[issue24808] PyTypeObject fields have incorrectly documented types
New submission from Joseph Weston: Several fields in the Python 3.x documentation for the PyTypeObject API have incorrectly documented types. This was probably due to a wholesale shift of documentation from Python 2.x. -- assignee: docs@python components: Documentation files: PyTypeObject_documentation.patch keywords: patch messages: 248123 nosy: Joseph Weston, docs@python priority: normal severity: normal status: open title: PyTypeObject fields have incorrectly documented types type: enhancement versions: Python 3.2, Python 3.3, Python 3.4, Python 3.5, Python 3.6 Added file: http://bugs.python.org/file40136/PyTypeObject_documentation.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24808 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
Re: Dictionary help
Steve wrote: I'm currently working on a little database type program is which I'm using a dictionary to store the information. The key is a component a and the definition is a list of parts that make up the component. My problem is I need to list out several components, but not all, and there associated parts to a printer. Not having any luck. I can list them to the screen but not the printer. Any help/ideas would be appreciated. Steve You can do os.system(some printing command; lp fn.txt, etc.) after putting your stuf in a file. -- http://mail.python.org/mailman/listinfo/python-list
Re: python under earthlink hosting?
No, but before I signed up with them I asked if it was available and they said yes. wes mbstevens wrote: I keep chatting with the tech support people at Earthlink, asking where the location of the Python interpreter is. They don't seem to know where it is. They don't know if Python is running on my server, either. I know Perl is at /usr/local/bin/perl ...but when I use a similar address for Python I get a 500 internal server error. Has anyone succeeded in getting Python CGI scripts running on an earthlink hosted site? -- http://mail.python.org/mailman/listinfo/python-list
Re: Parsing HTML--looking for info/comparison of HTMLParser vs. htmllib modules.
from HTMLParser import HTMLParser class MyHTMLParser(HTMLParser): def __init__(self): HTMLParser.__init__(self) self.TokenList = [] def handle_data( self,data): data = data.strip() if data and len(data) 0: self.TokenList.append(data) #print data def GetTokenList(self): return self.TokenList try: url = http://your url here.. f = urllib.urlopen(url) res = f.read() f.close() except: print bad read return h = MyHTMLParser() h.feed(res) tokensList = h.GetTokenList() Kenneth McDonald wrote: I'm writing a program that will parse HTML and (mostly) convert it to MediaWiki format. The two Python modules I'm aware of to do this are HTMLParser and htmllib. However, I'm currently experiencing either real or conceptual difficulty with both, and was wondering if I could get some advice. The problem I'm having with HTMLParser is simple; I don't seem to be getting the actual text in the HTML document. I've implemented the do_data method of HTMLParser.HTMLParser in my HTMLParser subclass, but it never seems to receive any data. Is there another way to access the text chunks as they come along? HTMLParser would probably be the way to go if I can figure this out. It seems much simpler than htmllib, and satisfies my requirements. htmllib will write out the text data (using the AbstractFormatter and AbstractWriter), but my problem here is conceptual. I simply don't understand why all of these different levels of abstractness are necessary, nor how to use them. As an example, the html itext/i should be converted to ''text'' (double single-quotes at each end) in my mediawiki markup output. This would obviously be easy to achieve if I simply had an html parse that called a method for each start tag, text chunk, and end tag. But htmllib calls the tag functions in HTMLParser, and then does more things with both a formatter and a writer. To me, both seem unnecessarily complex (though I suppose I can see the benefits of a writer before generators gave the opportunity to simply yield chunks of output to be processed by external code.) In any case, I don't really have a good idea of what I should do with htmllib to get my converted tags, and then content, and then closing converted tags, written out. Please feel free to point to examples, code, etc. Probably the simplest solution would be a way to process text content in HTMLParser.HTMLParser. Thanks, Ken -- http://mail.python.org/mailman/listinfo/python-list
Can PyObjC be used on shared Mac OS X hosting?
