Note

This section of the documentation is currently out of date.

pip developers welcome your help to update this documentation. If you’re interested in helping out, please let us know in the tracking issue, or just submit a pull request and mention it in that tracking issue.

Continuous Integration#

Supported interpreters#

pip support a variety of Python interpreters:

CPython 3.7
CPython 3.8
CPython 3.9
CPython 3.10
Latest PyPy3

on different operating systems:

Linux
Windows
macOS

and on different architectures:

so 42 hypothetical interpreters.

Checks#

pip CI runs different kind of tests:

lint (defined in .pre-commit-config.yaml)
docs
vendoring (is the src/_internal/_vendor directory cleanly vendored)
unit tests (present in tests/unit)
“integration” tests (mostly present in tests/functional)
package (test the packaging steps)

Since lint, docs, vendoring and package tests only need to run on a pip developer/contributor machine, they only need to be tested on the x64 variant of the 3 different operating systems, and when an interpreter needs to be specified it’s ok to require the latest CPython interpreter.

So only unit tests and integration tests would need to be run with the different interpreters.

Services#

pip test suite and checks are distributed on GitHub Actions which provides free executors for open source packages.

Current run tests#

Developer tasks#

OS	docs	lint	vendoring	packaging
Linux	GitHub	GitHub	GitHub	GitHub
Windows	GitHub	GitHub	GitHub	GitHub
macOS	GitHub	GitHub	GitHub	GitHub

Actual testing#

interpreter			unit	integration
Windows	x86	CP3.7
		CP3.8
		CP3.9
		CP3.10
		PyPy3
	x64	CP3.7	GitHub	GitHub
		CP3.8
		CP3.9
		CP3.10	GitHub	GitHub
		PyPy3
Linux	x86	CP3.7
		CP3.8
		CP3.9
		PyPy3
	x64	CP3.7	GitHub	GitHub
		CP3.8	GitHub	GitHub
		CP3.9	GitHub	GitHub
		CP3.10	GitHub	GitHub
		PyPy3
macOS	arm64	CP3.7
		CP3.8
		CP3.9
		CP3.10
		PyPy3
	x64	CP3.7	GitHub	GitHub
		CP3.8	GitHub	GitHub
		CP3.9	GitHub	GitHub
		CP3.10	GitHub	GitHub
		PyPy3