1 files changed, 4 insertions, 1 deletions
diff --git a/Lib/pydoc.py b/Lib/pydoc.py
index be41592..83c74a7 100755
--- a/Lib/pydoc.py
+++ b/Lib/pydoc.py
@@ -201,7 +201,10 @@ def _getargspec(object):
     try:
         signature = inspect.signature(object)
         if signature:
-            return str(signature)
+            name = getattr(object, '__name__', '')
+            # <lambda> function are always single-line and should not be formatted
+            max_width = (80 - len(name)) if name != '<lambda>' else None
+            return signature.format(max_width=max_width)
     except (ValueError, TypeError):
         argspec = getattr(object, '__text_signature__', None)
         if argspec: