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Asked: 2026-05-11T02:22:16+00:00

I’m forced to upgrade to Python 2.6 and am having issues using Numerical Python

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I’m forced to upgrade to Python 2.6 and am having issues using Numerical Python (NumPy) with Python 2.6 in Windows. I’m getting the following error…

Traceback (most recent call last):   File '<pyshell#0>', line 1, in <module>     from numpy.core.numeric import array,dot,all   File 'C:\svn\svn_urbansim\UrbanSimDev\Builds\working\urbansim\Tools\Python26\lib\site-packages\numpy\__init__.py', line 39, in <module>     import core   File 'C:\svn\svn_urbansim\UrbanSimDev\Builds\working\urbansim\Tools\Python26\lib\site-packages\numpy\core\__init__.py', line 5, in <module>     import multiarray ImportError: Module use of python25.dll conflicts with this version of Python.

It appears that the existing module is trying to use the python25.dll file. Is there any way I can tell it to use the python26.dll file instead without modifying the source code?

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1 Answer

  1. How did you install it? NumPy doesn’t currently have a Python 2.6 binary.

    If you have LAPACK/ATLAS/BLAS, etc. and a development environment you should be able to compile numpy from sources. Otherwise I think you’re stuck with using Python 2.5 on Windows if you need NumPy.

    The next version of NumPy should have a 2.6 binary, and it’s likely to be out within the next month or so.

    [Edit]: It appears that a pygame developer created a NumPy 1.2.1 binary for Python 2.6 on Windows, available here.

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