This may be related. How to install python from source on a remote machine without root access.
Installing Python 3.6 (works with any version per say)
Get the official download link from python.org website(Example. https://www.python.org/ftp/python/3.6.9/Python-3.6.9.tgz)
Download the python source release and get the folder readied for installation from source.
$ wget https://www.python.org/ftp/python/3.6.9/Python-3.6.9.tgz
$ tar zxfv Python-3.6.9.tgz
$ find ~/inflated_location/Python-3.6.9/Python -type d | xargs chmod 0755
$ cd Python-3.6.9
- Install from source
$ ./configure --prefix=~/inflated_location/Python-3.6.9/Python
$ make install
- Export the path variable
$ nano ~/.bashrc
$ export PATH=~/inflated_folder/python/Python-3.6.9/:$PATH
$ source ~/.bashrc
Now you have python3.6 installed for logged in user and can be invoked now using command
Installing py packages.
The easiest way that I have followed is
$ python -m pip install <package-name> --user