Fix a crash in parallel mode when the module's filepath is not set2.5

Close #3564

4 files changed, 23 insertions, 4 deletions

diff --git a/ChangeLog b/ChangeLog
index 3d0f8de51..c132b157a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,6 +2,7 @@
 Pylint's ChangeLog
 ------------------
 
+
 What's New in Pylint 2.5.4?
 ===========================
 
@@ -11,6 +12,10 @@ Release date: TBA
 
   Close #3690
 
+* Fix a crash in parallel mode when the module's filepath is not set
+
+  Close #3564
+
 
 What's New in Pylint 2.5.3?
 ===========================
diff --git a/pylint/lint/check_parallel.py b/pylint/lint/check_parallel.py
index 4f36f7f4a..201f1c878 100644
--- a/pylint/lint/check_parallel.py
+++ b/pylint/lint/check_parallel.py
@@ -71,6 +71,7 @@ def _worker_check_single_file(file_item):
     msgs = [_get_new_args(m) for m in _worker_linter.reporter.messages]
     return (
         _worker_linter.current_name,
+        filepath,
         _worker_linter.file_state.base_name,
         msgs,
         _worker_linter.stats,
@@ -98,11 +99,16 @@ def check_parallel(linter, jobs, files, arguments=None):
 
         all_stats = []
 
-        for module, base_name, messages, stats, msg_status in pool.imap_unordered(
-            _worker_check_single_file, files
-        ):
+        for (
+            module,
+            file_path,
+            base_name,
+            messages,
+            stats,
+            msg_status,
+        ) in pool.imap_unordered(_worker_check_single_file, files):
             linter.file_state.base_name = base_name
-            linter.set_current_module(module)
+            linter.set_current_module(module, file_path)
             for msg in messages:
                 msg = Message(*msg)
                 linter.reporter.handle_message(msg)
diff --git a/tests/regrtest_data/regression_missing_init_3564/subdirectory/file.py b/tests/regrtest_data/regression_missing_init_3564/subdirectory/file.py
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/tests/regrtest_data/regression_missing_init_3564/subdirectory/file.py
diff --git a/tests/test_self.py b/tests/test_self.py
index 6c27fd6cd..11399ab5c 100644
--- a/tests/test_self.py
+++ b/tests/test_self.py
@@ -783,3 +783,11 @@ class TestRunTC:
         path = join(HERE, "regrtest_data", "unused_variable.py")
         expected = "Your code has been rated at 7.50/10"
         self._test_output([path, "--jobs=2", "-ry"], expected_output=expected)
+
+    def test_regression_parallel_mode_without_filepath(self):
+        # Test that parallel mode properly passes filepath
+        # https://github.com/PyCQA/pylint/issues/3564
+        path = join(
+            HERE, "regrtest_data", "regression_missing_init_3564", "subdirectory/"
+        )
+        self._test_output([path, "-j2"], expected_output="No such file or directory")