist ]
Emile
HTH,
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Lambda can save the day to keep everything on one line, and leave variable
type the same:
mylist = ['John', 'Canada', 25, 32, 'right']
new_list = [(lambda y: y.upper() if hasattr(y, 'upper') else y)(a) for a in
mylist ]
['JACK', 'CANADA', 25, 32, 'RIGHT']
Vince
wrong var name x, fixed
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Re: [Tutor] Testing for empty list
On Sun, Oct 18, 2009 at 7:29 PM, Wayne sri...@gmail.com wrote: Hi, I think I recall seeing this here, but I wanted to make sure I'm correct. Is the best way to test for an empty list just test for the truth value? I.e. mylist = [1,2,3] while mylist: print mylist.pop() Thanks, Wayne -- To be considered stupid and to be told so is more painful than being called gluttonous, mendacious, violent, lascivious, lazy, cowardly: every weakness, every vice, has found its defenders, its rhetoric, its ennoblement and exaltation, but stupidity hasn’t. - Primo Levi ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor I believe it is better to check the list length, I think some changes are coming on evaling list mylist = [1,2,3] while len(mylist) 0: print mylist.pop() Vince ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Help with pexpect
On Fri, Oct 16, 2009 at 1:45 PM, Nathan Farrar nathan.far...@gmail.comwrote:
I'm trying to automate the collection of data to remote devices over
ssh via pexpect. I had originally attempted (with limited success) to
use paramiko, however due to cisco's ssh implimentation I cannot send
mulitple commands over the same connection, which is absolutely
essential. Therefore, I'm now attempting to use pexpect, but am
having trouble getting started. I have a simple script, such as:
session = pexpect.spawn('ssh u...@host')
session.expect([pexpect.TIMETOUT, 'password:'])
session.send('password')
print session.read() # shouldn't this display the logon banner command
prompt?
session.close()
This code results in no output a hanging window. What am I doing
incorrect?
Additionally, I will need to add conditional pexpect statements, such
that when I execute a command I want to gather the output, however if
'--More--' is encountered (and it this can happen multiple times), I
want to send a newline character to the session and continue gathering
the output.
Thanks for the help!
Nathan
--
The presence of those seeking the truth is infinitely to be preferred
to the presence of those who think they've found it.
–Terry Pratchett
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when using pexpect for ssh you can run into some issues, I have used to
script some elaborate green screen apps, but not without some unforeseen
bugs
when connecting to a new machine, most ssh client will ask you verify the
fingerprint
something like:
are you sure you want to continue (yes/no)?
also session.send doesn't send eol \n but sendline does
So this should fix your connection
###
session = pexpect.spawn('ssh u...@host')
i = session.expect([pexpect.TIMETOUT, 'password:', yes/no])
if i == 2:
session.sendline(yes)
session.expect([pexpect.TIMETOUT, 'password:'])
if i == 1:
session.sendline('password')
print session.read() # shouldn't this display the logon banner command
prompt?
session.close()
###
the other your question, pexpects sendline(''), will just send a newline
not perfect but should work
###
license =
while True:
i = session.expect([--more--, yes/no])
if i == 1:
break
license += session.before
session.sendline('')
###
Vince
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Re: [Tutor] Package for verify validity of any kind of IP
On Thu, Oct 8, 2009 at 2:38 AM, Ansuman Dash ansuman.d...@gmail.com wrote: Hi, Can anybody suggest me a package to verify validity of any kind of IP, i.e. IPv4 or IPv6. Thanks, AD ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor I have used googles ipaddr package and have found it to work quite well http://code.google.com/p/ipaddr-py/ Vince ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] how to run php scripts in pylons framework?
On Fri, Oct 2, 2009 at 1:24 AM, ggi ggi gop...@gmail.com wrote: Dear All, I have some php scripts which I don't want to rewrite in python. How can I run php Scripts in python? Thanks in advance Googi G ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor Although rewriting is a better option, you can use the subprocess module to make system calls to the php interpreter import subprocess #simple caller, disguard output subprocess.call(php /path/to/my/old/script.php) # if you want output proc = subprocess.Popen(php /path/to/my/script.php, shell=True, stdout=subprocess.PIPE) script_response = proc.stdout.read() Hope that helps, Vince ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] help with alternate execution
On Tue, Sep 29, 2009 at 10:59 AM, wrobl...@cmich.edu wrote: I'm trying to make a very simple example to show alternate execution... if a number is divisible by 3 it will say so and if it isnt, it will say so. Heres my program n= raw_input(enter a number= ) def divisible(n): if n%3 == 0: print n, is divisible by 3 else: print n, is not divisible by 3 print divisible when I try it out, and enter 3, I get this-- enter a number= 3 function divisible at 0x02CC06B0 I'm not sure why I am getting this and am not quite sure what this means... could someone explain what I am doing wrong here and why it is telling me this? ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor You need the call the function with the user input n = raw_input(enter a number= ) def divisible(n): if n%3 == 0: print n, is divisible by 3 else: print n, is not divisible by 3 print divisible(n) Vince ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Help required
On Fri, Sep 25, 2009 at 1:56 PM, waqas ahmad waqas...@hotmail.com wrote: Hi, I dont know it is the right place to post this question. I need help to change one search code line . can you help me please. here is my search method code: search=re.compile(^#acl InternationalGroup.*\n, re.M).search(pagetext) if search: ret=search.group() else: ret='not defined' return ret here i am searching for #acl InternationalGroup in the pageText and when it true is then give me search group. I want to change this for following requirement: I want to search for #acl InternationalGroup and CatInternational for both in the pageText. when #acl InternationalGroup is not there but only CatInternational is there. then return me search group. I shall be thankful to you for any help. Best Regards, Waqas -- What can you do with the new Windows Live? Find outhttp://www.microsoft.com/windows/windowslive/default.aspx ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor i think this is what you are looking for: search=re.compile((#acl\sInternationalGroup|CatInternational).*\n, re.M).search(pagetext) if search: ret=search.findall() else: ret='not defined' return ret ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Image manipluation (On-the-fly thumbnail creation)
On Tue, Sep 15, 2009 at 10:03 AM, dan06 dan.king...@yahoo.com wrote: I've recently delved into python, about a week or so ago; I'm trying to figure out how to create on-the-fly thumbnails. Are there python standard library modules I could/should use or should I use external libraries like: GD, Gimp, or ImageMagick? -- View this message in context: http://www.nabble.com/Image-manipluation-%28On-the-fly-thumbnail-creation%29-tp25456792p25456792.html Sent from the Python - tutor mailing list archive at Nabble.com. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor check out: http://www.pythonware.com/products/pil/ creating thumbnail example here http://www.pythonware.com/library/pil/handbook/image.htm Vince ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Getting list of attributes from list of objects
