Make Python Installation Faster

Recently I am annoyed in manual python installation on Ubuntu, especially when I am often changing servers or the python versions due to the experimental requirements or development requirements.

Inspired by the JumpServer installation scripts, I coded the main functions that I commonly require in my coding life based on Bash.

This is a rough tool for helping fast python installation. It basically concludes three main functions

• Download and install a new version of python and install on the specific path. Also, it can generate soft links to pip, python, virtualenv.
• Create a new virtual environment to a specific path.
• List all the pip*, python*, virtualenv* under /usr/bin/.

It is well-working on Ubuntu 22.04, tested with only Python 3.7.* and Python 3.9.*.
If you have any problems when you are using the tools, please inform me by hokyeejau@foxmail.com

Notice

1. The tool is only tested on Ubuntu 22.04. Although there is little possibility that the bash is not able to be wrong implemented, still be careful!
2. The tool is basically designed for automatic installation of python 3.7+. Python 2 remains uncertainty.
3. The tool is very simple and coded only in Bash. As this is a rough tool for constructing experimental environments for my web developing and ai model training, the libs required or python installation configurations are all from my needs. You could modify the installation configurations in install.sh: 30.
4. Make sure you are using root user, or the sudo will not work.
5. Better to change the mode of the files like chmod 777 *

Usage

Clone or download this tool and move the tool to wherever you like.
I mostly put under /opt.

Introduction

The options are very sensitive in this place. There is a you-should-input option --action except --help.

Help Information

As the tool is designed like the normal tools with help option in the named argument list,
you could briefly input

./system_handler.sh 

or

./system_handler.sh -h 

or

./system_handler.sh --help

for showing all the details.

Actions

There are three actions: install, new_envr, and list.

Install

Action: install
Default values of installation

• Python Directory: /usr/local/lib/
• Python Version: 3.7.10
• Abbreviation of Python Version: 37 for suffixing pip*, python*, virtualenv*. For example, pip37 will be soft linked from /usr/local/lib/python37/lib/pip3.7.

For quick default installation:

./system_handler.sh -a install

Make sure that there is no other link having same name with those 3 links. The final result is as follow:

If you want to change the python version, the short version info and python directory, try the following input:

./system_handler.sh -a install -v 3.9.3 -abbr 393 -dir /path/for/python/libs

New Env

Action: newenv
Default values of new virtual environment

• Abbreviation of Python Version: 37
• Virtual Environment Path: /opt/venv
• Requirement File: /opt/requirements.txt

For quick default venv configurations (if you have the soft links in /usr/bin as mentioned in Install)

./system_handler.sh -a new_env

If you want to apply another python, path of requirement file and virtual environment link, you can try:

./system_handler.sh -a new_env -abbr /another/python/dir/bin/python3 -venv /new/venv/path -reqr /another/requirement.txt

List

Action: list No option required in this case. The tool will show you all the pip*, python*, virtualenv* under /usr/bin/

./system_handler.sh -a list