Does anyone have experience with (or failing that, theoretical knowledge about) installing using the PyObjC bridge on a Mac OS X machine in a context where one doesn't have root/admin access (and therefore can't install things in conventional locations)? Can such a thing be done? -- http://mail.python.org/mailman/listinfo/python-list
Re: Class probkem - getting msg that self not defined
Andrew Robert wrote: Hi Everyone, I am having a problem with a class and hope you can help. When I try to use the class listed below, I get the statement that self is not defined. test=TriggerMessage(data) self is not known here; only inside the class. var = test.decode(self.qname) I would have thought that self would have carried forward when I grabbed an instance of TriggerMessage. Any ideas on this? The class in question is: class TriggerMessage(object): def __init__(self,data): Unpacks the passed binary data based on the MQTCM2 format dictated in the MQ Application Programming Reference self.data=data self.structid=None self.version=None self.qname=None self.procname=None self.trigdata=None self.appltype=None self.applid=None self.envdata=None self.userdata=None self.qmgr=None def decode(self): import struct format='4s 4s 48s 48s 64s 4s 256s 128s 128s 48s' size=struct.calcsize(format) self.data=data self.structid, self.version, self.qname, self.processname, \ self.triggerdata, self.appltype, self.applid, \ self.envdata, self.userdata, self.qmgr \ = struct.unpack(format,self.data) -- http://mail.python.org/mailman/listinfo/python-list
Re: Class probkem - getting msg that self not defined
Andrew Robert wrote: wes weston wrote: Andrew Robert wrote: Hi Everyone, I am having a problem with a class and hope you can help. When I try to use the class listed below, I get the statement that self is not defined. test=TriggerMessage(data) self is not known here; only inside the class. var = test.decode(self.qname) snip I guess I was barking up the wrong tree on that one. How would I go about getting the required values out of the class? Return self? You can refer to the variables inside the class as test.version; for example - as they are not protected. Or, you could add access methods in the class like def GetVersion(self): return self.version If you want to protect version, call it self.__version which mangles the name from outside. wes -- http://mail.python.org/mailman/listinfo/python-list
Re: Basic coin flipper program - logical error help
DannyB wrote: I'm just learning Python. I've created a simple coin flipper program - here is the code: [source] #Coin flipper import random heads = 0 tails = 0 counter = 0 coin = random.randrange(2) while (counter 100): if (coin == 0): heads += 1 counter += 1 else: tails += 1 counter += 1 coin = random.randrange(2) print \nThe coin landed on heads, heads, times. print \nThe coin landed on tails, tails, times. [/source] I'm sure the [source] tags don't work - I through them in there anyway. The program runs - however - it will give me 100 heads OR 100 tails. Can someone spot the logic error? Thanks ~Dan Dan, Looping is easier with: for x in range(100): if random.randint(0,1) == 0: heads += 1 else: tails += 1 Inside the loop you need to flip on each pass. You're flipping once before the start of the loop now. wes -- http://mail.python.org/mailman/listinfo/python-list
Re: Walking through a mysql db
Jeff Elkins wrote: I'm writing a small wxpython app to display and update a dataset. So far, I get the first record for display: try: cursor = conn.cursor () cursor.execute (SELECT * FROM dataset) item = cursor.fetchone () Now, how do I step through the dataset one row at a time? My form has 'next' and 'back' buttons, and I'd like them to step forward or back, fetching the appropriate row in the table. I've tried setting cursor.rownumber by incrementing it prior to the fetchone() w/o effect. Thanks for any pointers. Jeff Elkins Jeff, You just check for a fetchone return of None. list is a list of tuples here. ... cursor.execute( sql ) list = [] while 1: row = cursor.fetchone() if not row: break list.append(row) ... wes -- http://mail.python.org/mailman/listinfo/python-list
Looking for Example of wxFontEnumerator Use
Can anyone give an example of proper usage of wxFontEnumerator? Thanks, Weston -- http://mail.python.org/mailman/listinfo/python-list
