[Tutor] MySQLdb install issue
Hello, Does anyone know how to install MySQLdb into a python installation when the machine you are working on does not have MySQL installed? I.E. the MySQL installation is on a different server, but the site.cfg file for the MySQLdb installation asks for the location of the mysql_config: # The path to mysql_config. # Only use this if mysql_config is not on your PATH, or you have some weird # setup that requires it. #mysql_config = /usr/local/bin/mysql_config Thanks! -- Configuration `` Plone 2.5.3-final, CMF-1.6.4, Zope (Zope 2.9.7-final, python 2.4.4, linux2), Five 1.4.1, Python 2.4.4 (#1, Jul 3 2007, 22:58:17) [GCC 4.1.1 20070105 (Red Hat 4.1.1-51)], PIL 1.1.6 ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Read protection of python files for Abaqus
Dear Sir; Thank you very much for the information. After I read your e-mail, I have started to think that our codes are not highly but moderately valuable. Therefore, I am satisfied, by using .pyc files. I am not very affraid of determined hackers from outside because they will not understand the usage of my application and a hardcopy of the codes will always be in my handbag. Best Regards Ferruh Kayhan -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Michael Langford Sent: Monday, January 14, 2008 5:33 PM To: Ferruh KAYHAN Cc: tutor@python.org Subject: Re: [Tutor] Read protection of python files for Abaqus I know there are a lot of people who are very much for code openness in all cases. I'm from a couple worlds that's not even something you'd think about doing (military software, where people die if the other side gets your code, and embedded software, where a company in china copies your design and puts you out of business), so you have to work within this sometimes. That said, many companies *vastly* overvalue their code base, especially the great balance of it, when really 4-10 modules are the only valuable parts. There are obfuscators that generally work for python and then only shipping .pyc files (as someone suggested above) helps as well. If the code really is that valuable, I doubt you're going to be able to hide it well enough a determined, an attacker with a skill level equal to many of the people on this list, couldn't extract your algorithms. I'm am not saying .NET is any more secure in that than python is either. Just introspective languages (Java too), have this issue where they're quite a bit easier to reverse engineer. Assuming its only moderately valuable, then the steps above should be enough. You may think about isolating the highly valuable algorithm in a C module then highly optimizing it and running a stripper on it. Then connect it up to your python code with SWIG. That will defeat the introspection attacks (they'll only be able to see the interface of the C module), and the high levels of optimization in the C code (which you should strip) will hide the algorithm further. Another possibility is refactoring your algorithm into a code generating utility which you don't let leave your facility. The generated code will work, but is not reverse engineerable, as its just something like a massive lookup table, or a series of decomposed functions. I've been the guy attacking code before. It all boils down to the safe/lock issue: Locks and safes aren't there to keep people out forever, every good lock and safe has an amount of time they expect to keep people out. You have to have a security guard or something else at that point to safeguard your valuables. Pick locks that are good enough, and try to remove the incentives and abilities to break in other ways. --Michael PS: I would like to point out. These other people will be able to *call* your highly proprietary code no matter what you do. So if nothing else, a determined attacker can just call your code again without understanding it. -- Michael Langford Phone: 404-386-0495 Consulting: http://www.RowdyLabs.com On 1/14/08, Ferruh KAYHAN [EMAIL PROTECTED] wrote: Dear Sir; Thank you for your reply. Oftenly, especially in industrial companies, codes are becoming very valuable and owner of the company likes to keep that value as confidential in order to protect the company competitivness. Somr times, professionals are leaving companies and starting new jobs in competitor companies. Therefore, protecting some codes are becoming important. So in our case, we are not trying to stop anybody learning python language but we are trying to protect what we are doing with python. I hope my reply is sufficient. Regards -Original Message- From: bhaaluu [mailto:[EMAIL PROTECTED] Sent: Monday, January 14, 2008 3:25 PM To: Ferruh KAYHAN Cc: tutor@python.org Subject: Re: [Tutor] Read protection of python files for Abaqus Greetings, On Jan 14, 2008 3:17 AM, Ferruh KAYHAN [EMAIL PROTECTED] wrote: Dear Sirs; Good morning. I do not like abaqus users will read my python file codes. How can I protect my codes from reading ans still workable by Abaqus import?? Best Regards Ferruh Kayhan quote source=wikipedia?ABAQUS Abaqus is widely used in the automotive, aerospace, and industrial products industries. The package is very popular with academic and research institutions ... These software products, especially Abaqus/CAE, extensively use the open-source scripting language Python for scripting and customization. /quote Don't academics and researchers thrive on sharing information? Also, this forum is geared towards learning Python, and sharing source code is encouraged in order to obtain help. Also, many eyes can find and fix bugs in your scripts, as well as, others may find the scripts useful: ie. research can advance more quickly.