On Thu, Sep 10, 2009 at 8:51 AM, Oleg Oltar oltarase...@gmail.com wrote: Hi! I have the following list l= [ a, b, c] Where a,b,c are objects created from one class, e.g. each has title attribute. What I want to have is a list of titles, e.g. [a.title, b.title, c.title] Is there a quick way to do it? Or I should use loops (looping through each element, and generating list) ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor you can use list comprehension, which is a type of loop, but looks so pretty :) titles = [x.title for x in l] Vince ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Boolean operations
On Wed, Sep 2, 2009 at 4:30 AM, Anthony Casey amca...@xtra.co.nz wrote: Hello, tutors. I'm someone who used to programme as a hobby and who is trying to get back into it via Python. I'm reading Programming in Python 3 by Summerfield (excellent book). I read something unusual about Boolean operations in Python: five = 5 two = 2 zero = 0 five and two 2 I understand what it's doing here: returning the operand. But what is the practical application of that? How might I use that function? (Short-sighted imagination, I realise.) (I know how binary Booleans work etc., so this is a bit of a change of outlook.) Please pardon me if this is a silly or inane question. Regards, Anthony ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor this might make the and operator a little clearer http://pyref.infogami.com/and Vince ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] I always get this message as a reply
On Wed, Sep 2, 2009 at 7:55 AM, Kristina Ambert krissy.amb...@gmail.comwrote: Hi, I just wanted to ask if everyone else gets this message as a first reply everytime you send out a message to tutor. It feels like I'm getting spam or something. Geneviève DIAGORN to me show details 3:59 PM (17 hours ago) Bonjour, Je suis absente jusqu'au 02/09 inclus. En cas d'urgence Soprane, contacter notre adresse générique projet.sopr...@teamlog.com. Cordialement. Geneviève -- Krissy --- Testing the waters is always fun... ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor Someone on the list has gone on vacation and has an auto responder to tell clients that they are away. Vince ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] packing a list of lists
On Fri, Aug 28, 2009 at 8:05 AM, kevin parks k...@me.com wrote: Back to python after a long long layoff. So i am running into some beginner's confusion... I am trying to plot a list of numbers in gnuplot.py. To do that I am trying to pack the list with an index by iterating over the list so i can get something like: foo = [12, 11, 9, 6, 2, 9, 3, 8, 12, 3, 5, 6] [ [1, 12], [2, 11], [3, 9], [4, 6], [5, 2], [6, 9], [7, 3], [8, 8] ... ] So that i have x, y pairs to plot. When i print in my func i get the right thing, for each item (note scaffolding) yet when i reurn the whole list i just get the last pair repeated over and over. I am not sure why this is. def pack(in_seq): out_list=[] x = 1 ll=[1, 1] for each in in_seq: ll[0] = x ll[1] = each out_list.append(ll) #print ll x = x + 1 print out_list # function declarations would go here def test(): test function - say what this does here and skip a line Keyword arguments: none print foo = minus(200) plot_me = pack(foo) #print foo print print plot_me if __name__ == __main__: test() ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor Although I didn't test your code, I think what you are trying to accomplish can be done using enumerate cleaner def pack(foo): out = [] for x,y in enumerate(foo, 1): out.append((x,y)) return out ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] packing a list of lists
On Fri, Aug 28, 2009 at 9:18 AM, vince spicer vinces1...@gmail.com wrote: On Fri, Aug 28, 2009 at 8:05 AM, kevin parks k...@me.com wrote: Back to python after a long long layoff. So i am running into some beginner's confusion... I am trying to plot a list of numbers in gnuplot.py. To do that I am trying to pack the list with an index by iterating over the list so i can get something like: foo = [12, 11, 9, 6, 2, 9, 3, 8, 12, 3, 5, 6] [ [1, 12], [2, 11], [3, 9], [4, 6], [5, 2], [6, 9], [7, 3], [8, 8] ... ] So that i have x, y pairs to plot. When i print in my func i get the right thing, for each item (note scaffolding) yet when i reurn the whole list i just get the last pair repeated over and over. I am not sure why this is. def pack(in_seq): out_list=[] x = 1 ll=[1, 1] for each in in_seq: ll[0] = x ll[1] = each out_list.append(ll) #print ll x = x + 1 print out_list # function declarations would go here def test(): test function - say what this does here and skip a line Keyword arguments: none print foo = minus(200) plot_me = pack(foo) #print foo print print plot_me if __name__ == __main__: test() ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor Although I didn't test your code, I think what you are trying to accomplish can be done using enumerate cleaner def pack(foo): out = [] for x,y in enumerate(foo, 1): out.append((x,y)) return out Or even cleaner with list comprehension def pack(foo): return [x for x in enumerate(foo, 1)] ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] packing a list of lists
On Fri, Aug 28, 2009 at 10:49 AM, kevin parks k...@me.com wrote: Thanks for the replies. Though the list comprehension does not work: TypeError: enumerate() takes exactly 1 argument (2 given) On Aug 29, 2009, at 12:20 AM, vince spicer wrote: #print foohough I didn't test your code, I think what you are trying to accomplish can be done using enumerate cleaner def pack(foo): out = [] for x,y in enumerate(foo, 1): out.append((x,y)) return out Or even cleaner with list comprehension def pack(foo): return [x for x in enumerate(foo, 1)] ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor What version of python are using, python 2.6+ have a start parameter http://docs.python.org/library/functions.html#enumerate ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Looking up a value in a dictionary from user input problem
On Thu, Aug 6, 2009 at 3:18 PM, chase pettet chase...@gmail.com wrote:
I am trying to write a script to work our LVS implementation. I want to be
able to have user do something like this ./script SITE SERVER and have
the script look up the ip value of the site on that server and issue the
command to pull the status from LVS. I am almost there but for some reason
when I try to pass the site parameter dynamically (the name of the
dictionary) I keep getting errors about value type. I have two example that
work where the dictionary name is hard coded to to speak in the script, and
the value I want to pull is dynamic using sys.argv[1], and one where I'm
trying to pass the dictionary name and it does not work. I tried to slim
thse examples down, so hopefully they are helpful:
works #1...
./script.py t
#!/usr/bin/env python
site = {l:10.1.1.1, t:10.1.1.2, x:10.1.1.3, s1:10.1.1.4,
s2:10.1.1.5, s3:10.1.1.6}
def runBash(cmd):
p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)
out = p.stdout.read().strip()
return out
class LVS_Site:
def show(self, site):
showsite = ipvsadm -L -t %s:443 % (site)
showsiteresult = runBash(showsite)
return showsiteresult
a = LVS_Site()
b = site[%s % (sys.argv[1])]
c = a.show(b)
print
print
print
print c
works #2...
./script.py t
#!/usr/bin/env python
site = {l:10.1.1.1, t:10.1.1.2, x:10.1.1.3, s1:10.1.1.4,
s2:10.1.1.5, s3:10.1.1.6}
def runBash(cmd):
p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)
out = p.stdout.read().strip()
return out
class LVS_Site:
def show(self, site):
showsite = ipvsadm -L -t %s:443 % (site)
showsiteresult = runBash(showsite)
return showsiteresult
a = LVS_Site()
z = site
b = z[%s % (sys.argv[1])]
c = a.show(b)
print
print
print
print c
Not working...
