How can you list the available versions of a package using pip?

How to List Available Package Versions with pip

In the Python packaging ecosystem, pip serves as a crucial tool for managing package installations. When it comes to exploring the various versions of a package, pip offers a convenient method to list them.

For pip versions 21.2 and above, the pip index versions command provides an effective way to retrieve a list of available versions. Simply enter the command followed by the package name, such as:

pip index versions pylibmc

Pip versions 21.1 specifically implement a slightly different approach. Instead of listing versions directly, it prompts the user to specify a version or use the latest version available. To circumvent this behavior, use the --use-deprecated=legacy-resolver argument as follows:

pip install pylibmc== --use-deprecated=legacy-resolver

Versions 20.3 and onward require a similar approach. However, the argument syntax is slightly different:

pip install --use-deprecated=legacy-resolver pylibmc==

For pip versions between 9.0 and 20.2, a slightly different technique can be used. By specifying an invalid version, such as "blork," pip will display a list of available versions without installing or downloading any packages:

pip install pylibmc==blork

Note that pip versions prior to 9.0 do not offer an explicit method for listing versions.

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