Re: [Tutor] MySQLdb install issue
There is at least on client library that the mysql package needs to link against. You either need to install the libraries on the client machine or else build the package statically linked on the server machine and move it over prebuilt. John wrote: Hello, Does anyone know how to install MySQLdb into a python installation when the machine you are working on does not have MySQL installed? I.E. the MySQL installation is on a different server, but the site.cfg file for the MySQLdb installation asks for the location of the mysql_config: # The path to mysql_config. # Only use this if mysql_config is not on your PATH, or you have some weird # setup that requires it. #mysql_config = /usr/local/bin/mysql_config Thanks! -- Configuration `` Plone 2.5.3-final, CMF-1.6.4, Zope (Zope 2.9.7-final, python 2.4.4, linux2), Five 1.4.1, Python 2.4.4 (#1, Jul 3 2007, 22:58:17) [GCC 4.1.1 20070105 (Red Hat 4.1.1-51)], PIL 1.1.6 ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] A faster x in S
For some significant data pre-processing we have to perform the following simple process: Is the integer x in a list of 13K sorted integers. That's it except this has to be done 100m times with different x's (multiple times). Yep, a real pain! I've put the 13K integers in a list S and am using the is 'x in S' function. I was wondering if there is anything faster? Dinesh ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] tree/node class/module
hello, I'm wanting to do a GUI for to help people using rsync, du, tar . it will provide the --exclude and --include of them. And I thought that the best way to store data relative to the hierarchy filesystem was to store them in a tree structure. But after browsing ages on the web, I didn't found any class/modules which implements trees, with some comments, and small examples. Am I just blind ??? I'm looking for a tree of object which will give me stuff like: - sibling - parent - children - find - insert Do you have any pointers ?? Ced. -- Cedric BRINER Geneva - Switzerland ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] A faster x in S
Dinesh B Vadhia wrote: For some significant data pre-processing we have to perform the following simple process: Is the integer x in a list of 13K sorted integers. That's it except this has to be done 100m times with different x's (multiple times). Yep, a real pain! I've put the 13K integers in a list S and am using the is 'x in S' function. I was wondering if there is anything faster? Yes. Put the integers in a set and test for membership there. If for some reason the integers have to be in a list, and the list is sorted, use the bisect module to do a binary search, rather than the linear search used by 'x in S'. http://docs.python.org/lib/module-bisect.html Kent ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Reading Input Data
Accidentally cut off a 0 there...
Think about using ConfigParser instead of your csv. Doug Hellman wrote
a good article on that:
http://blog.doughellmann.com/2007/04/pymotw-configparser.html
But if you really want to load your data this way, this will work:
for subscript,line in enumerate(file(file.csv)):
s = line.split(,)[1]
try:
f = float(s)
locals()[x%i % subscript]=f
except:
locals()[x%i % subscript]=s
print x1
print x0
On Jan 15, 2008 3:47 PM, Michael Langford [EMAIL PROTECTED] wrote:
for subscript,line in enumerate(file(file.csv)):
s = line.split(,)[1]
try:
f = float(s)
locals()[x%i % subscript]=f
except:
locals()[x%i % subscript]=s
print x1
print x
On Jan 15, 2008 3:26 PM, lechtlr [EMAIL PROTECTED] wrote:
I want to read an input file (file.csv) that has two columns. I want to read
2nd column and assign variables that are strings and floats. Currently, I
use the following split() function to read from the input file and create a
list, and then assign each element to a variable.