Re: Trouble Installing TTX/FontTools (asks for .NET Framework Packages)
This problem may be addressed here: http://sourceforge.net/mailarchive/message.php?msg_id=1702374 Apparently setup.py tries to compile a c file, which of course doesn't work if there's no compiler. -- http://mail.python.org/mailman/listinfo/python-list
Trouble Installing TTX/FontTools (asks for .NET Framework Packages)
I'm trying to install FontTools (a library for manipulating fonts, written in Python) on a Win XP box, and I'm given a bit of pause that this process seems to require downloading some MS .NET framework packages -- at least, this is what the setup.py script has told when I've tried to run it: error: The .NET Framework SDK needs to be installed before building extensions for Python. Hmmm. It gets a bit worse, too. If one searches for the .NET Framework SDK, one arrives at a page on the Microsoft site which states: You must install the .NET Framework Redistributable Package version 1.1 prior to installing the Microsoft .NET Framework SDK version 1.1. Is this really the case? It seems odd that a python library would require anything related to .NET. Could I have messed up somewhere in the installation process? -- http://mail.python.org/mailman/listinfo/python-list
Re: Rotating arbitrary sets of elements within a list
[EMAIL PROTECTED] wrote: I'm trying to come up with a good algorithm to do the following: Given a list 'A' to be operated on, and a list 'I' of indices into 'A', rotate the i'th elements of 'A' left or right by one position. Here's are some examples: A = [a, b, c, d, e, f] I = [0, 3, 4] rotate(A, I, 'left') -- [b, c, d, e, f, a] rotate(A, I, 'right') -- [b, a, c, f, d, e] I = [1, 3, 4] rotate(A, I, 'left') -- [b, a, d, e, c, f] rotate(A, I, 'right') -- [a, c, b, f, d, e] Any ideas? phil, Could you do a circlular buffer where the front starts at 'a' (0) and rotate left increments front. The i'th element is gotten as mod 6 (front+i) where 6 would be the length of the list. wes -- http://mail.python.org/mailman/listinfo/python-list
Re: Rotating arbitrary sets of elements within a list
[EMAIL PROTECTED] wrote:
I'm trying to come up with a good algorithm to do the following:
Given a list 'A' to be operated on, and a list 'I' of indices into 'A',
rotate the i'th elements of 'A' left or right by one position.
Here's are some examples:
A = [a, b, c, d, e, f]
I = [0, 3, 4]
rotate(A, I, 'left') -- [b, c, d, e, f, a]
rotate(A, I, 'right') -- [b, a, c, f, d, e]
I = [1, 3, 4]
rotate(A, I, 'left') -- [b, a, d, e, c, f]
rotate(A, I, 'right') -- [a, c, b, f, d, e]
Any ideas?
class CBuf:
def __init__(self,list=[]):
self.List = list
self.Front = 0
def ActualIndexGet(self,index):
return (self.Front + index) % len(self.List)
def ValueGet(self,index):
return self.List[self.ActualIndexGet(index)]
def Rotate(self,dir):
if dir == 'L':
self.Front += 1
else:
self.Front -= 1
self.Front = self.Front % len(self.List)
def Show(self):
i = self.Front
while 1:
print self.List[i], ,
i = (i+1) % len(self.List)
if i == self.Front:
break
print
b = CBuf(['a','b','c','d','e','f'])
b.Show()
b.Rotate('L')
b.Show()
b.Rotate('L')
b.Show()
RESTART
a b c d e f
b c d e f a
c d e f a b
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Re: MySQL problem
Dennis Lee Bieber wrote: On Thu, 17 Mar 2005 16:45:57 GMT, wes weston [EMAIL PROTECTED] declaimed the following in comp.lang.python: str = INSERT INTO produkt1 (MyNumber) VALUES(%d) % (MyNumber) cursor.execute(str) Think you meant MyValue for the second item... However... Try neither, the recommended method is to let the execute() do the formatting... That way /it/ can apply the needed quoting of arguments based upon the type of the data. cursor.execute(insert into produkt1 (MyNumber) values (%d), (MyValue)) Dennis, Do you know if this has some efficiency advantage or is it just an agreed upon custom. wes -- http://mail.python.org/mailman/listinfo/python-list
Re: MySQL problem
