Dependencies

Whether the Python interpreter needs to be included in the snap depends on its base and confinement.

core26

• The core26 base snap doesn’t include Python, so the snap must always include it. This is typically done with the stage-packages key.

core24 and lower

• Projects with strict or devmode confinement can safely use the base snap’s interpreter, so they typically do not need to include Python.

• Projects with classic confinement cannot use the base snap’s interpreter and thus must always bundle it. This is typically done with the stage-packages key.

• In both cases, a specific/custom Python installation can always be included in the snap. This can be useful, for example, when using a different Python version or building an interpreter with custom flags.

Snapcraft will prefer an included interpreter over the base’s, even for projects with strict and devmode confinement.