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Editorial Team
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Asked: 2026-05-23T18:28:04+00:00

Doesn’t setuptools use easy_install to get the additional dependencies you specify in a setup.py

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Doesn’t setuptools use easy_install to get the additional dependencies you specify in a setup.py? I’m asking because say I have a setup.py and in the install_requires = ["numpy"]. Now if I run python setup.py install, it gives a error:

_configtest.c:1:20: error: Python.h: No such file or directory
_configtest.c:1:20: error: Python.h: No such file or directory
lipo: can't figure out the architecture type of: /var/tmp//cciDxELX.out
_configtest.c:1:20: error: Python.h: No such file or directory
_configtest.c:1:20: error: Python.h: No such file or directory

However if I run easy_install numpy works. What could cause this kind of behaviour?

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1 Answer

  1. Editorial Team

    The kind of error you’re receiving is usually because you don’t have the Python development package installed. If you’re using an Ubuntu based distribution, go to Synaptic, and search for python-dev (the name may not be 100% accurate, do a little browsing there).

    It could be that easy_install works with prebuilt stuff.

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