From 004e65edf6be1eb4f71e365e274f23bd08780f55 Mon Sep 17 00:00:00 2001
From: Hiren <hiren.thakore58@gmail.com>
Date: Mon, 23 Feb 2026 23:07:32 -0500
Subject: [PATCH] fix: show full Optional[T] type in help instead of just
 Optional

Use repr() instead of __qualname__ to get full type representation.

Fixes google/python-fire#508
---
 fire/helptext.py | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/fire/helptext.py b/fire/helptext.py
index 347278da..6c237120 100644
--- a/fire/helptext.py
+++ b/fire/helptext.py
@@ -524,13 +524,9 @@ def _GetArgType(arg, spec):
   """
   if arg in spec.annotations:
     arg_type = spec.annotations[arg]
-    try:
-      return arg_type.__qualname__
-    except AttributeError:
-      # Some typing objects, such as typing.Union do not have either a __name__
-      # or __qualname__ attribute.
-      # repr(typing.Union[int, str]) will return ': typing.Union[int, str]'
-      return repr(arg_type)
+    # Use repr() to get full type representation including generic args (e.g., Optional[str])
+    # This fixes the bug where __qualname__ returns just "Optional" instead of "Optional[str]"
+    return repr(arg_type)
   return ''