ModuleNotFoundError: No module named '_socket' after installing python3 to a local folder

I installed Python 3.7.4 from sources to a local folder. Installation did not produce any errors, but the binaries do not work.

That's what I did to install and setup the software

./configure --prefix=/usr/local/python3.7.4 make -j 8 install export PYTHONHOME="/usr/local/python3.7.4/" export PYTHONPATH="/usr/local/python3.7.4/lib/python3.7/site-packages/" 

That's what I get when attempt to run python3

/usr/local/python3.7.4/bin/python3 Python 3.7.4 (default, Sep 4 2019, 19:14:06) [GCC 4.8.3 20140627 [gcc-4_8-branch revision 212064]] on linux Type "help", "copyright", "credits" or "license" for more information. Traceback (most recent call last): File "/etc/pythonstart", line 7, in <module> import readline ModuleNotFoundError: No module named 'readline' 

and this is what I get from pip3:

/usr/local/python3.7.4/bin/pip3 Traceback (most recent call last): File "/usr/local/python3.7.4/bin/pip3", line 6, in <module> from pip._internal import main File "/usr/local/python3.7.4/lib/python3.7/site-packages/pip/_internal/__init__.py", line 19, in <module> from pip._vendor.urllib3.exceptions import DependencyWarning File "/usr/local/python3.7.4/lib/python3.7/site-packages/pip/_vendor/urllib3/__init__.py", line 8, in <module> from .connectionpool import ( File "/usr/local/python3.7.4/lib/python3.7/site-packages/pip/_vendor/urllib3/connectionpool.py", line 7, in <module> from socket import error as SocketError, timeout as SocketTimeout File "/usr/local/python3.7.4/lib/python3.7/socket.py", line 49, in <module> import _socket ModuleNotFoundError: No module named '_socket' 

I feel that the core of the problem is the local installation.

I am sorry if my question is trivial. I tried googling it with no success.

Thank you for your time.

1 Answer

The problem was resolved by adding more paths to the PYTHONPATH variable

export PYTHONPATH="/usr/local/python3.7.4/lib/python3.7/site-packages/:/usr/local/python3.7.4/:/usr/local/python3.7.4/lib64/python3.7/lib-dynload/" 

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