| """ |
| Backward compatibility for homebrew builds on macOS. |
| """ |
| |
| |
| import sys |
| import os |
| import functools |
| import subprocess |
| import sysconfig |
| |
| |
| @functools.lru_cache() |
| def enabled(): |
| """ |
| Only enabled for Python 3.9 framework homebrew builds |
| except ensurepip and venv. |
| """ |
| PY39 = (3, 9) < sys.version_info < (3, 10) |
| framework = sys.platform == 'darwin' and sys._framework |
| homebrew = "Cellar" in sysconfig.get_config_var('projectbase') |
| venv = sys.prefix != sys.base_prefix |
| ensurepip = os.environ.get("ENSUREPIP_OPTIONS") |
| return PY39 and framework and homebrew and not venv and not ensurepip |
| |
| |
| schemes = dict( |
| osx_framework_library=dict( |
| stdlib='{installed_base}/{platlibdir}/python{py_version_short}', |
| platstdlib='{platbase}/{platlibdir}/python{py_version_short}', |
| purelib='{homebrew_prefix}/lib/python{py_version_short}/site-packages', |
| platlib='{homebrew_prefix}/{platlibdir}/python{py_version_short}/site-packages', |
| include='{installed_base}/include/python{py_version_short}{abiflags}', |
| platinclude='{installed_platbase}/include/python{py_version_short}{abiflags}', |
| scripts='{homebrew_prefix}/bin', |
| data='{homebrew_prefix}', |
| ) |
| ) |
| |
| |
| @functools.lru_cache() |
| def vars(): |
| if not enabled(): |
| return {} |
| homebrew_prefix = subprocess.check_output(['brew', '--prefix'], text=True).strip() |
| return locals() |
| |
| |
| def scheme(name): |
| """ |
| Override the selected scheme for posix_prefix. |
| """ |
| if not enabled() or not name.endswith('_prefix'): |
| return name |
| return 'osx_framework_library' |