./script.py t site
#!/usr/bin/env python
site = {l:10.1.1.1, t:10.1.1.2, x:10.1.1.3, s1:10.1.1.4,
s2:10.1.1.5, s3:10.1.1.6}
def runBash(cmd):
p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)
out = p.stdout.read().strip()
return out
class LVS_Site:
def show(self, site):
showsite = ipvsadm -L -t %s:443 % (site)
showsiteresult = runBash(showsite)
return showsiteresult
a = LVS_Site()
z = sys.argv[2]
b = b[%s % (sys.argv[1])]
c = a.show(b)
print
print
print
print c
Error:
Traceback (most recent call last):
File ./python2.py, line 22, in ?
b = z[%s % (sys.argv[1])]
TypeError: string indices must be integers
I don't understand why the third one does not work. Thanks for any help!
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In your code
z = sys.argv[2] which is a string
think you want
b = site[z]
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Re: [Tutor] Looking up a value in a dictionary from user input problem
On Thu, Aug 6, 2009 at 3:42 PM, vince spicer vinces1...@gmail.com wrote:
On Thu, Aug 6, 2009 at 3:18 PM, chase pettet chase...@gmail.com wrote:
I am trying to write a script to work our LVS implementation. I want to
be able to have user do something like this ./script SITE SERVER and have
the script look up the ip value of the site on that server and issue the
command to pull the status from LVS. I am almost there but for some reason
when I try to pass the site parameter dynamically (the name of the
dictionary) I keep getting errors about value type. I have two example that
work where the dictionary name is hard coded to to speak in the script, and
the value I want to pull is dynamic using sys.argv[1], and one where I'm
trying to pass the dictionary name and it does not work. I tried to slim
thse examples down, so hopefully they are helpful:
works #1...
./script.py t
#!/usr/bin/env python
site = {l:10.1.1.1, t:10.1.1.2, x:10.1.1.3, s1:10.1.1.4,
s2:10.1.1.5, s3:10.1.1.6}
def runBash(cmd):
p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)
out = p.stdout.read().strip()
return out
class LVS_Site:
def show(self, site):
showsite = ipvsadm -L -t %s:443 % (site)
showsiteresult = runBash(showsite)
return showsiteresult
a = LVS_Site()
b = site[%s % (sys.argv[1])]
c = a.show(b)
print
print
print
print c
works #2...
./script.py t
#!/usr/bin/env python
site = {l:10.1.1.1, t:10.1.1.2, x:10.1.1.3, s1:10.1.1.4,
s2:10.1.1.5, s3:10.1.1.6}
def runBash(cmd):
p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)
out = p.stdout.read().strip()
return out
class LVS_Site:
def show(self, site):
showsite = ipvsadm -L -t %s:443 % (site)
showsiteresult = runBash(showsite)
return showsiteresult
a = LVS_Site()
z = site
b = z[%s % (sys.argv[1])]
c = a.show(b)
print
print
print
print c
Not working...
./script.py t site
#!/usr/bin/env python
site = {l:10.1.1.1, t:10.1.1.2, x:10.1.1.3, s1:10.1.1.4,
s2:10.1.1.5, s3:10.1.1.6}
def runBash(cmd):
p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE)
out = p.stdout.read().strip()
return out
class LVS_Site:
def show(self, site):
showsite = ipvsadm -L -t %s:443 % (site)
showsiteresult = runBash(showsite)
return showsiteresult
a = LVS_Site()
z = sys.argv[2]
b = b[%s % (sys.argv[1])]
c = a.show(b)
print
print
print
print c
Error:
Traceback (most recent call last):
File ./python2.py, line 22, in ?
b = z[%s % (sys.argv[1])]
TypeError: string indices must be integers
I don't understand why the third one does not work. Thanks for any help!
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In your code
z = sys.argv[2] which is a string
think you want
b = site[z]
or even better
b = site.get(z, None)
if b is None:
print Not Found
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Re: [Tutor] Assigning each line of text to a separate variable
On Thu, Jul 30, 2009 at 1:19 PM, Marv Boyes marvbo...@gmail.com wrote:
Hello, all. This is probably embarrassingly basic, but I haven't been able
to find something that works.
I'm working on a script that needs to manipulate a list (not 'list' in the
Python sense) of URLs returned in a server response. Right now, I'm
stripping the XML tags from that response and assigning the resulting list
of URLs to a variable so I can print it in the terminal. So when I do, say,
'print urls' I get something like this:
http://server.com/thing1
http://server.com/thing2
http://server.com/thing3
And so on. What I would _like_ to do is assign each line of that list to a
separate variable, so that I can format my output to be more explicit;
something like this:
Link to Thing1: http://server.com/thing1
Link to Thing2: http://server.com/thing2
And so on. I know this should be extremely easy, but I appear to be having
some manner of mental block. Any and all guidance would be greatly
appreciated; many thanks in advance.
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Hello,
you could use a dictionary to assign a key value and a descrption, but
without seeing some data this is very rough
data = {}
for line in response:
key, value = response.split(,) # line is myname, http://blah.com;
data[key] = value
#then later
for key, value in data.items():
print Link To %s : %s % key, value
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Re: [Tutor] Web crawling!
On Wed, Jul 29, 2009 at 9:59 AM, Raj Medhekar cosmicsan...@yahoo.comwrote: Does anyone know a good webcrawler that could be used in tandem with the Beautiful soup parser to parse out specific elements from news sites like BBC and CNN? Thanks! -Raj ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor I have used httplib2 http://code.google.com/p/httplib2/ to crawl sites(with auth/cookies) and lxml (html xpath) to parse out links. but you could use builtin urllib2 to request pages if no auth/cookie support is required, here is a simple example import urllib2 from lxml import html page = urllib2.urlopen(http://this.page.com http://this.page/) data = html.fromstring(page.read()) all_links = data.xpath(//a) # all links on the page for link in all_links: print link.attrib[href] ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Issues with regex escaping on \{
On Wed, Jul 29, 2009 at 11:35 AM, gpo goodpotat...@yahoo.com wrote:
My regex is being run in both Python v2.6 and v3.1
For this example, I'll give one line. This lines will be read out of log
files. I'm trying to get the GUID for the User ID to query a database with
it, so I'd like a sub match. Here is the code
-
import re
line = 'Checking Privilege for UserId:
{88F96ED2-D471-DE11-95B6-0050569E7C88}, PrivilegeId:
{71AD2527-8494-4654-968D-FE61E9A6A9DF}. Returned hr = 0'
pUserID=re.compile('UserID: \{(.+)\}',re.I) #Sub match is one or more
characters between the first set of squigglies immediately following
'UserID: '
#the output is:
(re.search(pUserID,line)).group(1)
'88F96ED2-D471-DE11-95B6-0050569E7C88}, PrivilegeId:
{71AD2527-8494-4654-968D-FE61E9A6A9DF'
---
Why isn't the match terminating after it finds the first \} ?