Lad wrote: I have the following program( only insert a record) import MySQLdb conn = MySQLdb.connect (host = localhost,user = , passwd = ,db=dilynamobily) cursor = conn.cursor () cursor.execute(CREATE TABLE produkt1 ( id int(10) unsigned NOT NULL auto_increment, MyNumber varchar(30) NOT NULL default '', PRIMARY KEY (id)) ) #MyValue=111 cursor.execute (INSERT INTO produkt1 (MyNumber) VALUES(111) ) # It works. But If I change the program like the following ( only use a variable MyValue in INSERT statement it does not work. ##THIS DOES NOT WORK import MySQLdb,re,string conn = MySQLdb.connect (host = localhost,user = , passwd = ,db=dilynamobily) cursor = conn.cursor () cursor.execute(CREATE TABLE produkt1 ( id int(10) unsigned NOT NULL auto_increment, MyNumber varchar(30) NOT NULL default '', PRIMARY KEY (id)) ) MyValue=111 cursor.execute (INSERT INTO produkt1 (MyNumber) VALUES(MyValue) ) # Program says OperationalError: (1054, Unknown column 'MyValue' in 'field list') Where is a problem. Thanks for help Lad. Lad, Try str = INSERT INTO produkt1 (MyNumber) VALUES(%d) % (MyNumber) cursor.execute(str) wes -- http://mail.python.org/mailman/listinfo/python-list
Re: Simple account program
Igorati wrote:
Hello all, I am still needing some help on this code, I have gone a bit
further on it. Thank you for the help. I am trying to understand how to
make the file searchable and how I am to make the deposit and withdrawl
interact with the transaction class.
I need to just search the file only for the deposits and withdrawls and
the amount in the account with a time stamp. Thank you for your
assistance.
class Account:
def __init__(self, initial):
self.balance = initial
def deposit(self, amt):
self.balance = self.balance + amt
def withdraw(self, amt):
self.balance = self.balance - amt
def getbalance(self):
return self.balance
class Transactoin:
def transaction(self,
self.transaction =
import time
time.asctime()
raw_input(Is this a deposit or withdrawl?)
if withdrawl:
elif
raw_input(Please enter amount here.)
class Deposit(Transaction):
def deposit(self, amt):
self.balance = self.balance + amt
def getbalance(self):
return self.balance
class Withdrawl(Trasaction):
def withdrawl(self, amt):
self.balance = self.balance - amt
def getbalance(self):
return self.balance
import pickle
pickle.dump ((withdrawl), file ('account.pickle', 'w'))
pickle.dump ((deposit), file ('account.pickle', 'w'))
print Your current account total is., self.balance
Igorati,
Suggestion. Write out what you want to do in
words such that all the things you want to do are
there as unambiguously clear as you can get it.
It will help your thinking on the problem, the
design, and the code; and help anyone trying to
help you.
Why have transactions not associated with accounts?
All transactions are related to an account; have
a self.TransActList in Account.
You have amount in both Withdrawl and Deposit
both derived from Transaction. If Transactions always
have an amount, why not put amount in the transactions
class? But we don't know.
wes
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Re: What's the cost of using hundreds of threads?
Przemysaw Rycki wrote:
Hello,
I have written some code, which creates many threads for each connection
('main connection'). The purpose of this code is to balance the load
between several connections ('pipes'). The number of spawned threads
depends on how many pipes I create (= 2*n+2, where n is the number of
pipes).
For good results I'll presumably share main connection's load between 10
pipes - therefore 22 threads will be spawned. Now if about 50
connections are forwarded the number of threads rises to thousand of
threads (or several thousands if even more connections are established).
My questions are:
- What is the cost (in memory / CPU usage) of creating such amounts of
threads?
- Is there any 'upper boundary' that limits the number of threads? (is
it python / OS related)
- Is that the sign of 'clumsy programming' - i.e. Is creating so many
threads a bad habit? (I must say that it simplified the solution of my
problem very much).
Limiting the number of threads is possible, but would affect the
independence of data flows. (ok I admit - creating tricky algorithm
could perhaps gurantee concurrency without spawning so many threads -
but it's the simplest solution to this problem :) ).
PR,
I notice there's a resource module with a
getrusage(who) that looks like it would support
a test to get what you need.
wes
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Re: String Replace Problem...
