fix super call in list comprehension (#5393)

davidism · web-flow · commit d7209a957004 · 2024-02-03T12:39:33.000-08:00
diff --git a/CHANGES.rst b/CHANGES.rst
@@ -4,6 +4,8 @@ Version 3.0.2
 Unreleased
 
 -   Correct type for ``jinja_loader`` property. :issue:`5388`
+-   Fix error with ``--extra-files`` and ``--exclude-patterns`` CLI options.
+    :issue:`5391`
 
 
 Version 3.0.1
diff --git a/src/flask/cli.py b/src/flask/cli.py
@@ -858,7 +858,9 @@ def convert(
         self, value: t.Any, param: click.Parameter | None, ctx: click.Context | None
     ) -> t.Any:
         items = self.split_envvar_value(value)
-        return [super().convert(item, param, ctx) for item in items]
+        # can't call no-arg super() inside list comprehension until Python 3.12
+        super_convert = super().convert
+        return [super_convert(item, param, ctx) for item in items]
 
 
 @click.command("run", short_help="Run a development server.")
diff --git a/tests/test_cli.py b/tests/test_cli.py
@@ -679,3 +679,8 @@ def test_cli_empty(app):
 
     result = app.test_cli_runner().invoke(args=["blue", "--help"])
     assert result.exit_code == 2, f"Unexpected success:\n\n{result.output}"
+
+
+def test_run_exclude_patterns():
+    ctx = run_command.make_context("run", ["--exclude-patterns", __file__])
+    assert ctx.params["exclude_patterns"] == [__file__]