--
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your grouping (.+) appears to be greedy, you can make it non-greedy with a
question mark
EX:
pUserID=re.compile('UserID:\s+{(.+?)}',re.I)
Vince
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Re: [Tutor] traversing page and then following the link
there are many ways to parse html pages and retrieve data, I tend to use lxml and xpath to simplify things and urllib to pull down the data lxml is not a core library but can be installed via easy_install, the main benefit is the xpath support = import urllib2 from lxml import html as HTML useragent = Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.1) Gecko/20090716 Ubuntu/9.04 (jaunty) Shiretoko/3.5.1 opener = urllib2.build_opener() main_page = urllib2.Request( http://en.wikipedia.org/wiki/Gallery_of_sovereign-state_flags;) main_page.headers[User-Agent] = useragent #: wikipedia will return a 403 otherwise html = HTML.fromstring(opener.open(main_page).read()) images = html.xpath(//a...@class='image']/img) #: parse all image tags for img in images: url = img.attrib[src].split(/) url.pop(url.index(thumb)) #: remove reference to thumb folder local = open(url[-2], wb) #: open local file url = /.join(url[:-1]) #: cleanup the .png reference print Downloading %s % url imgreq = urllib2.Request(url) imgreq.headers[User-Agent] = useragent local.write(opener.open(imgreq).read()) #: read the remote svg file into local file local.close() On Fri, Jul 24, 2009 at 8:48 AM, davidwil...@safe-mail.net wrote: Hello, I would like to download all the flags from the http://en.wikipedia.org/wiki/Gallery_of_sovereign-state_flags so that I can create a flags sprite from this. The flags seem to follow some order in that all the svg files are in the following pattern: http://en.wikipedia.org/wiki/File:Flag_of_*.svg and then on this page there is the link of the file. I have looked at using Twill to follow each link and record the actual url, but can somone point me at a simpler solution. Dave ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Help with multiple substitution
not perfect or tested but import re chopset.reverse() #: put the longer extensions first exts = |.join([re.escape(x) fro x in chopset)]) for line in file: print exts.sub(, line) On Fri, Jul 24, 2009 at 9:22 AM, vankayala sailakshman sailakshm...@hotmail.com wrote: Hi All, Help needed to write a python script!!! Iam a python newbie and my problem is doing multiple substitution in a text file using Python regular expressions. Here is my following data, I need to chop of all the extensions that are given in the following list and replace with empty string in their position. I have tried to solve for the past two days but couldn't succeed. Any help would be appreciated. Thanks in advance. Sai for example, for “abc22035.pr.1” i need to get “abc22035” chopset = ['.p', '.pr', '.prp', '.prpp', '.ps', '.psp', '.pspp', '.s', '.p.1','.pr.1', '.prp.1', '.prpp.1', '.ps.1', '.psp.1','.pspp.1', '.s.1'] abc22035.pr abc22035.pr.1 abc21409 .ps.1 abc21409.pr.1 abc21154 abc21154.pr.1 abc07584_EAOEA abc07584_EAOEA.ps.1 abc20991.pr abc20991.ps. abc21156 abc21156.ps.1 abc21409 abc21409.ps. abc21156 abc21156.pr.1 abc21408 abc21408.ps.1 abc21370.psp abc21370.pr.1 abc21370 abc21370.ps.1 abc22036 abc22036.pr.1 abc21154 abc21154.ps.1 abc22036.prpp abc22036.ps.1 abc20991 abc20991.pr.1 abc21772 abc21772.pr.1 abc21408 abc21408.pr.1 abc07584_EAOEA abc07584_EAOEA.pr.1 abc21065 -- Videos Get the latest video streams on movies, Try it!http://video.msn.com/?mkt=en-in ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Reading text until a certain point
you can build a dictionary and keep the active key, again this would only
work in predictable data
users = {}
name = None
for line in file:
key, value = [x.strip() for x in line.split(:)]
if key == name:
name = data[1]
users[name] = {}
else:
users[name][data[0]]
users
{stefan: {
id:12345
color:blue
})
Vince
On Fri, Jul 24, 2009 at 9:39 AM, Stefan Lesicnik ste...@lsd.co.za wrote:
Hi Guys,
It seems like this keeps coming up (for me anyways), and i'm never sure how
to do it. I'm very new to programming...
I have a file that has text in a certain format. Lets assume
'''
name: stefan
id: 12345
color: blue
name: joe
id: 54321
color: red
'''
The format is predictable. I understand for non predictable text, you
would have to use pyparser or the like to build a match.
For predictable format, I am never sure how to handle this. I normally use
something like
for line in file:
line.split('\n')
The problem being i dont really do something per line? I would like to say
something like, for line until the next 'name', make that 1 element.
So i would like to then have a list or dict (this probably makes sense for
a dict) with that group. I would then probably split it into various
elements.
So essentially im asking, how do i say the for line until next 'match'.
Would this be something for the re module? Or is there an inbuilt core way?
I hope this makes sense
Thanks!
Stefan
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Re: [Tutor] dictionaries help
this should work
def find_value(value, lst):
for obj in lst:
if value in obj.values():
return obj
find_value(aaa, my_lst)
Vince
On Thu, Jul 23, 2009 at 9:55 AM, davidwil...@safe-mail.net wrote:
hello,
please excuse me, but i would like to understand how dictionaris work.
for example:
my_lst = [{'code': 'aaa', 'name': 'a name'}, {'code': 'bbb', 'name': 'b
name'}]
my_code = 'aaa'
from the above i would like to compare my_code and return the dictionary
which has code == my_code
dave
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Re: [Tutor] decorators, __call__ (able) objects
no the __call__ function can is like any function def __call__(self, passedin): or simply def __call__(self) *args and **kws explained http://www.saltycrane.com/blog/2008/01/how-to- use-args-and-kwargs-in-python/ On Thursday 16 July 2009 12:09:52 am Todd Matsumoto wrote: Thanks guys, In the example the __call__ method has *args and **kws as arguments. Is that required? Also when, in what situation would you use callable objects? Cheers, T Original-Nachricht Datum: Wed, 15 Jul 2009 12:02:05 -0700 Von: wesley chun wes...@gmail.com An: vince spicer vinces1...@gmail.com, tmatsum...@gmx.net CC: Kent Johnson ken...@tds.net, tutor@python.org Betreff: Re: [Tutor] decorators, __call__ (able) objects Can some one give, or point to some good examples of how @decorators work, and __call__ (able) objects? simple example of calling a class class myKlass(object): def __call__(self, *args, **kws): print i was called test = myKlass() test() i was called close. the example was right, but the description wasn't accurate... you meant, calling an instance. i'm going to plagarize and rip this right out of section 14.1.4 from Core Python Programming: Python provides the __call__() special method for classes, which allows a programmer to create objects (instances) that are callable. By default, the __call__() method is not implemented, meaning that most instances are not callable. However, if this method is overridden in a class definition, instances of such a class are made callable. Calling such instance objects is equivalent to invoking the __call__() method. Naturally, any arguments given in the instance call are passed as arguments to __call__(). as far as decorators go, kent's tutorial is great place to start. here are 2 more articles plus PEP 318, where they were defined: http://www.ibm.com/developerworks/linux/library/l-cpdecor.html http://www.artima.com/weblogs/viewpost.jsp?thread=240808 http://www.python.org/dev/peps/pep-0318 in addition, i devoted section 11.3.6 of Core Python to decorators. finally, it should be mentioned that starting in 2.6, you can now decorate *classes*, as seen here in PEP 3129: http://www.python.org/dev/peps/pep-3129/ hope this helps! -- wesley - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Core Python Programming, Prentice Hall, (c)2007,2001 Python Fundamentals, Prentice Hall, (c)2009 http://corepython.com wesley.j.chun :: wescpy-at-gmail.com python training and technical consulting cyberweb.consulting : silicon valley, ca http://cyberwebconsulting.com ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] How to pass command line variables to this python code...
