MacOS Platform tag when MACOSX_DEPLOYMENT_TARGET is set #312
Description
On MacOs., by default Platform Tag is set to Python platform tag version https://docs.python.org/3/distutils/apiref.html#distutils.util.get_platform
But developer can set MACOSX_DEPLOYMENT_TARGET to another version (eg, to use newer API). So can build python package which will not work on MacOs version suggested by platform tag.
Of course it can be overwritten by -p flag, but I think that it should be out of box.
Maybe some change like (https://github.com/pypa/wheel/blob/master/wheel/pep425tags.py):
def get_platform():
"""Return our platform name 'win32', 'linux_x86_64'"""
# XXX remove distutils dependency
result = distutils.util.get_platform()
if result.startswith("macosx-") and "MACOSX_DEPLOYMENT_TARGET" in os.environ:
result.rfind()
tag = result[7:result.rfind("-")]
parsed_tag = tuple(map(int, tag.split(".")))
parsed_target = tuple(map(int, os.environ["MACOSX_DEPLOYMENT_TARGET"].split(".")))
if parsed_tag < parsed_target:
result = "macosx-" + os.environ["MACOSX_DEPLOYMENT_TARGET"] + result[result.rfind('-'):]
result = result.replace('.', '_').replace('-', '_')
if result == "linux_x86_64" and sys.maxsize == 2147483647:
# pip pull request #3497
result = "linux_i686"
return result