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Initial stab at supporting pandas NAType with json serialization #3336

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Initial stab at supporting pandas NAType with json serialization #3336

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9 changes: 9 additions & 0 deletions packages/python/plotly/_plotly_utils/utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -127,6 +127,7 @@ def default(self, obj):
self.encode_as_list, # because some values have `tolist` do last.
self.encode_as_decimal,
self.encode_as_pil,
self.encode_as_NAType,
)
for encoding_method in encoding_methods:
try:
Expand All @@ -135,6 +136,14 @@ def default(self, obj):
pass
return _json.JSONEncoder.default(self, obj)

@staticmethod
def encode_as_NAType(obj):
from pandas._libs.missing import NAType
if isinstance(obj, NAType):
return None
else:
raise NotEncodable

@staticmethod
def encode_as_plotly(obj):
"""Attempt to use a builtin `to_plotly_json` method."""
Expand Down