good catch, my mistake args[1] == 'yankees' True On Wed, Jul 15, 2009 at 12:25 AM, Christian Witts cwi...@compuscan.co.zawrote: vince spicer wrote: First off, selenium is a great tool and the python driver is very powerful there are numerous ways to access cli variables, the quickest import sys print sys.srgv sys.argv will it output a array of all command line args ./selenium-google-test.py yankees will out put: ['selenium-google-test.py', 'yankees'] so args = sys.argv args[0] == 'yankees' True That would be false, the first argument (list index zero) is the script name. You would need to do args = sys.argv[1:] if you want to dump the filename from the list. -- Kind Regards, Christian Witts ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] decorators, __call__ (able) objects
simple example of calling a class class myKlass(object): On Wed, Jul 15, 2009 at 6:33 AM, Kent Johnson ken...@tds.net wrote: On Wed, Jul 15, 2009 at 7:41 AM, Todd Matsumototmatsum...@gmx.net wrote: Hi, Can some one give, or point to some good examples of how @decorators work, and __call__ (able) objects? Decorators: http://personalpages.tds.net/~kent37/kk/1.htmlhttp://personalpages.tds.net/%7Ekent37/kk/1.html Kent ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] decorators, __call__ (able) objects
simple example of calling a class class myKlass(object): def __call__(self, *args, **kws): print i was called test = myKlass() test() i was called On Wed, Jul 15, 2009 at 6:33 AM, Kent Johnson ken...@tds.net wrote: On Wed, Jul 15, 2009 at 7:41 AM, Todd Matsumototmatsum...@gmx.net wrote: Hi, Can some one give, or point to some good examples of how @decorators work, and __call__ (able) objects? Decorators: http://personalpages.tds.net/~kent37/kk/1.htmlhttp://personalpages.tds.net/%7Ekent37/kk/1.html Kent ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] just one question
one way is: import re infile = open(test.txt, r) #: open read mode outfile = open(out.tx, w) #: open write mode for line in infile: values = re.split(\s+, line) # split values on spaces EX: ['47', '8', 'ALA', 'H', 'H', '7.85', '0.02', '1'] outfile.write(%s %s C = %s CA = %s CB = %s % (values[1], values[2], values[5], values[6], values[7])) infile.close() outfile.close() not tested but should work Vince On Wed, Jul 15, 2009 at 6:24 AM, amr...@iisermohali.ac.in wrote: Hi, i want to ask one thing that suppose i have a .txt file having content like:--- 47 8 ALA H H 7.85 0.02 1 48 8 ALA HAH 2.98 0.02 1 49 8 ALA HBH 1.05 0.02 1 50 8 ALA C C179.39 0.3 1 51 8 ALA CAC 54.67 0.3 1 52 8 ALA CBC 18.85 0.3 1 53 8 ALA N N123.95 0.3 1 10715 ALA H H 8.05 0.02 1 10815 ALA HAH 4.52 0.02 1 10915 ALA HBH 1.29 0.02 1 11015 ALA C C177.18 0.3 1 11115 ALA CAC 52.18 0.3 1 11215 ALA CBC 20.64 0.3 1 11315 ALA N N119.31 0.3 1 15421 ALA H H 7.66 0.02 1 15521 ALA HAH 4.05 0.02 1 15621 ALA HBH 1.39 0.02 1 15721 ALA C C179.35 0.3 1 15821 ALA CAC 54.33 0.3 1 now what i want that i will make another .txt file in which first it will write the position of ALA lets say 8, 15, 21 then its name ALA and then the fifth column value for only three atoms C,CA and CB. Means it will be someting like: 8 ALA C = 179.39 CA = 54.67 CB = 18.85 15 ALA C = 177.18 CA = 52.18 CB = 20.64 21 ALA C = 179.35 CA = 54.33 CB = if some value is not there then it will leave that as blank.I am new in python but this is what we want, so how can i do it using python script. Amrita Kumari Research Fellow IISER Mohali Chandigarh INDIA ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] decorators, __call__ (able) objects
agreed much better description, thanks On Wed, Jul 15, 2009 at 1:02 PM, wesley chun wes...@gmail.com wrote: Can some one give, or point to some good examples of how @decorators work, and __call__ (able) objects? simple example of calling a class class myKlass(object): def __call__(self, *args, **kws): print i was called test = myKlass() test() i was called close. the example was right, but the description wasn't accurate... you meant, calling an instance. i'm going to plagarize and rip this right out of section 14.1.4 from Core Python Programming: Python provides the __call__() special method for classes, which allows a programmer to create objects (instances) that are callable. By default, the __call__() method is not implemented, meaning that most instances are not callable. However, if this method is overridden in a class definition, instances of such a class are made callable. Calling such instance objects is equivalent to invoking the __call__() method. Naturally, any arguments given in the instance call are passed as arguments to __call__(). as far as decorators go, kent's tutorial is great place to start. here are 2 more articles plus PEP 318, where they were defined: http://www.ibm.com/developerworks/linux/library/l-cpdecor.html http://www.artima.com/weblogs/viewpost.jsp?thread=240808 http://www.python.org/dev/peps/pep-0318 in addition, i devoted section 11.3.6 of Core Python to decorators. finally, it should be mentioned that starting in 2.6, you can now decorate *classes*, as seen here in PEP 3129: http://www.python.org/dev/peps/pep-3129/ hope this helps! -- wesley - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Core Python Programming, Prentice Hall, (c)2007,2001 Python Fundamentals, Prentice Hall, (c)2009 http://corepython.com wesley.j.chun :: wescpy-at-gmail.com python training and technical consulting cyberweb.consulting : silicon valley, ca http://cyberwebconsulting.com ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] How to pass command line variables to this python code...