I am wondering there is any other easier (and elegant) way of doing this ?
data = []
for line in open(file.csv):
columns = line.split(',')
data.append([columns[1]])
This script returns, say:
data = [ ['20.0'], ['0.34'], ,[ 'a:0.20, b:0.30, c:0.50' ]]
Then, I assign to a set of variables, say:
x1 = float(data[0][0]) ; x2 = float(data[1][0]);.;xn =
data[-1][0]
Thanks,
Lex
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Phone: 404-386-0495
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--
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Phone: 404-386-0495
Consulting: http://www.RowdyLabs.com
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Re: [Tutor] Reading Input Data
Michael Langford wrote: for subscript,line in enumerate(file(file.csv)): s = line.split(,)[1] try: f = float(s) locals()[x%i % subscript]=f except: locals()[x%i % subscript]=s Don't do this! For one thing, writing to locals() doesn't always work. Specifically, writing to locals() inside a function does *not* affect the local namespace: In [28]: def foo(): : locals()['x'] = 1 : print x : : In [29]: foo() Traceback (most recent call last): File ipython console, line 1, in module File ipython console, line 3, in foo type 'exceptions.NameError': global name 'x' is not defined Writing to globals() might be marginally better but not much. (When not in a function, locals() is actually the same as globals() and the above code will work.) In most cases where someone is trying to assign a bunch of names like this, a better solution is to use a dictionary (or possibly a list) to hold the data. Kent ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] Input
Last week someone had an issue with raw_input() and how to get input for
a number. So I remembered my CP/M times and got to think of a little
function I had there. The function is lost and my time is scarce but I
made a little effort and here you have the results. It has loads of room
for improvement and probably a few bugs but it's a starting point, and
it should guarantee that you get the input you need.
You just define your mask and the functions checks the input
accordingly, it returns a string.
You might improve it by displaying the mask, e.g. for mask = '.99'
you might see in the screen .__ or for mask = '999-AAA::' you'd
see ___-___::___ so the user will know the format of what's expected of
him, also a beep on incorrect entry might prove nice.
HTH
---
import msvcrt
_validChars = {
'X' :
'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890'
, '9' : '1234567890'
, '-' : '-1234567890'
, 'A' :
'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
, '!' : 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'}
_validKeys = _validChars.keys()
def maskInput(mask, separators = True) :
lmask = list(mask)
lmask.reverse()
usedMask = []
retInput = ''
c = ''
maskChar = lmask.pop()
try :
while maskChar not in _validKeys :
if separators :
retInput += maskChar
msvcrt.putch(maskChar)
maskChar = lmask.pop()
except IndexError : pass
c = msvcrt.getch()
while c != chr(13) :
if maskChar and maskChar not in _validKeys and c in
_validChars[lmask[-1]] :
if separators :
retInput += maskChar
msvcrt.putch(maskChar)
usedMask.append(maskChar)
maskChar = lmask.pop()
if usedMask and c == '\b' :
try :
if maskChar :
lmask.append(maskChar)
maskChar = usedMask.pop()
retInput = retInput[:-1]
msvcrt.putch(c)
msvcrt.putch(' ')
msvcrt.putch(c)
while usedMask[-1] not in _validKeys :
if maskChar :
lmask.append(maskChar)
maskChar = usedMask.pop()
if separators :
retInput = retInput[:-1]
msvcrt.putch(c)
msvcrt.putch(' ')
msvcrt.putch(c)
except IndexError : pass
elif maskChar and c in _validChars[maskChar] :
retInput += c
msvcrt.putch(c)
try :
usedMask.append(maskChar)
maskChar = lmask.pop()
# while maskChar not in _validKeys :
except IndexError :
maskChar = ''
c = msvcrt.getch()
return retInput
if __name__ == '__main__' :
invar = maskInput('-.99')
print
print invar
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Re: [Tutor] Reading Input Data
lechtlr wrote:
I want to read an input file (file.csv) that has two columns. I want
to read 2nd column and assign variables that are strings and floats.
