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-rw-r--r--yt_dlp/compat/compat_utils.py26
1 files changed, 15 insertions, 11 deletions
diff --git a/yt_dlp/compat/compat_utils.py b/yt_dlp/compat/compat_utils.py
index 373389a46..f8679c98e 100644
--- a/yt_dlp/compat/compat_utils.py
+++ b/yt_dlp/compat/compat_utils.py
@@ -1,5 +1,6 @@
import collections
import contextlib
+import functools
import importlib
import sys
import types
@@ -22,6 +23,10 @@ def _is_package(module):
return '__path__' in vars(module)
+def _is_dunder(name):
+ return name.startswith('__') and name.endswith('__')
+
+
class EnhancedModule(types.ModuleType):
def __new__(cls, name, *args, **kwargs):
if name not in sys.modules:
@@ -44,7 +49,7 @@ class EnhancedModule(types.ModuleType):
try:
ret = super().__getattribute__(attr)
except AttributeError:
- if attr.startswith('__') and attr.endswith('__'):
+ if _is_dunder(attr):
raise
getter = getattr(self, '__getattr__', None)
if not getter:
@@ -53,7 +58,7 @@ class EnhancedModule(types.ModuleType):
return ret.fget() if isinstance(ret, property) else ret
-def passthrough_module(parent, child, allowed_attributes=None, *, callback=lambda _: None):
+def passthrough_module(parent, child, allowed_attributes=(..., ), *, callback=lambda _: None):
"""Passthrough parent module into a child module, creating the parent if necessary"""
parent = EnhancedModule(parent)
@@ -68,24 +73,23 @@ def passthrough_module(parent, child, allowed_attributes=None, *, callback=lambd
callback(attr)
return ret
+ @functools.lru_cache(maxsize=None)
def from_child(attr):
nonlocal child
-
- if allowed_attributes is None:
- if attr.startswith('__') and attr.endswith('__'):
+ if attr not in allowed_attributes:
+ if ... not in allowed_attributes or _is_dunder(attr):
return _NO_ATTRIBUTE
- elif attr not in allowed_attributes:
- return _NO_ATTRIBUTE
if isinstance(child, str):
child = importlib.import_module(child, parent.__name__)
- with contextlib.suppress(AttributeError):
- return getattr(child, attr)
-
if _is_package(child):
with contextlib.suppress(ImportError):
- return importlib.import_module(f'.{attr}', child.__name__)
+ return passthrough_module(f'{parent.__name__}.{attr}',
+ importlib.import_module(f'.{attr}', child.__name__))
+
+ with contextlib.suppress(AttributeError):
+ return getattr(child, attr)
return _NO_ATTRIBUTE