First off, selenium is a great tool and the python driver is very powerful there are numerous ways to access cli variables, the quickest import sys print sys.srgv sys.argv will it output a array of all command line args ./selenium-google-test.py yankees will out put: ['selenium-google-test.py', 'yankees'] so args = sys.argv args[0] == 'yankees' True for a more functional way, check out http://docs.python.org/library/getopt.html On Tue, Jul 14, 2009 at 11:11 AM, J Cook jcook...@gmail.com wrote: Hello, I have some autogenerated code from Selenium which I cannot figure out how to pass some command line variables to. For example I could export the same in Perl and it would be for example: code use strict; use warnings; use Time::HiRes qw(sleep); use Test::WWW::Selenium; use Test::More no_plan; use Test::Exception; my $sel = Test::WWW::Selenium-new( host = localhost, port = , browser = *chrome, browser_url = http://www.google.com/; ); $sel-open_ok(/); $sel-type_ok(q, red sox); /code I could then go in and add something like: my ($arg1) = shift || default; which would pick up the first command line parameter and then I could do something like: $sel-(type_ok, $arg1); All is good here, now Selenium will export the following for Python: code from selenium import selenium import unittest, time, re class NewTest(unittest.TestCase): def setUp(self): self.verificationErrors = [] self.selenium = selenium(localhost, , *chrome, http://www.google.com/;) self.selenium.start() def test_new(self): sel = self.selenium sel.open(/) sel.type(q, red sox) def tearDown(self): self.selenium.stop() self.assertEqual([], self.verificationErrors) if __name__ == __main__: unittest.main() /code Now I am confused on how to pass a command line parameter here. Any suggestions? I would like to be able to run something like: $ python selenium-google-test.py yankees Suggestions? TIA Justin ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] How to pass command line variables to this python code...
Sorry I do remember that issue in the past, the unittest.main takes over the cli variables in order to select modules to run python selenium-google-test.py --help so unittest is assuming yankees is a test module, you can override this functionality however with: unittest.main(argv=['mytestapp']) this will cause the default run all test modules, and allow you to access the argv Hope that helps Vince On Tue, Jul 14, 2009 at 1:36 PM, J Cook jcook...@gmail.com wrote: Ok, So I added the following: code from selenium import selenium import unittest, time, re import sys # added this q = sys.argv[1] # added this print q # added this just to see class NewTest(unittest.TestCase): def setUp(self): self.verificationErrors = [] self.selenium = selenium(localhost, , *chrome, http://www.google.com/;) self.selenium.start() def test_new(self): sel = self.selenium sel.open(/) sel.type(q, q) # this is where I want the argument to end up def tearDown(self): self.selenium.stop() self.assertEqual([], self.verificationErrors) if __name__ == __main__: unittest.main() /code I run the following: $ python selenium-google-test.py yankees yankees Traceback (most recent call last): File selenium-google-test.py, line 24, in module unittest.main() File /usr/lib/python2.6/unittest.py, line 816, in __init__ self.parseArgs(argv) File /usr/lib/python2.6/unittest.py, line 843, in parseArgs self.createTests() File /usr/lib/python2.6/unittest.py, line 849, in createTests self.module) File /usr/lib/python2.6/unittest.py, line 613, in loadTestsFromNames suites = [self.loadTestsFromName(name, module) for name in names] File /usr/lib/python2.6/unittest.py, line 584, in loadTestsFromName parent, obj = obj, getattr(obj, part) AttributeError: 'module' object has no attribute 'yankees' How do I get the argument over to where I need it to be? Justin vince spicer wrote: First off, selenium is a great tool and the python driver is very powerful there are numerous ways to access cli variables, the quickest import sys print sys.srgv sys.argv will it output a array of all command line args ./selenium-google-test.py yankees will out put: ['selenium-google-test.py', 'yankees'] so args = sys.argv args[0] == 'yankees' True for a more functional way, check out http://docs.python.org/library/getopt.html On Tue, Jul 14, 2009 at 11:11 AM, J Cook jcook...@gmail.com mailto: jcook...@gmail.com wrote: Hello, I have some autogenerated code from Selenium which I cannot figure out how to pass some command line variables to. For example I could export the same in Perl and it would be for example: code use strict; use warnings; use Time::HiRes qw(sleep); use Test::WWW::Selenium; use Test::More no_plan; use Test::Exception; my $sel = Test::WWW::Selenium-new( host = localhost, port = , browser = *chrome, browser_url = http://www.google.com/; ); $sel-open_ok(/); $sel-type_ok(q, red sox); /code I could then go in and add something like: my ($arg1) = shift || default; which would pick up the first command line parameter and then I could do something like: $sel-(type_ok, $arg1); All is good here, now Selenium will export the following for Python: code from selenium import selenium import unittest, time, re class NewTest(unittest.TestCase): def setUp(self): self.verificationErrors = [] self.selenium = selenium(localhost, , *chrome, http://www.google.com/;) self.selenium.start() def test_new(self): sel = self.selenium sel.open(/) sel.type(q, red sox) def tearDown(self): self.selenium.stop() self.assertEqual([], self.verificationErrors) if __name__ == __main__: unittest.main() /code Now I am confused on how to pass a command line parameter here. Any suggestions? I would like to be able to run something like: $ python selenium-google-test.py yankees Suggestions? TIA Justin ___ Tutor maillist - Tutor@python.org mailto:Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] string pickling and sqlite blob'ing
Dinesh In theory you can store in either type(i have done it), however you should store in the binary column, blob Vince On Wed, Jun 24, 2009 at 2:42 PM, Dinesh B Vadhia dineshbvad...@hotmail.comwrote: Hi Vince That's terrific! Once a string is compressed with gzip.zlib does it make a difference whether it is stored it in a TEXT or BLOB column? Dinesh *From:* vince spicer vinces1...@gmail.com *Sent:* Wednesday, June 24, 2009 10:49 AM *To:* Dinesh B Vadhia dineshbvad...@hotmail.com *Cc:* tutor@python.org *Subject:* Re: [Tutor] string pickling and sqlite blob'ing Pickle is more for storing complex objects (arrays, dict, etc). pickling a string makes it bigger. I have stored large text chunks in text and/or blob columns compressed with gzip.zlib.compress and extracted with gzip.zlib.decompress Comparison: import cPickle as Pickle import gzip x = asdfasdfasdfasdfasdfasdfasdfasdfasdf print len(x) 36 print len(Pickle.dumps(x)) 44 print len(gzip.zlib.compress(x)) 14 Vince On Wed, Jun 24, 2009 at 11:17 AM, Dinesh B Vadhia dineshbvad...@hotmail.com wrote: I want to pickle (very long) strings and save them in a sqlite db. The plan is to use pickle dumps() to turn a string into a pickle object and store it in sqlite. After reading the string back from the sqlite db, use pickle loads() to turn back into original string. - Is this a good approach for storing very long strings? - Are the pickle'd strings stored in the sqlite db as a STRING or BLOB? Cheers. Dinesh ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] string pickling and sqlite blob'ing
Pickle is more for storing complex objects (arrays, dict, etc). pickling a string makes it bigger. I have stored large text chunks in text and/or blob columns compressed with gzip.zlib.compress and extracted with gzip.zlib.decompress Comparison: import cPickle as Pickle import gzip x = asdfasdfasdfasdfasdfasdfasdfasdfasdf print len(x) 36 print len(Pickle.dumps(x)) 44 print len(gzip.zlib.compress(x)) 14 Vince On Wed, Jun 24, 2009 at 11:17 AM, Dinesh B Vadhia dineshbvad...@hotmail.com wrote: I want to pickle (very long) strings and save them in a sqlite db. The plan is to use pickle dumps() to turn a string into a pickle object and store it in sqlite. After reading the string back from the sqlite db, use pickle loads() to turn back into original string. - Is this a good approach for storing very long strings? - Are the pickle'd strings stored in the sqlite db as a STRING or BLOB? Cheers. Dinesh ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Trouble with passing commands / variables to os.system()
