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This issue is similar to previous ones, but cannot be solve with same suggestions.

I am using Centos 7. On a virtual environment running Python 3.5 (latest stable version), I am trying to install psycopg2 by using pip3/pip/easy_install.

In all scenarios, I get the following error:

fatal error: Python.h: No such file or directory

I read previous threads:

psycopg: Python.h: No such file or directory

fatal error: Python.h: No such file or directory

but the solutions don't work. Any idea?

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  • If you're using your virtualenv with no site packages, then you should install your dependencies. I believe psycopg2 uses the postgres-devel as a dependency. Try installing that. Someone can correct me otherwise. Commented Oct 20, 2016 at 14:33
  • Using a virtualenv does not make a difference when it comes to system dependencies. Commented Oct 20, 2016 at 14:39
  • python-devel is likely for Python 2 in this case. Does this answer help? serverfault.com/questions/710354/… Commented Oct 20, 2016 at 19:50
  • 1
    I had python34-devel package, but not python35-devel package. That's why Commented Oct 20, 2016 at 22:52

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If you are installing from source there are several system dependencies that should be fulfilled:

http://initd.org/psycopg/docs/install.html#install-from-source

But Python.h is definitely coming from the python-devel (and python3X-devel) package so if it's not found there might be something misconfigured on your system. https://gcc.gnu.org/onlinedocs/cpp/Search-Path.html

Alternatively, you could use the system package using the package manager so that it solves dependencies for you.

yum install python35-psycopg2  # python-psycopg2 for python 2
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2 Comments

Had to install python35-devel package, I had previous ones
Oh I missed that part of your question.

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