I am trying to install pgAdmin4 on Ubuntu 18.04 following this tutorial, but I get the following error with command pip install pgadmin4-2.1-py2.py3-none-any.whl:

src/_fastmath.c:31:10: fatal error: Python.h: No such file or directory
     #include "Python.h"
    compilation terminated.
    error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

Command "/home/hugolvc/pgAdmin4/pgAdmin4/bin/python2 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-Eiam7O/pycrypto/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-xfTq9G/install-record.txt --single-version-externally-managed --compile --install-headers /home/hugolvc/pgAdmin4/pgAdmin4/include/site/python2.7/pycrypto" failed with error code 1 in /tmp/pip-install-Eiam7O/pycrypto/

I just followed the tutorial step by step.


The result of python --version is Python 2.7.15rc1, but I also have installed 3.6 and 3.7.

The result of locate x86_64-linux-gnu-gcc is:


The result of sudo find / -name "Python.h" is:

find: ‘/run/user/1000/gvfs’: Permission denied
  • you have python-dev installed? – George Udosen Mar 30 '19 at 10:27
  • Give python --version and post it. Also Type locate x86_64-linux-gnu-gcc and output will be like /usr/bin/x86_64-linux-gnu-gcc – Marmayogi Mar 30 '19 at 11:32
  • The include "Python.h" is missing in your system. Issue command sudo find / -name "Python.h" and output should be such as /usr/include/python3.7m/Python.h, and/or /usr/include/python2.7/Python.h. Please @Hugo Luis Villalobos Canto, post all the output of commands as part of your question (i.e. edit your question and post!) – Marmayogi Mar 30 '19 at 11:45
  • Just now, I tried to install pgAdmin4 based on your tutorial and I was successful! I suspect that the problem is with your Python installation. Type command python3 --version and you should see output as Python 3.6.7. Have you run command such as sudo apt-get install build-essential libssl-dev libffi-dev python-dev python3-venv during python installation? – Marmayogi Mar 30 '19 at 12:05
  • FYI, after installation of pgAdmin4, I typed pip3 -V whose output is pip 9.0.1 from /usr/lib/python3/dist-packages (python 3.6) – Marmayogi Mar 30 '19 at 12:11

Install python-dev package using the command below:

sudo apt-get install python-dev   # for python2
sudo apt-get install python3-dev  # for python3
  • sudo apt-get install python-dev Reading package lists... Done Building dependency tree Reading state information... Done python-dev is already the newest version (2.7.15~rc1-1). 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. – HuLu ViCa Mar 30 '19 at 14:35
  • Do you use pip3 or pip? You must install python3-dev for pip3. – M.Fooladgar Mar 30 '19 at 14:40
  • Ok, that was it. It worked. Thanks a lot!!! – HuLu ViCa Mar 30 '19 at 15:34

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