Currently, I use the following split() function to read from the input
file and create a list, and then assign each element to a variable.
In addition to Jay (it's csv module not cvs) and Michael's responses I add:
It is rarely a good idea to assign a bunch of variables (x1...xn).
What's the reason you're doing this?
You can just create another list holding the floated values. If you
assign this list to x then you can refer to x[0], x[1], ...x[n].
Also you have created lists within your list, to no apparent purpose;
Consider:
x = [float(line.split(',')[1]) for line in open(file.csv)]
Bob
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Re: [Tutor] tree/node class/module
cedric briner wrote: hello, I'm wanting to do a GUI for to help people using rsync, du, tar . it will provide the --exclude and --include of them. And I thought that the best way to store data relative to the hierarchy filesystem was to store them in a tree structure. But after browsing ages on the web, I didn't found any class/modules which implements trees, with some comments, and small examples. Some googling led to: http://www.velocityreviews.com/forums/t355467-tree-and-graph-structures-in-python.html I have not looked up the links therein but the titles sound promising. We could roll our own if all else fails. [snip] Bob ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] A faster x in S
Dinesh B Vadhia wrote: For some significant data pre-processing we have to perform the following simple process: Is the integer x in a list of 13K sorted integers. That's it except this has to be done 100m times with different x's (multiple times). Yep, a real pain! I've put the 13K integers in a list S and am using the is 'x in S' function. I was wondering if there is anything faster? I agree with Kent. l = range(13000) s=set(l) d=dict(enumerate(l)) import time def f(lookupVal, times, values): ... st=time.time() ... for i in range(times): ... z = lookupVal in values ... return time.time()-st f(6499,1000,l) 0.3126376037598 f(6499,100,s) 0.3123623962402 So set is 1000 times faster than list! f(6499,100,d) 0.31300020217895508 And dict is (as expected) about the same as set. So 100,000,000 lookups should take about 30 seconds. Not bad, eh? Let's explore another angle. What range are the integers in (min and max)? Bob ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Reading Input Data
I'd like to be clear, this isn't a clean thing for the middle of a big
program. I was thinking the entire time I was testing it I wonder why
anyone would need to do this
But if you have a python program you'd probably call a script, used
for one simple task, it can be appropriate (with Kent's catch on the
globals/local thing). I assumed you were using your approach for
something like that. (would you tell us what you're doing this for
btw? The suspense ... :o))
If you're doing something like multivariable analysis or something
else that you would do in software like maple, this approach can
greatly simplify the notation over the list/dict approach.
If you're not using python as a huge substitute for a math solver,
then avoid what I said like the plague and use a dict.
--Michael
On 1/15/08, Michael Langford [EMAIL PROTECTED] wrote:
Accidentally cut off a 0 there...
Think about using ConfigParser instead of your csv. Doug Hellman wrote
a good article on that:
http://blog.doughellmann.com/2007/04/pymotw-configparser.html
But if you really want to load your data this way, this will work:
for subscript,line in enumerate(file(file.csv)):
s = line.split(,)[1]
try:
f = float(s)
locals()[x%i % subscript]=f
except:
locals()[x%i % subscript]=s
print x1
print x0
On Jan 15, 2008 3:47 PM, Michael Langford [EMAIL PROTECTED] wrote:
for subscript,line in enumerate(file(file.csv)):
s = line.split(,)[1]
try:
f = float(s)
locals()[x%i % subscript]=f
except:
locals()[x%i % subscript]=s
print x1
print x
On Jan 15, 2008 3:26 PM, lechtlr [EMAIL PROTECTED] wrote:
I want to read an input file (file.csv) that has two columns. I want to
read
2nd column and assign variables that are strings and floats. Currently, I
use the following split() function to read from the input file and create
a
list, and then assign each element to a variable.