os.system is not the best way to handle this you may want to look into the subprocess module however: import os username = 'charlie' private_key = '/path/to/key' ssh = '/usr/bin/ssh' command = 'hostname df -h exit' servers = ['172.16.1.1', '172.16.12.2', '172.16.1.3'] for host in servers: os.system(ssh %...@%s -i %s %s %(username, host, private_key, command) On Tue, Jun 23, 2009 at 2:01 PM, Charlie Reddington charlie.redding...@gmail.com wrote: Hi, I'm very very green when it comes to python. I know bash better than python, so I figured a good way to learn things was covert my bash stuff to python. So here goes... Here's a quick example of the code I have that is broken. import os username = 'charlie' private_key = '/path/to/key' ssh = '/usr/bin/ssh' command = 'hostname df -h exit' servers = ['172.16.1.1', '172.16.12.2', '172.16.1.3'] for host in servers: print(os.system(ssh -l username -i private_key host command)) What I'm trying to do is is, is use ssh with a private key. That way I can quickly run some remote commands on a few hundred servers in a quick way to do stuff (disk usage, top, etc). When I run this, I get errors like this for every host in my list. Warning: Identity file private_key not accessible: No such file or directory. ssh: Could not resolve hostname i: nodename nor servname provided, or not known 65280 My first thoughts are, it's not passing my variables to the function the way I'd expect. So my questions are... 1.) Is it nessacary to put my IP's in quotes? 2.) When I call a variable in a function (like os.system() or print()) I don't use $'s right? 3.) Am I putting variables in my functions properly? Can I put variables like this in there? Thanks for any help. Charlie ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] extracting lines in large file
14mb file shouldn't be an issue, unless you very little ram, is there any
errors being outputted?
a cleaner way for reading the file:
for line in open(output.new):
if line.startswith(intrinsic):
print line
On Mon, Jun 22, 2009 at 2:16 PM, Bryan Fodness bryan.fodn...@gmail.comwrote:
I am trying to output all the lines that start with a specific word.
It is a large output file (~14 Mb), but nothing that I thought would
be a problem.
for line in open('output.new'):
i_line = line.split()
if i_line:
if i_line[0] == intrinsic:
print i_line
It does not get all of the lines, it stops at line 130323. There are
~26 line. Is there a limit to the number of lines you can read in
this way, or am I overlooking something else.
Bryan
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Re: [Tutor] Handling Generator exceptions in Python 2.5
Well* *result = [(ListA[i] - ListB[i-1])/ListA[i] for i in range(len(ListA))*if not ListA[i] == 0*] will exclude any results where listA[i] is 0, if you still want these in the result you may want to use good'ol for statement instead of list comprehension results = [] for x in range(len(listA)): y = ListA[i] - ListB[i-1] if not ListA[i] == 0: y = y / ListA[i] results.append(y) print results Vince On Fri, Jun 19, 2009 at 8:55 AM, Joe Python jopyt...@gmail.com wrote: I have a generator as follows to do list calculations. *result = [(ListA[i] - ListB[i-1])/ListA[i] for i in range(len(ListA))]* The above generator, throws '*ZeroDivisionError*' exception if ListA[i] = 0. Is there a way to say 'Don't divide by ListA[i] if its equal to 0 (within that statement)'. Sorry if this question sounds too stupid. TIA Joe ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] New to programming and python first minimilistic program (Bottles of beer), , please comment!
Like in any language there any number for ways, heres another b = bottles of beer w = on the wall bottles = range(1, 101) bottles.reverse() for bottle in bottles: print %s %s %s if one of those bottles should happen to fall there'll be %s %s %s % (bottle, b,w, bottle-1, b,w) Vince 2009/6/17 matthew andriani skellem2...@hotmail.com Hi Guys, I wrote this program for some practice to get into python..I'm trying to find fun ways to learn the language so if anyone has a challenge on this basic level using loops that sounds exciting please let me know.. If you think this program can be improved please let me know too :) b = bottles of beer w = on the wall a = 100 while a != 0: a = a-1 print a,b,w,a,b,if one of those bottles should happen to fall there'll be,a-1,b,w Thanks for the feedback.. Cheers, Skellem. -- What can you do with the new Windows Live? Find outhttp://www.microsoft.com/windows/windowslive/default.aspx ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Simple factorial program
did you declare factorial before trying to use it? factorial = 1 print Factorial finder number = int(input(Please enter a non-negative integer: )) for number in range(number, 1) factorial = (factorial * number) print Factorial:, factorial On Thu, Jun 11, 2009 at 9:53 AM, Eddie eddie9...@gmail.com wrote: I'm trying to write a simple factorial program and am unsure at what is wrong with it. Why Can't I go *factorial = factorial * number* where factorial and number are both integers? #Factorial program print Factorial finder number = input(Please enter a non-negative integer: for number in range(number, 1) factorial = (factorial * number) print Factorial:, factorial Thanks Eddie [?] ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor 330.gif___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Simple factorial program
no : after for statement Vince On Thu, Jun 11, 2009 at 10:06 AM, Eddie eddie9...@gmail.com wrote: Thanks, that is my problem. With that code, why is it giving an error (indenting?) at the end of* for number in range(number, 1) *? 2009/6/12 vince spicer vinces1...@gmail.com did you declare factorial before trying to use it? factorial = 1 print Factorial finder number = int(input(Please enter a non-negative integer: )) for number in range(number, 1) factorial = (factorial * number) print Factorial:, factorial On Thu, Jun 11, 2009 at 9:53 AM, Eddie eddie9...@gmail.com wrote: I'm trying to write a simple factorial program and am unsure at what is wrong with it. Why Can't I go *factorial = factorial * number* where factorial and number are both integers? #Factorial program print Factorial finder number = input(Please enter a non-negative integer: for number in range(number, 1) factorial = (factorial * number) print Factorial:, factorial Thanks Eddie [?] ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor 330.gif___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] improvement of if - else code
you could assign loop variable
@staticmethod
def get_form(address=None, postcode=None, town=None, phone=None,
fax=None,
freephone=None, address_country=None, address_region=None,
address_county=None, hotel=None):
context = get_context()
root = context.root
# List authorized countries
loopvar = root.get_active_countries(context) if hotel else
root.get_authorized_countries(context)
countries = [ {'name': y, 'title': x, 'selected': y ==
address_country} for x, y in loopvar ]
On Thu, Jun 4, 2009 at 11:25 AM, Norman Khine nor...@khine.net wrote:
Hello,
Is there a better way to write this:
@staticmethod
def get_form(address=None, postcode=None, town=None, phone=None,
fax=None,
freephone=None, address_country=None, address_region=None,
address_county=None, hotel=None):
context = get_context()
root = context.root
# List authorized countries
if hotel is True:
countries = [
{'name': y, 'title': x, 'selected': y == address_country}
for x, y in root.get_active_countries(context) ]
else:
countries = [
{'name': y, 'title': x, 'selected': y == address_country}
for x, y in root.get_authorized_countries(context) ]
Thanks
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Re: [Tutor] How o convert spaces into tabs??
