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Make is_simple_callable consider fields which have default arguments

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This commit is contained in:
Diego Gaustein 2013-02-13 20:34:23 -03:00
parent 569dc67a12
commit 40b13a869b
1 changed files with 8 additions and 4 deletions
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12
rest_framework/fields.py
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@ -24,10 +24,14 @@ def is_simple_callable(obj):
"""
True if the object is a callable that takes no arguments.
"""
return (
(inspect.isfunction(obj) and not inspect.getargspec(obj)[0]) or
(inspect.ismethod(obj) and len(inspect.getargspec(obj)[0]) <= 1)
)
try:
args, _, _, defaults = inspect.getargspec(obj)
except TypeError:
return False
else:
len_args = len(args) if inspect.isfunction(obj) else len(args) - 1
len_defaults = len(defaults) if defaults else 0
return len_args <= len_defaults
def get_component(obj, attr_name):