I am wondering there is any other easier (and elegant) way of doing this ?
data = []
for line in open(file.csv):
columns = line.split(',')
data.append([columns[1]])
This script returns, say:
data = [ ['20.0'], ['0.34'], ,[ 'a:0.20, b:0.30, c:0.50'
]]
Then, I assign to a set of variables, say:
x1 = float(data[0][0]) ; x2 = float(data[1][0]);.;xn =
data[-1][0]
Thanks,
Lex
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--
Michael Langford
Phone: 404-386-0495
Consulting: http://www.RowdyLabs.com
--
Michael Langford
Phone: 404-386-0495
Consulting: http://www.RowdyLabs.com
--
Michael Langford
Phone: 404-386-0495
Consulting: http://www.RowdyLabs.com
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Re: [Tutor] Input
Try regular expressions in the re module. This should make this code below
much much simpler. Downside is you have to learn a slightly different
syntax. Upside is - regular expressions are very powerful.
Last week someone had an issue with raw_input() and how to get input for
a number. So I remembered my CP/M times and got to think of a little
function I had there. The function is lost and my time is scarce but I
made a little effort and here you have the results. It has loads of room
for improvement and probably a few bugs but it's a starting point, and
it should guarantee that you get the input you need.
You just define your mask and the functions checks the input
accordingly, it returns a string.
You might improve it by displaying the mask, e.g. for mask = '.99'
you might see in the screen .__ or for mask = '999-AAA::' you'd
see ___-___::___ so the user will know the format of what's expected of
him, also a beep on incorrect entry might prove nice.
HTH
---
import msvcrt
_validChars = {
'X' :
'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890'
, '9' : '1234567890'
, '-' : '-1234567890'
, 'A' :
'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
, '!' : 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'}
_validKeys = _validChars.keys()
def maskInput(mask, separators = True) :
lmask = list(mask)
lmask.reverse()
usedMask = []
retInput = ''
c = ''
maskChar = lmask.pop()
try :
while maskChar not in _validKeys :
if separators :
retInput += maskChar
msvcrt.putch(maskChar)
maskChar = lmask.pop()
except IndexError : pass
c = msvcrt.getch()
while c != chr(13) :
if maskChar and maskChar not in _validKeys and c in
_validChars[lmask[-1]] :
if separators :
retInput += maskChar
msvcrt.putch(maskChar)
usedMask.append(maskChar)
maskChar = lmask.pop()
if usedMask and c == '\b' :
try :
if maskChar :
lmask.append(maskChar)
maskChar = usedMask.pop()
retInput = retInput[:-1]
msvcrt.putch(c)
msvcrt.putch(' ')
msvcrt.putch(c)
while usedMask[-1] not in _validKeys :
if maskChar :
lmask.append(maskChar)
maskChar = usedMask.pop()
if separators :
retInput = retInput[:-1]
msvcrt.putch(c)
msvcrt.putch(' ')
msvcrt.putch(c)
except IndexError : pass
elif maskChar and c in _validChars[maskChar] :
retInput += c
msvcrt.putch(c)
try :
usedMask.append(maskChar)
maskChar = lmask.pop()
# while maskChar not in _validKeys :
except IndexError :
maskChar = ''
c = msvcrt.getch()
return retInput
if __name__ == '__main__' :
invar = maskInput('-.99')
print
print invar
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Re: [Tutor] Input
Tiger12506 wrote: Try regular expressions in the re module. This should make this code below much much simpler. Downside is you have to learn a slightly different syntax. Upside is - regular expressions are very powerful. Of course I know and use reg. exps., the point of the function is not to validate input but to force the proper input. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] Rs: help, thanks very much.
i am new guy. i ask a easy question. why the first one havex,the second one doesn't have x. what is different? when write x,when don't write x. in my point,the second one don't def variable. (1) def func(x): print 'x is', x x = 2 print 'Changed local x to', x x = 50 func(x) print 'x is still', x (2) def func(): global x print 'x is', x x = 2 print 'Changed local x to', x x = 50 func() print 'Value of x is', x DreamMail - 第一次不用是你的错，第二次不用是我的错 www.dreammail.org ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Rs: help, thanks very much.
