Fix to maintain order of package paths (#9887)

(cherry picked from commit 8314743)
pylint-dev · Aug 27, 2024 · f2961dc · f2961dc
1 parent b4c2951
commit f2961dc
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diff --git a/doc/whatsnew/fragments/9883.bugfix b/doc/whatsnew/fragments/9883.bugfix
@@ -0,0 +1,3 @@
+Fix to address indeterminacy of error message in case a module name is same as another in a separate namespace.
+
+Refs #9883
diff --git a/pylint/lint/pylinter.py b/pylint/lint/pylinter.py
@@ -666,10 +666,12 @@ def check(self, files_or_modules: Sequence[str]) -> None:
                 )
 
         extra_packages_paths = list(
-            {
-                discover_package_path(file_or_module, self.config.source_roots)
-                for file_or_module in files_or_modules
-            }
+            dict.fromkeys(
+                [
+                    discover_package_path(file_or_module, self.config.source_roots)
+                    for file_or_module in files_or_modules
+                ]
+            ).keys()
         )
 
         # TODO: Move the parallel invocation into step 3 of the checking process