[EMAIL PROTECTED] wrote: Hello NG, probably this is a basic question, but I'm going crazy... I am unable to find an answer. Suppose that I have a file (that I called Errors.txt) which contains these lines: MULTIPLY 'PERMX' @PERMX1 1 34 1 20 1 6 / 'PERMX' @PERMX2 1 34 21 41 1 6 / 'PERMX' @PERMX3 1 34 1 20 7 14/ 'PERMX' @PERMX4 1 34 21 41 7 14/ 'PERMX' @PERMX5 1 34 1 20 15 26/ 'PERMX' @PERMX6 1 34 21 41 15 26/ 'PERMX' @PERMX7 1 34 1 20 27 28/ 'PERMX' @PERMX8 1 34 21 41 27 28/ 'PERMX' @PERMX9 1 34 1 20 29 34/ 'PERMX' @PERMX10 1 34 21 41 29 34/ 'PERMX' @PERMX11 1 34 1 20 35 42/ 'PERMX' @PERMX12 1 34 21 41 35 42/ 'PERMX' @PERMX13 1 34 1 20 43 53/ 'PERMX' @PERMX14 1 34 21 41 43 53/ 'PERMX' @PERMX15 1 34 1 20 54 61/ 'PERMX' @PERMX16 1 34 21 41 54 61/ / I would like to replace all the occurrencies of the keywords (beginning with the @ (AT) symbol) with some floating point value. As an example, this is what I do: # --- CODE BEGIN import re import string # Set Some Dummy Parameter Values parametervalues = range(1, 17) # Open And Read The File With Keywords fid = open(Errors.txt,rt) onread = fid.read() fid.close() # Find All Keywords Starting with @ (AT) regex = re.compile([EMAIL PROTECTED], re.IGNORECASE) keywords = regex.findall(onread) counter = 0 # Try To Replace The With Floats for keys in keywords: pars = parametervalues[counter] onread = string.replace(onread, keys, str(float(pars))) counter = counter + 1 # Write A New File With Replaced Values fid = open(Errors_2.txt,wt) fid.write(onread) fid.close() # --- CODE END Now, I you try to run this little script, you will see that for keywords starting from @PERMX10, the replaced values are WRONG. I don't know why, Python replace only the @PERMX1 leaving out the last char of the keyword (that are 0, 1, 2, 3, 4, 5, 6 ). These values are left in the file and I don't get the expected result. Does anyone have an explanation? What am I doing wrong? Thanks to you all for your help. Andrea. -- Message for the recipient only, if received in error, please notify the sender and read http://www.eni.it/disclaimer/ andrea, If you put in keywords.reverse() after getting keywords, things may work better. Though not a good fix, it illustrates part of the problem. If you replace @PERMX1 you also replace part of @PERMX10. Wouldn't it be better to read the file as lines instead of strings? wes -- http://mail.python.org/mailman/listinfo/python-list
Re: broke tkinter
Philippe C. Martin wrote: Hi, I decided to clean my system and rebuild python from scratch. I downloaded tk8.4.9, tcl8.4.9 and Python2-4.tar.bz2. I installed tcl then tk using './configure --prefix=/usr' tkcvs is now working OK trying to compile python (configure = './configure --prefix=/usr', I get this: In file included from /home/philippe/downloaded/Python-2.4/Modules/_tkinter.c:67: /usr/include/tk.h:337: error: syntax error before CONST84 In file included from /usr/include/tk.h:1576, from /home/philippe/downloaded/Python-2.4/Modules/_tkinter.c:67: Any clue! Regards, Philippe Phillipp, Might you be getting the wrong header file/tk version? http://wiki.tcl.tk/3669 talks about it. wes -- http://mail.python.org/mailman/listinfo/python-list
Re: Where are list methods documented?
