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Two beginner questions about paths and running programs in Python:   Message List  
Reply | Forward Message #329 of 354 |
Re: [PhillyPug] Re: Two beginner questions about paths and running programs in Python:

On Wed, Jun 10, 2009 at 03:42:52AM -0000, Shawn Moffit wrote:
> I know I'm not getting how the relative directory structure from
> python works... If I'm using python at c:\python26 and my module
> files are at c:\python26\pydocs

> what is the correct syntax for importing them from within the
> interpreter?

In general, if you type "import foo" then either there should be a
"foo.py" installed in one of the "system locations" (on linux this
might be /usr/lib/python2.6/site-packages/foo.py) or there should be a
foo.py in the current working directory (and you'd use the "cd" command
to move yourself into the right directory).

On Linux, you can use "PYTHONPATH=/some/crazy/folder python" to have
python also search for modules in /some/crazy/folder. I don't know if
this works on Windows.

> what if I wanted to import a file from c:\user\shawn\documents\pydocs

The easiest thing would be to run "cd c:\user\shawn\documents\pydocs"
and then run "python" and then enter "import ch03.py" or whatever.

Good luck,

-- Erik



Wed Jun 10, 2009 3:57 am

erik@...
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Message #329 of 354 |
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I am running Python 2.6.2 on my windows 7 RC 1 x64 laptop and attempting to learn python as a beginner programmer on my own, but I'm having difficulty...
Shawn Moffit
shawnmoffit
Offline Send Email
Jun 9, 2009
8:14 pm

So, I've never used IDLE or Windows. That said, I think you are getting confused between the Python shell (which uses ">>>" as the prompt, and probably runs...
Erik Osheim
erik@...
Send Email
Jun 9, 2009
8:24 pm

so - once I get to the python command prompt, I should be able to open .py files - right? and am I doing that incorrectly or is that, from within python you ...
Shawn Moffit
shawnmoffit
Offline Send Email
Jun 9, 2009
9:05 pm

... Well, from python, you can import python modules (to import foo.py, you'd write "import foo"). You can't run python scripts from within python--or at...
Erik Osheim
erik@...
Send Email
Jun 9, 2009
9:52 pm

... open ... the ... terminal, ... not ... I'm...
Shawn Moffit
shawnmoffit
Offline Send Email
Jun 10, 2009
12:53 am

I know I'm not getting how the relative directory structure from python works... If I'm using python at c:\python26 and my module files are at...
Shawn Moffit
shawnmoffit
Offline Send Email
Jun 10, 2009
3:43 am

... In general, if you type "import foo" then either there should be a "foo.py" installed in one of the "system locations" (on linux this might be...
Erik Osheim
erik@...
Send Email
Jun 10, 2009
4:01 am

If that still doesn't work then you likely need to add python to windows path. For Windows 7 right-click on the "Computer" (aka My Computer) and choose...
Dave Teske
teskepython
Offline Send Email
Jun 9, 2009
9:20 pm

Thanks Dave - I made the changes and now it works from the command line as well. Very helpful....
Shawn Moffit
shawnmoffit
Offline Send Email
Jun 10, 2009
2:12 am
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