python: error while loading shared libraries: libpython3.4m.so.1.0: cannot open shared object file: No such file or directory

Question

I have created a python virtual environment using virtualenv, after activating it, I can see where is Python installed in my shell as following:

Answer 1

I got it running by installing the package

sudo apt-get install libpython3.x-dev 

Answer 2

This one worked for me.

cd ~/
vim .bashrc
export LD_LIBRARY_PATH=~/miniconda/envs/python3.6/lib/

Answer 3

For Python 3.6, it was fixed by

sudo apt-get install libpython3.6-dev

Answer 4

Another way is adding LDFLAGS="-Wl,-rpath /usr/local/lib" in configure, for example

./configure --prefix=/usr/local --enable-shared LDFLAGS="-Wl,-rpath /usr/local/lib"

/usr/local/lib is the path where libpython3.*.so files are in

Answer 5

Kudos to above, For python 3.X you can fix this issue with:

sudo apt-get install libpython3.x-dev

No need to any changes to environment path manually.

Answer 6

On python 3.8, I resolved this by deleting the virtualenv directory (./venv in my case) and recreating using python's built-in venv module installed of the pip-installed virtualenv. I'm on arch linux and also first did sudo pacman -Syu. Python was originally installed using just sudo pacman -S python.

$ rm -r ./venv
$ python -m venv venv
$ . ./venv/bin/activate
$ python --version
Python 3.8.1