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Hi
I am having a problem in appending to sys.path
I am doing it this way:
>>> sys.path
['D:\\PYTHON23', 'D:\\PYTHON23\\Lib\\idlelib',
'D:\\WINNT\\system32\\python23.zip',
'D:\\PYTHON23\\lib\\site-packages\\Pythonwin',
'D:\\PYTHON23\\lib\\site-packages\\win32',
'D:\\PYTHON23\\lib\\site-packages\\win32\\lib',
'D:\\PYTHON23\\lib\\site-packages', 'D:\\Python23\\DLLs',
'D:\\Python23\\lib', 'D:\\Python23\\lib\\plat-win',
'D:\\Python23\\lib\\lib-tk', 'D:\\Python23']
>>> sys.path.append(r'D:\Python23\Lib\site-packages\code')
>>> sys.path
['D:\\PYTHON23', 'D:\\PYTHON23\\Lib\\idlelib',
'D:\\WINNT\\system32\\python23.zip',
'D:\\PYTHON23\\lib\\site-packages\\Pythonwin',
'D:\\PYTHON23\\lib\\site-packages\\win32',
'D:\\PYTHON23\\lib\\site-packages\\win32\\lib',
'D:\\PYTHON23\\lib\\site-packages', 'D:\\Python23\\DLLs',
'D:\\Python23\\lib', 'D:\\Python23\\lib\\plat-win',
'D:\\Python23\\lib\\lib-tk', 'D:\\Python23',
'D:\\Python23\\Lib\\site-packages\\code']

But when I close the shell and now again open it & do sys.path , it
doesnt show the path I last appended. i.e

>>> import sys
>>> sys.path
['D:\\PYTHON23', 'D:\\PYTHON23\\Lib\\idlelib',
'D:\\WINNT\\system32\\python23.zip',
'D:\\PYTHON23\\lib\\site-packages\\Pythonwin',
'D:\\PYTHON23\\lib\\site-packages\\win32',
'D:\\PYTHON23\\lib\\site-packages\\win32\\lib',
'D:\\PYTHON23\\lib\\site-packages', 'D:\\Python23\\DLLs',
'D:\\Python23\\lib', 'D:\\Python23\\lib\\plat-win',
'D:\\Python23\\lib\\lib-tk', 'D:\\Python23']

What am I doing wrong here??

>>>>sys.path.append(r'D:\Python23\Lib\site-packages\code')
>>>>sys.path
>
> ['D:\\PYTHON23', 'D:\\PYTHON23\\Lib\\idlelib',
> 'D:\\WINNT\\system32\\python23.zip',
> 'D:\\PYTHON23\\lib\\site-packages\\Pythonwin',
> 'D:\\PYTHON23\\lib\\site-packages\\win32',
> 'D:\\PYTHON23\\lib\\site-packages\\win32\\lib',
> 'D:\\PYTHON23\\lib\\site-packages', 'D:\\Python23\\DLLs',
> 'D:\\Python23\\lib', 'D:\\Python23\\lib\\plat-win',
> 'D:\\Python23\\lib\\lib-tk', 'D:\\Python23',
> 'D:\\Python23\\Lib\\site-packages\\code']
>
> But when I close the shell and now again open it & do sys.path , it
> doesnt show the path I last appended. i.e
>
>
>>>>import sys
>>>>sys.path
>
> ['D:\\PYTHON23', 'D:\\PYTHON23\\Lib\\idlelib',
> 'D:\\WINNT\\system32\\python23.zip',
> 'D:\\PYTHON23\\lib\\site-packages\\Pythonwin',
> 'D:\\PYTHON23\\lib\\site-packages\\win32',
> 'D:\\PYTHON23\\lib\\site-packages\\win32\\lib',
> 'D:\\PYTHON23\\lib\\site-packages', 'D:\\Python23\\DLLs',
> 'D:\\Python23\\lib', 'D:\\Python23\\lib\\plat-win',
> 'D:\\Python23\\lib\\lib-tk', 'D:\\Python23']
>
> What am I doing wrong here??
sys.path changed for the same reason why if you set
a="puke"
in the interpreter and then closed the shell and restarted the
interpreter, the variable a would have no value!!
You are not making a permanent change to sys.path using sys.append!!
I think you really want to modify the PYTHONPATH environment variable,
I'd guess.

wrote:
>
> What am I doing wrong here??

As rabbits77 said, your change is not being persisted. What you
can do instead of using PYTHONPATH, if you wish, is read the header
comment in the file python\lib\site.py (i.e. look in your Python
folder tree for that file) and create a ".pth" file with the appropriate
contents. As you are on Windows, make sure you take care to create it
with a lower-case extension, not .PTH, as site.py is case-sensitive in
this respect.

-Peter

Peter Hansen <> wrote in message news:<>...
> wrote:
> >
> > What am I doing wrong here??
>
> As rabbits77 said, your change is not being persisted. What you
> can do instead of using PYTHONPATH, if you wish, is read the header
> comment in the file python\lib\site.py (i.e. look in your Python
> folder tree for that file) and create a ".pth" file with the appropriate
> contents. As you are on Windows, make sure you take care to create it
> with a lower-case extension, not .PTH, as site.py is case-sensitive in
> this respect.
>
> -Peter
Thanks
this is exactly what I was looking for