python script

Hello,

my problem is described very quickly:
The package is installed. In the interpreter the 'import matplotlib' does not throw an error. On the other hand I tried to use matplotlib in a python script and here the very same command provokes the following error message:

Traceback (most recent call last):
   File "./account3.py", line 13, in <module>
     import matplotlib
ImportError: No module named matplotlib

I would be greatful for any help/explanaiton.
Cheers,
Felix

$ uname -aDarwin mac-screening-1 9.8.0 Darwin Kernel Version 9.8.0: Wed Jul 15 16:55:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_I386 i386

$ python
Python 2.5.4 (r254:67917, Dec 23 2008, 14:57:27)
[GCC 4.0.1 (Apple Computer, Inc. build 5363)] on darwin

$ python -c 'import matplotlib; print matplotlib.__version__, matplotlib.__file__'
0.99.0 /Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/__init__.pyc

The Package was downloaded from the link:
http://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-0.99.1/matplotlib-0.99.1.1-py2.5-macosx10.5.dmg/download

felix meyenhofer wrote:

The package is installed. In the interpreter the 'import matplotlib' does not throw an error. On the other hand I tried to use matplotlib in a python script and here the very same command provokes the following error message:

how are you running that script? I supect you are getting a different python.

try:

$ python TheNameOfTheScript

that should get you the same python as you get typig "python"

If you run the script directly:

$ ./TheNameOfTheScript

it will use the #! line at the top to tell it where to find python. If that line says"

#!/usr/bin/python

you'll probably get a different one. the usual convention is:

#!/usr/bin/env python

which should get you the same one that you get when you start python at the command line.

a few things to try to test all this:

$ which python

python \-c &quot;import sys; print sys\.path&quot; python -c "import sys; print sys.executable"

putting import sys" and "print sys.path" or "print sys.executable" at the top of your troublesome script.

HTH,

-Chris

···

Traceback (most recent call last):
   File "./account3.py", line 13, in <module>
     import matplotlib
ImportError: No module named matplotlib

I would be greatful for any help/explanaiton.
Cheers,
Felix

$ uname -aDarwin mac-screening-1 9.8.0 Darwin Kernel Version 9.8.0: Wed Jul 15 16:55:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_I386 i386

$ python
Python 2.5.4 (r254:67917, Dec 23 2008, 14:57:27)
[GCC 4.0.1 (Apple Computer, Inc. build 5363)] on darwin

$ python -c 'import matplotlib; print matplotlib.__version__, matplotlib.__file__'
0.99.0 /Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/ site-packages/matplotlib/__init__.pyc

The Package was downloaded from the link:
Download matplotlib-0.99.1.1-py2.5-macosx10.5.dmg (matplotlib)

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