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json: call self.default for unsupported floats

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bpo-36841: allows `default` option to override unsupported float behavior,
instead of unconditional ValueError.
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Min RK 2021-09-30 13:02:56 +02:00 • committed by GitHub
parent b34dd58fee
commit 528fe30c38
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1 changed files with 6 additions and 3 deletions
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9
Lib/json/encoder.py
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@ -176,6 +176,11 @@ class JSONEncoder(object):
return JSONEncoder.default(self, o)
"""
if isinstance(o, float):
raise ValueError(
"Out of range float values are not JSON compliant: " +
repr(o)
)
raise TypeError(f'Object of type {o.__class__.__name__} '
f'is not JSON serializable')
@ -236,9 +241,7 @@ class JSONEncoder(object):
return _repr(o)
if not allow_nan:
raise ValueError(
"Out of range float values are not JSON compliant: " +
repr(o))
return self.default(o)
return text