diff options
Diffstat (limited to 'setuptools')
| -rw-r--r-- | setuptools/distutils_patch.py | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/setuptools/distutils_patch.py b/setuptools/distutils_patch.py index c5f273dd..33f1e7f9 100644 --- a/setuptools/distutils_patch.py +++ b/setuptools/distutils_patch.py @@ -12,10 +12,26 @@ import importlib import warnings +is_pypy = '__pypy__' in sys.builtin_module_names + + +def warn_distutils_present(): + if 'distutils' not in sys.modules: + return + if is_pypy and sys.version_info < (3, 7): + # PyPy for 3.6 unconditionally imports distutils, so bypass the warning + # https://foss.heptapod.net/pypy/pypy/-/blob/be829135bc0d758997b3566062999ee8b23872b4/lib-python/3/site.py#L250 + return + warnings.warn( + "Distutils was imported before Setuptools. This usage is discouraged " + "and may exhibit undesirable behaviors or errors. Please use " + "Setuptools' objects directly or at least import Setuptools first.") + + def clear_distutils(): if 'distutils' not in sys.modules: return - warnings.warn("Setuptools is replacing distutils") + warnings.warn("Setuptools is replacing distutils.") mods = [name for name in sys.modules if re.match(r'distutils\b', name)] for name in mods: del sys.modules[name] @@ -40,5 +56,6 @@ def ensure_local_distutils(): assert '_distutils' in core.__file__, core.__file__ +warn_distutils_present() if enabled(): ensure_local_distutils() |