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Fix: Have _resolve_scheme check prefix availability #378

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Fix: Have _resolve_scheme check prefix availability #378

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6 changes: 4 additions & 2 deletions distutils/command/install.py
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Original file line number Diff line number Diff line change
Expand Up @@ -128,7 +128,7 @@ def _get_implementation():


def _select_scheme(ob, name):
scheme = _inject_headers(name, _load_scheme(_resolve_scheme(name)))
scheme = _inject_headers(name, _load_scheme(_resolve_scheme(ob, name)))
vars(ob).update(_remove_set(ob, _scheme_attrs(scheme)))


Expand All @@ -139,10 +139,12 @@ def _remove_set(ob, attrs):
return {key: value for key, value in attrs.items() if getattr(ob, key) is None}


def _resolve_scheme(name):
def _resolve_scheme(ob, name):
os_name, sep, key = name.partition('_')
try:
resolved = sysconfig.get_preferred_scheme(key)
if resolved == 'posix_local' and ob.prefix is not None:
resolved = 'posix_prefix'
except Exception:
resolved = fw.scheme(name)
return resolved
Expand Down