Support pip version 26.0 #2319
Description
Initial testing with the new pip version reveals a variety of errors.
Some of them are cleared up pretty quickly, but it's not trivial to fix everything.
A good number of testsuite failures stem from one particular issue, which is support for PackageFinder.allow_all_prereleases. I've been able to handle that with two small helper functions:
def finder_allows_prereleases_of_req(
finder: PackageFinder, ireq: InstallRequirement
) -> bool:
if _pip_version.PIP_VERSION_MAJOR_MINOR < (26, 0):
return finder.allow_all_prereleases
else:
return finder.release_control.allows_prereleases(ireq.req.name)
def finder_allows_all_prereleases(
finder: PackageFinder
) -> bool:
if _pip_version.PIP_VERSION_MAJOR_MINOR < (26, 0):
return finder.allow_all_prereleases
else:
return ":all:" in finder.release_control.all_releases