Grant Edwards wrote: I'm trying to figure out how to sort a list, and I've run into a problem that that I have tripped over constantly for years: where are the methods of basic types documented? The only thing I can find on a list's sort() method is in the tutorial where it states: sort() Sort the items of the list, in place. Doesn't the list method would accept a callable to be used as a comparison function? Where is that sort of thing in the documentation? I've looking in the library reference, the language reference, the global module index. I have figured out I can do list.sort.__doc__ 'L.sort(cmpfunc=None) -- stable sort *IN PLACE*; cmpfunc(x, y) - -1, 0, 1' Grant, For a quick, short doc string list: help(list) wes -- http://mail.python.org/mailman/listinfo/python-list
Re: How do you do arrays
Thomas Bunce wrote: I am new at Pyton and I am learning from book not classes so please forgive my being slow The below does not work I get an Error of File Matrix[index] = k NameError: name 'iMatrix' is not defined while index majorlop1: index = index + 1 k = random.choice(listvalues) + 1 iMatrix[index] = k The book statement of array(typecode, initializer) does not make sence to me how it henerates ore relaes to the org name for the array. Thank You Tom Thomas, You can do m = [4] m [4] wes -- http://mail.python.org/mailman/listinfo/python-list
Re: How do you do arrays
Thomas,
If you were allowed to do what you're doing, the
list first element would be getting skipped as index
is always 0. The thing is, you don't want the index
var at all for adding to the list; just do jMatrix.append(k).
You can iterate over the list with
for x in jMatrix:
print x
Is it basic that indexes from 1 vs. 0? 'just about
completely forgotten basic.
wes
Thomas Bunce wrote:
Tryed it and this is what I got (I did go to the web sight)
tom(h=500)$ /tmp/501/Cleanup\ At\ Startup/ptesting-128981347.87.py.command; exit
Input the maximu number of tvalue: 114
Traceback (most recent call last):
File /Users/tom/Desktop/ptesting.py, line 20, in ?
iMatrix[index] = k
IndexError: list assignment index out of range
logout
[Process completed]
The complete listing:
#!/usr/bin/python
import random
import sys
import array
#
### generates a list of numbers between 1 and target
### and uses 23 % of these values.
#
iMatrix = []
tvalue = input('Input the maximu number of tvalue: ')
majorlop1 = int tvalue * .23)
listvalues = range(tvalue)
sep = '- '
index = 0
while index majorlop1:
index = index + 1
k = random.choice(listvalues) + 1
iMatrix[index] = k
while index majorlop1:
print '- %s %s' % (iMatrix[index], sep)
#
###
#
I would like to set the size of the List/array independent
of having to intialialize it prior to use.
If it help I will say the bad works I am using OSX
Thanks Tom
In article [EMAIL PROTECTED],
Kartic [EMAIL PROTECTED] wrote:
Tom,
Before you use iMatrix[index], you have to tell python to use iMatrix
as an array. You will do that using iMatrix = [] *outside* the loop.
iMatrix = []
while index majorlop1: # rest of the loop statements
Since you are new, please take a look at the Python tutorial to get you
started.
http://docs.python.org/tut/tut.html
Thanks,
-Kartic
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Re: Where can I find sample beginner programs to study?
Todd_Calhoun wrote: I'm trying to learn Python (and programming), and I'm wondering if there are any places where I can find small, simple programs to study. Thanks. Todd, Have you been here: http://www.python.org/doc/ and tried the tutorial or beginners guide? The tutorial has all the pieces you use most often. wes -- http://mail.python.org/mailman/listinfo/python-list
Re: A completely silly question
Amir Dekel wrote: Harlin Seritt wrote: Simple, Simple, Simple: Var = raw_input(Some prompting text here: ) Frans Englich wrote: See sys.stdin What I need from the program is to wait for a single character input, something like while(getchar()) in C. All those Python modules don't make much sence to me... Amir Amir, import tkSimpleDialog ch = tkSimpleDialog.askstring(,ch?) wes -- http://mail.python.org/mailman/listinfo/python-list
Re: Question on sorting
Lad wrote:
Hi,
I have a file of records of 4 fields each.
Each field is separated by a semicolon. That is
Filed1;Ffield2;Field3;Field4
But there may be also empty records such as
(only semicolons).
For sorting I used
#
lines = file('Config.txt').readlines()# a file I want to sort
lines.sort()
ff=open('ConfigSorted.txt','w')# sorted file
ff.writelines(lines)
ff.close()
###
It was sorted but empty records were first. I need them to be last(at
the end of the file). How can I do that?
Thanks for help
Lad
Lad,
The sort call can have a function name as an arg. You
could do:
def mycompare(s1,s2):
#return -1 to put s1's at front; 1 to put s1's at back; 0 for a tie
#if s1== and s2: return 1
lines.sort(mycompare)
wes
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