How Can I Programmatically Install Python Packages Like 'requests'?

Installing Python Modules Programatically

Installing Python modules within scripts is a common task. This question explores the possibility of leveraging modules or distutils features for seamless installation of packages like "requests."

Recommended Approach: Subprocess Invocation

The officially endorsed method for installing packages during runtime is to invoke the command-line interface (CLI) of pip via a subprocess. This ensures compatibility with pip versions 10 and above, as the programmatic use of pip has been deprecated and moved to pip._internal.

Code Snippet:

import subprocess
import sys

def install(package):
    subprocess.check_call([sys.executable, "-m", "pip", "install", package])

How it Works:

• sys.executable resolves the path to the current Python interpreter.
• The package name (e.g., requests) is passed as the final argument to the subprocess command.
• The check_call method ensures that the subprocess runs successfully.

Alternative Methods (Discouraged)

Some answers suggested alternative methods, but it's important to note that these are not officially supported by pip and may lead to unexpected results.

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