RE: [PyCrust] problems with os

[Patrick K. O'B. <po...@or...>]

The short answer is that what you see right now is the default behavior of
the Python interpreter. The other shells, such as IDLE, play useful tricks
by adding things to the sys.path behind the scenes. In particular, the
following bit of code will illustrate what you want by adding the current
directory, as represented by ".", to the sys.path. Then when you os.chdir()
you will be able to import from the current working directory.

>>> from pprint import pprint
>>> import sys
>>> pprint(sys.path)
['',
 'C:\\Code',
 'C:\\Python21\\win32',
 'C:\\Python21\\win32\\lib',
 'C:\\Python21',
 'C:\\Python21\\Pythonwin',
 'C:\\PYTHON21\\DLLs',
 'C:\\PYTHON21\\lib',
 'C:\\PYTHON21\\lib\\plat-win',
 'C:\\PYTHON21\\lib\\lib-tk',
 'C:\\PYTHON21\\Numeric']
>>> import os
>>> sys.path.insert(0, os.curdir)
>>> pprint(sys.path)
['.',
 '',
 'C:\\Code',
 'C:\\Python21\\win32',
 'C:\\Python21\\win32\\lib',
 'C:\\Python21',
 'C:\\Python21\\Pythonwin',
 'C:\\PYTHON21\\DLLs',
 'C:\\PYTHON21\\lib',
 'C:\\PYTHON21\\lib\\plat-win',
 'C:\\PYTHON21\\lib\\lib-tk',
 'C:\\PYTHON21\\Numeric']

Because this is pretty useful, I will probably add sys.path.insert(0,
os.curdir) as standard behavior in the shell so you won't have to jump
through this hoop in the future. In fact, I just checked this change into
cvs. Hope this helps. Thanks for the feedback.

---
Patrick K. O'Brien
Orbtech (http://www.orbtech.com)
"I am, therefore I think."

-----Original Message-----
From: pyc...@li...
[mailto:pyc...@li...]On Behalf Of Raul Cota
Sent: Friday, September 07, 2001 4:04 PM
To: pycr
Subject: [PyCrust] problems with os


why doesn't this code work???
>>> import os
>>> os.chdir('d:\sim')
>>> import SThermoAdmin
Traceback (most recent call last):
  File "<input>", line 1, in ?
ImportError: No module named SThermoAdmin

Needless to say , that I tested the same lines in another interpreter
and they work fine.
Tried it with any file that is not in the python path and I get the same
results.


I'll try to find the reason myself since I'm going to be playing around
with PyCrust today, because I'm planning on implementing it in my
application (currently I'm using shell.py that comes in the wxPython
distribution)

BTW. Thanks for the icon... it looks really cool!!!

Raul

Win NT; Python 2.1; wxPython 2.3.1

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