# HG changeset patch
# User Ludovic Chabant
# Date 1555683918 0
# Fri Apr 19 14:25:18 2019 +
# Branch stable
# Node ID 3611368a1af3037427eb59635c7dad8dab67c606
# Parent 4a8d9ed864754837a185a642170cde24392f9abf
py3: handle meta-path finders that only use pre-python3.4 API
diff --git a/mercurial/__init__.py b/mercurial/__init__.py
--- a/mercurial/__init__.py
+++ b/mercurial/__init__.py
@@ -54,7 +54,16 @@
if finder == self:
continue
-spec = finder.find_spec(fullname, path, target=target)
+# Originally the API was a `find_module` method, but it was
+# renamed to `find_spec` in python 3.4, with a new `target`
+# argument.
+find_spec_method = getattr(finder, 'find_spec', None)
+if find_spec_method:
+spec = find_spec_method(fullname, path, target=target)
+else:
+spec = finder.find_module(fullname)
+if spec is not None:
+spec = importlib.util.spec_from_loader(fullname, spec)
if spec:
break
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