[2.0.x] Fixed #29091 -- Fixed makemigrations crash if migrations directory doesn't have __init__.py.

Regression in aadd3aeb2ba3153e35bd805c80c901f289a6f333.

Backport of 0a37ea56d05208e31ed2f29fdffca65b6d92fa2e from master

2 files changed, 7 insertions, 0 deletions

diff --git a/tests/migrations/test_commands.py b/tests/migrations/test_commands.py
index 8caa0b5deb..8a77624e34 100644
--- a/tests/migrations/test_commands.py
+++ b/tests/migrations/test_commands.py
@@ -853,6 +853,13 @@ class MakeMigrationsTests(MigrationTestBase):
             call_command("makemigrations", stdout=out)
         self.assertIn("0001_initial.py", out.getvalue())
 
+    def test_makemigrations_no_init(self):
+        """Migration directories without an __init__.py file are allowed."""
+        out = io.StringIO()
+        with self.temporary_migration_module(module='migrations.test_migrations_no_init'):
+            call_command('makemigrations', stdout=out)
+        self.assertIn('0001_initial.py', out.getvalue())
+
     def test_makemigrations_migrations_announce(self):
         """
         makemigrations announces the migration at the default verbosity level.
diff --git a/tests/migrations/test_migrations_no_init/.gitkeep b/tests/migrations/test_migrations_no_init/.gitkeep
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/tests/migrations/test_migrations_no_init/.gitkeep