(Deprecated) Installing python v2.x on linux without internet and root-level access.

python.md

It is assumed that:

• Any required file is being downloaded on some other computer and transferred to our target linux machine by some means.
• Installing v2.7.15 of python - Downloaded as Gzipped source tarball from Python.org.

Installation:

1. Create some directories - to keep it all organized:
   mkdir $HOME/packages && mkdir $HOME/packages/src && mkdir $HOME/packages/installed

2. Move Python-2.7.15.tgz to $HOME/packages/src

3. Extract: cd $HOME/packages/src && tar -xzf Python-2.7.15.tgz

4. Build zlib.
   cd Python-2.7.15/Modules/zlib
./configure --prefix=$HOME/packages/installed
make - Ignore No rule to make target... Stop.
   make install

5. Return to the parent Python-2.7.15 folder: cd ../..

6. Build python.

   1. Configure: ./configure --prefix=$HOME/packages/installed --exec-prefix=$HOME/packages/installed
   2. Manually add zlib option: echo 'zlib zlibmodule.c -I$(prefix)/include -L$(exec_prefix)/lib -lz' >> Modules/Setup.local
   3. make
   4. make install

7. Determine your user-level environment variable file - .profile or .bash_profile or something else.
   Say: pathFile=$HOME/.bash_profile

8. Edit $pathFile:

   1. Update $PATH
      Add $HOME/packages/installed/bin before any other location so that it can override any system-wide installed python.

   2. Add $LD_LIBRARY_PATH - That is:
      LD_LIBRARY_PATH=$HOME/packages/installed/lib
export $LD_LIBRARY_PATH

9. Load new values of environment variables: source $pathFile
   You might need to rerun this step whenever you start a new terminal.

10. Verify:

• python: python --version
• pip: pip --version

11. Clean up: rm -r $HOME/packages/src/Python-2.7.15

Installing a python package:

1. From source code with setup.py

   • python -m pip install .
   • python setup.py install

2. From .whl file

   • python -m pip install fileName.whl
   • python -m wheel install fileName.whl

Installed packages:

1. List: python -m pip list

2. Specific package: python -m pip show packageName

   You will get something like:

   Name: setuptools
   Version: 39.0.1
   Summary: Easily download, build, install, upgrade, and uninstall Python packages
   

Uninstall:

1. Remove $HOME/packages/installed/bin from $PATH in your $pathFile.
2. Load the new $PATH: source $pathFile
3. rm -r $HOME/packages/installed/*