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PYTHON-1309 cqlengine: Remove deepcopy on UserType deserialization #1192

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7 changes: 3 additions & 4 deletions cassandra/cqlengine/columns.py
Original file line number Diff line number Diff line change
Expand Up @@ -1037,12 +1037,11 @@ def to_python(self, value):
if value is None:
return

copied_value = deepcopy(value)
for name, field in self.user_type._fields.items():
if copied_value[name] is not None or isinstance(field, BaseContainerColumn):
copied_value[name] = field.to_python(copied_value[name])
if value[name] is not None or isinstance(field, BaseContainerColumn):
value[name] = field.to_python(value[name])

return copied_value
return value

def to_database(self, value):
if value is None:
Expand Down