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Adding the case where a closure not more contains a function in the recursion #926

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Adding the case where a closure not more contains a function in the recursion #926

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7 changes: 6 additions & 1 deletion bottle.py
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Original file line number Diff line number Diff line change
Expand Up @@ -582,14 +582,19 @@ def get_undecorated_callback(self):
closure_attr = '__closure__' if py3k else 'func_closure'
while hasattr(func, closure_attr) and getattr(func, closure_attr):
attributes = getattr(func, closure_attr)
prev_func = func
func = attributes[0].cell_contents

# in case of decorators with multiple arguments
if not isinstance(func, FunctionType):
# pick first FunctionType instance from multiple arguments
func = filter(lambda x: isinstance(x, FunctionType),
map(lambda x: x.cell_contents, attributes))
func = list(func)[0] # py3 support
func_list = list(func)
if len(func_list)==0:
func = prev_func
break
func = func_list[0] # py3 support
return func

def get_callback_args(self):
Expand Down