IronPython cannot import module os

Question

So I have a basic ZIPPED IronPython (2.6 or 2.6.1) that I just unzip, start ipy.exe, type "import os" and hit enter. The following output happens:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named os

It doesn't work even if I import clr first. What's it to be done ?

I've googled this issue but no relevant answer. The closest idea was this (which didn't work):

import clr
clr.AddReference("IronPython")
clr.AddReference("IronPython.Modules")
import os

Is the structure to the Libs directory still intact when you unzip? This is needed for it to find all the system libraries. — AutomatedTester
– AutomatedTester, Commented Oct 11, 2010 at 7:53
it is exactly like in the zip, and compared to CPython it's much smaller — lj8888
– lj8888, Commented Oct 11, 2010 at 8:07

digEmAll · Accepted Answer · 2010-10-11 08:23:38Z

5

Likely, the problem is not the in zip, but in os module location.

You need to have CPython installed and your script should be able to reach the CPython Lib directory. To get this you can either copy all the os necessary files under your Lib directory, or you can set the environment variable IRONPYTHONPATH to point to the Lib directory below CPython.

answered Oct 11, 2010 at 8:23

digEmAll

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3 Comments

lj8888 Over a year ago

but won't this conflict runtimes ? if any installed python library from Lib has C or C++ modules ?

digEmAll Over a year ago

Mmmh... I'm not sure, but probably some modules won't work if they depend on C or C++...

tdc Over a year ago

This worked for me. On OSX I did export IRONPYTHONPATH=/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/

andrewsi · Accepted Answer · 2012-10-02 18:20:10Z

1

This must help:

import sys
sys.path.append("C:\\PythonXY\\Lib")

edited Oct 2, 2012 at 18:20

andrewsi

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answered Oct 2, 2012 at 18:13

snippets

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1 Comment

davehale23 Over a year ago

Try to add more about why this will help.

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