8000 bpo-45020: Identify which frozen modules are actually aliases. by ericsnowcurrently · Pull Request #28655 · python/cpython · GitHub
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bpo-45020: Identify which frozen modules are actually aliases. #28655

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Merged
merged 10 commits into from
Oct 5, 2021
Merged

bpo-45020: Identify which frozen modules are actually aliases. #28655

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be15831
Add _PyImport_FrozenAliases.
ericsnowcurrently Sep 28, 2021
daba4a6
Add resolve_module_alias().
ericsnowcurrently Sep 28, 2021
2800c67
Use resolve_module_alias() in find_frozen().
ericsnowcurrently Sep 29, 2021
f1adc60
Use SimpleNamespace for spec.loader_state.
ericsnowcurrently Sep 30, 2021
905d5f5
Add origname to spec.loader_state.
ericsnowcurrently Sep 30, 2021
3b1e99f
Only clear spec.loader_state.data.
ericsnowcurrently Sep 30, 2021
1e66ebc
Fix up early-imported frozen modules.
ericsnowcurrently Sep 30, 2021
900af0f
Allow loader_state.origname to be set already.
ericsnowcurrently Oct 1, 2021
223a786
Add a NEWS entry.
ericsnowcurrently Oct 1, 2021
7d23290
Identify if the aliased module is a package or not.
ericsnowcurrently Oct 1, 2021
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Allow loader_state.origname to be set already.
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@ericsnowcurrently
ericsnowcurrently committed Oct 5, 2021
commit 900af0f5b4d62acd95300a2d5d89be016ffb2c0b
18 changes: 11 additions & 7 deletions Lib/importlib/_bootstrap.py
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Original file line number Diff line number Diff line change
Expand Up @@ -831,14 +831,18 @@ def _setup_module(cls, module):
assert not ispkg or not module.__path__, module.__path__
spec = module.__spec__
assert not ispkg or not spec.submodule_search_locations
assert spec.loader_state is None

origname = vars(module).pop('__origname__', None)
assert origname, 'see PyImport_ImportFrozenModuleObject()'
spec.loader_state = type(sys.implementation)(
data=None,
origname=origname,
)
if spec.loader_state is None:
spec.loader_state = type(sys.implementation)(
data=None,
origname=None,
)
elif not hasattr(spec.loader_state, 'data'):
spec.loader_state.data = None
if not getattr(spec.loader_state, 'origname', None):
origname = vars(module).pop('__origname__', None)
assert origname, 'see PyImport_ImportFrozenModuleObject()'
spec.loader_state.origname = origname

@classmethod
def find_spec(cls, fullname, path=None, target=None):
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0