Use "pip" Package in Python Script

Python Tutorials - Herong's Tutorial Examples

∟Use "pip" Package in Python Script

This section provides a tutorial example on how to install MySQL Connector/Python package with 'pip' command.

"pip" can also be used as a Python package in Python scripts to manage other Python packages. This is very useful, if you don't have command line access to the host computer.

To use "pip" in Python scripts, you need to use the following statements:

import pip
cmdline = [cmd, arg1, arg2, ...]
pip.main(cmdline)

Example 1: List Installed Packages

herong$ python 
Python 3.9.12 (main, Apr  5 2022, 06:56:58) 

>>> import pip
>>> cmdline = ['list']
>>> pip.main(cmdline)

Package                Version
---------------------- ---------
brotlipy               0.7.0
certifi                2021.10.8
cffi                   1.15.0
charset-normalizer     2.0.4
click                  8.1.3
colorama               0.4.4
conda                  4.12.0
...

Example 2: Install a Given Package

>>> cmdline = ['install', 'scrapy']
>>> pip.main(cmdline)
>>> cmdline = ['install', 'scrapy']

Collecting scrapy
  Downloading Scrapy-2.9.0-py2.py3-none-any.whl (277 kB)
...
Installing collected packages: w3lib, pyasn1, ..., scrapy