[3.9] bpo-40924: Remove protocol for supplying Traversable objects from loaders (GH-20820)

Remove protocol that loaders can present a files method as found in importlib_resources 1.3-1.6 (added in Python 3.8b1).

1 files changed, 1 insertions, 11 deletions

diff --git a/Lib/importlib/_common.py b/Lib/importlib/_common.py
index ba7cbac3c9..c1204f0b8f 100644
--- a/Lib/importlib/_common.py
+++ b/Lib/importlib/_common.py
@@ -11,17 +11,7 @@ def from_package(package):
     Return a Traversable object for the given package.
 
     """
-    spec = package.__spec__
-    return from_traversable_resources(spec) or fallback_resources(spec)
-
-
-def from_traversable_resources(spec):
-    """
-    If the spec.loader implements TraversableResources,
-    directly or implicitly, it will have a ``files()`` method.
-    """
-    with contextlib.suppress(AttributeError):
-        return spec.loader.files()
+    return fallback_resources(package.__spec__)
 
 
 def fallback_resources(spec):