Correct handling of functions with only kwarg args in getcallargs (closes #11256)
A patch from Daniel Urban.
diff --git a/Lib/inspect.py b/Lib/inspect.py
index 33065f5..b0b2d3a 100644
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -943,8 +943,14 @@
f_name, 'at most' if defaults else 'exactly', num_args,
'arguments' if num_args > 1 else 'argument', num_total))
elif num_args == 0 and num_total:
- raise TypeError('%s() takes no arguments (%d given)' %
- (f_name, num_total))
+ if varkw:
+ if num_pos:
+ # XXX: We should use num_pos, but Python also uses num_total:
+ raise TypeError('%s() takes exactly 0 arguments '
+ '(%d given)' % (f_name, num_total))
+ else:
+ raise TypeError('%s() takes no arguments (%d given)' %
+ (f_name, num_total))
for arg in args:
if isinstance(arg, str) and arg in named:
if is_assigned(arg):