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Merge #16057: Clarify why the base method default is called in custom encoders. 

Original patch by Kushal Das.
This commit is contained in:
R David Murray 2013-03-17 21:53:23 -04:00
parent 3e2fe05e62 dd246171e4
commit 1f2a49cfc6
2 changed files with 3 additions and 0 deletions
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2
Doc/library/json.rst
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@ -83,6 +83,7 @@ Extending :class:`JSONEncoder`::
... def default(self, obj): ... def default(self, obj):
... if isinstance(obj, complex): ... if isinstance(obj, complex):
... return [obj.real, obj.imag] ... return [obj.real, obj.imag]
... # Let the base class default method raise the TypeError
... return json.JSONEncoder.default(self, obj) ... return json.JSONEncoder.default(self, obj)
... ...
>>> json.dumps(2 + 1j, cls=ComplexEncoder) >>> json.dumps(2 + 1j, cls=ComplexEncoder)
@ -431,6 +432,7 @@ Encoders and Decoders
pass pass
else: else:
return list(iterable) return list(iterable)
# Let the base class default method raise the TypeError
return json.JSONEncoder.default(self, o) return json.JSONEncoder.default(self, o)

1
Lib/json/encoder.py
View File

@ -166,6 +166,7 @@ class JSONEncoder(object):
pass pass
else: else:
return list(iterable) return list(iterable)
# Let the base class default method raise the TypeError
return JSONEncoder.default(self, o) return JSONEncoder.default(self, o)
""" """