Did you read the entire discussion at http://www.ibiblio.org/g2swap/byteofpython/read/local-variables.html? What did you understand and not understand? Sincerely, e. bill.wu wrote: i am new guy. i ask a easy question. why the first one havex,the second one doesn't have x. what is different? when write x,when don't write x. in my point,the second one don't def variable. (1) def |func||*(x)*:| | print ||'x is'||, x| | x = ||2| | print ||'Changed local x to'||, x| |x = ||50| |func*(x)*| |print ||'x is still'||, x| (2) def |func||*()*:| | global ||x| | print ||'x is'||, x| | x = ||2| | print ||'Changed local x to'||, x| |x = ||50| |func*()*| |print ||'Value of x is'||, x| /*DreamMail*/ - 第一次不用是你的错，第二次不用是我的错 www.dreammail.org http://www.dreammail.org ___ 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] Input
Ricardo Aráoz wrote:
_validChars = {
'X' :
'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890'
, '9' : '1234567890'
, '-' : '-1234567890'
, 'A' :
'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
, '!' : 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'}
_validKeys = _validChars.keys()
snip
while maskChar not in _validKeys :
There is no need to make _validKeys, you can write
while maskChar not in _validChars
which is actually more efficient, in general, because it is a hash table
lookup instead of searching a list.
Kent
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Re: [Tutor] Input
Of course I know and use reg. exps., the point of the function is not to validate input but to force the proper input. So? Are you going to try to tell me that you can force particular input without actually determining if its valid or not first? ;-) Just a thought. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] A faster x in S
Kent and Bob, Are you thinking of the first problem in Bentley's Programming Pearls? The original poster's questions sounds like it could be in that domain. http://netlib.bell-labs.com/cm/cs/pearls/cto.html So I agree: the next questions we probably should ask the original poster: * Why are you trying to search for a number in those sorted integers? * Is there anything characteristic about those sorted integers that might be peculiar or useful? Do the numbers have streaks? Are the integers large or small? ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] help, thanks very much.
i am new guy. i ask a easy question. why the first one havex,the second one doesn't have x. what is different? when write x,when don't write x. in my point,the second one don't def variable. (1) def func(x): print 'x is', x x = 2 print 'Changed local x to', x x = 50 func(x) print 'x is still', x (2) def func(): global x print 'x is', x x = 2 print 'Changed local x to', x x = 50 func() print 'Value of x is', x ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] get_python_lib()
Hi list, I was just wondering why the below function return different location on different machine? import distutils.sysconfig distutils.sysconfig.get_python_lib() On my computer: '/usr/lib/python2.5/site-packages' On my friend's computer: '/usr/local/lib/python2.5/site-packages' What is the difference between these two? Note: I have both location on my filestem. Thanks for your input. dada ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] help, thanks very much.
bill.wu bill.wws at gmail.com writes: i am new guy. i ask a easy question. why the first one havex,the second one doesn't have x. what is different? when write x,when don't write x. in my point,the second one don't def variable. Variable scope. By declaring the x as global, any changes to x in func() will affect x outside the function, as well. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] parsing html.
Hello, I have a html document here which goes like this: A name=4/abTable of Contents/b . A name=5/abPreface/b Can someone tell me how I can get the string between the b tag for an a tag for a given value of the name attribute. Thanks, Shriphani Palakodety ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] get_python_lib()
Kakada wrote: Hi list, I was just wondering why the below function return different location on different machine? import distutils.sysconfig distutils.sysconfig.get_python_lib() On my computer: '/usr/lib/python2.5/site-packages' On my friend's computer: '/usr/local/lib/python2.5/site-packages' What is the difference between these two? Note: I have both location on my filestem. Most of the packages will install itself, by default, into /usr/local/lib/python$VER/site-packages/(third-party). But most distibutions will put their software into /usr/lib/python$VER/site-packages/. May be your friend might have changed $PYTHONHOME like env's so that it is pointing to /usr/local or while installing the python he might have set --prefix to the /usr/local/ -VishnuMohan, Montalvo Systems. ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] tree/node class/module
usefull page http://www.velocityreviews.com/forums/t355467-tree-and-graph-structures-in-python.html thanks again Ced. -- Cedric BRINER Geneva - Switzerland ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
