Closes issue #18598: Have the exception message for

importlib.import_module() include the name of the module when the
'package' argument is missing but needed.

1 files changed, 3 insertions, 1 deletions

diff --git a/Lib/importlib/__init__.py b/Lib/importlib/__init__.py
index aab54a7..6732977 100644
--- a/Lib/importlib/__init__.py
+++ b/Lib/importlib/__init__.py
@@ -85,7 +85,9 @@ def import_module(name, package=None):
     level = 0
     if name.startswith('.'):
         if not package:
-            raise TypeError("relative imports require the 'package' argument")
+            msg = ("the 'package' argument is required to perform a relative "
+                   "import for {!r}")
+            raise TypeError(msg.format(name))
         for character in name:
             if character != '.':
                 break