regex will do it import re line = re.sub(r\s+, \t, line) print line Vince On Tue, Jun 2, 2009 at 11:42 AM, jyotsna guleria jyotsna.gule...@gmail.comwrote: Hello every one, I am trying to parse a file: I want to convert all the spaces in between the characters to single tab. e.g: my file has contents like: 1G579011 10 2 0 00 0 0 00 5Ht-2 60459 11 0 0 00 0 0 00 I want them to be separated by a single tab not with spaces.. It should look like: 1G5790111020000000 5Ht-2604591100000000 each separated by Tab... It is a text file containing such a data .. Thanks -- Jyotsna Guleria ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] how to get variable from an external script or program
import commands output = commands.getout(ls -lah) Vince On Fri, May 29, 2009 at 3:27 PM, shawn bright neph...@gmail.com wrote: Hey all I have a small program that when run from the command line, will return a certain value for an arguement. Like this: mfetchz 45 45j so the program is mfetchz and the argument is 45 i know i can call the program with os.system(mfetchz 45) but how do i get the return? The OS is linux, if that matters thanks sk ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] how to get variable from an external script or program
Sorry *output import commands output = commands.getoutput(ls -lah) Vince On Fri, May 29, 2009 at 3:27 PM, shawn bright neph...@gmail.com wrote: Hey all I have a small program that when run from the command line, will return a certain value for an arguement. Like this: mfetchz 45 45j so the program is mfetchz and the argument is 45 i know i can call the program with os.system(mfetchz 45) but how do i get the return? The OS is linux, if that matters thanks sk ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] web cam
I've seen this win32 library: http://videocapture.sourceforge.net via http://technobabbler.com?p=22 for linux http://www.antonym.org/libfg Vince 2009/5/20 Ricardo Aráoz ricar...@gmail.com Hi, a friend of mine has asked me how difficult would it be to send web cam images through python program as a hobby project. Honestly, at this point I have no idea where does he want to put python in the equation nor what does the project entail. So I'm asking for pointers to : a) Any already done projects in python b) keywords to google for c) what parts do you think I'll need to put together (web service, client, browser) and which modules do you recommend. I know this is a half baked question, just some pointers on where to start from would be enough. Thanks ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Allow only one instance of a process
simple solution would be to create a lock file before processing, lock = open(videoname.lck) lock.close() On Saturday 16 May 2009 8:26:31 pm Sylvain Ste-Marie wrote: I'm currently writing a script to batch convert video for my psp It basically looks into a folder for video and launch ffmpeg: ffmpeg -i videoname -f psp -r 29.97 -b 768k -ar 24000 -ab 64k -s 368x208 videoname.mp4 my idea is basically to check for pid but how do i do that? ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Python popen command using cat textfile .... how to terminate
Take a peak at commands.getoutput EX: import commmands ls = commands.getoutput(ls- ls) Vince On Thu, May 14, 2009 at 3:50 PM, MK lop...@gmx.net wrote: Hi there, i am using this code to send an cat ThisIsMyUrl with popen. Of cos cat now waits for the CTRL+D command. How can i send this command ? def console_command(cmd): print cmd console = os.popen(cmd,r) output = console.read() console.close() return output command=cat + working_dir + / + subdir + www.thisismyurl.com console_command(command) Thank you. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Sorting a list
you can pass sort a custom compare function Simple ex: def compare(x,y): try: return cmp(int(x), int(y)) except: pass try: int(x) except: return -1 try: int(y) except: return 1 return 0 x = [4, 6, 'word', 3, 9] x.sort(cmp=compare) ['word', 3,4, 6, 9] On Wed, May 13, 2009 at 10:25 AM, Timo timomli...@gmail.com wrote: Hello, I don't think this should be difficult, so maybe I look over it. But I can't seem to find the solution. I have a list with one word and a couple of numbers. Now I want the word to be kept in the first location and the numbers to be sorted. So this: [4, 6, 'word', 3, 9] should be: ['word', 3, 4, 6, 9] Timo ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Advanced String Search using operators AND, OR etc..
Advanced Strings searches are Regex via re module. EX: import re m = re.compile((FDA.*?(approved|supported)|Ben[^\s])*) if m.search(Text): print m.search(Text).group() Vince On Mon, May 4, 2009 at 6:45 AM, Alex Feddor alex.fed...@gmail.com wrote: Hi I am looking for method enables advanced text string search. Method string.find() or re module seems no supporting what I am looking for. The idea is as follows: Text =FDA meeting was successful. New drug is approved for whole sale distribution! I would like to scan the text using AND and OR operators and gets -1 or other value if the searching elements haven't found in the text. Example 01: search criteria: FDA AND ( approve* OR supported) The catch is that in Text variable FDA and approve words are not one after another (other words are in between). Example 02: search criteria: Ben The catch is that code sould find only exact Ben words not also words which that has firts three letters Ben such as Benquick, Benseek etc.. Only Ben is the right word we are looking for. I would really appreciated your advice - code sample / links how above can be achieved! if possible I would appreciated solution achieved with free of charge module. Cheers, Alex PS: A few moths ago I have discovered Python. I am amazed what all can be done with it. Really cool programming language.. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Add newline's, wrap, a long string
first, grabbing output from an external command try:
import commands
USE = commands.getoutput('grep USE /tmp/comprookie2000/emege_info.txt |head
-n1|cut -d\\-f2')
then you can wrap strings,
import textwrap
Lines = textwrap.wrap(USE, 80) # return a list
so in short:
import commands, textwrap
data = textwrap.wrap(commands.getoutput('my command'), 80)
Vince
On Tue, Apr 28, 2009 at 3:43 PM, David da...@abbottdavid.com wrote:
I am getting information from .txt files and posting them in fields on a
web site. I need to break up single strings so they are around 80 characters
then a new line because when I enter the info to the form on the website it
has fields and it errors out with such a long string.
here is a sample of the code;
#!/usr/bin/python
import subprocess
import os
u_e = subprocess.Popen(
'grep USE /tmp/comprookie2000/emerge_info.txt |head -n1|cut -d\\-f2',
shell=True, stdout=subprocess.PIPE,)
os.waitpid(u_e.pid, 0)
USE = u_e.stdout.read().strip()
L = len(USE)
print L
print USE
L returns 1337
Here is what USE returns;
http://linuxcrazy.pastebin.com/m2239816f
thanks
-david
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