Raise TypeError if the name given to importlib.__import__() lacks an rpartition

attribute. Was throwing AttributeError before. Discovered when running
test_builtin against importlib.

This exception change is specific to importlib.__import__() and does not apply to
import_module() as it is being done for compatibility reasons only.

1 files changed, 22 insertions, 0 deletions

diff --git a/Lib/importlib/test/import_/test_api.py b/Lib/importlib/test/import_/test_api.py
new file mode 100644
index 0000000..9075d42
--- /dev/null
+++ b/Lib/importlib/test/import_/test_api.py
@@ -0,0 +1,22 @@
+from . import util
+import unittest
+
+
+class APITest(unittest.TestCase):
+
+    """Test API-specific details for __import__ (e.g. raising the right
+    exception when passing in an int for the module name)."""
+
+    def test_name_requires_rparition(self):
+        # Raise TypeError if a non-string is passed in for the module name.
+        with self.assertRaises(TypeError):
+            util.import_(42)
+
+
+def test_main():
+    from test.support import run_unittest
+    run_unittest(APITest)
+
+
+if __name__ == '__main__':
+    test_main()