43 lines
1.2 KiB
Python
43 lines
1.2 KiB
Python
"""
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This module implements a custom JSON writer to be able to serialize data
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returned by Weboob and pretty print the output JSON.
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Based upon
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http://stackoverflow.com/questions/11875770/how-to-overcome-datetime-datetime-not-json-serializable-in-python.
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"""
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import json
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from datetime import date, datetime
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from decimal import Decimal
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class CustomJSONEncoder(json.JSONEncoder):
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"""
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Custom JSONEncoder to support more types.
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"""
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def default(self, o):
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if isinstance(o, datetime) or isinstance(o, date):
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# Serialize datetime objects to ISO dates
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return o.isoformat()
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elif isinstance(o, Decimal):
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# Serialize Decimal objects to string
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return str(o)
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elif isinstance(o, Exception):
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# Serialize Exception objects to string representation
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return repr(o)
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return json.JSONEncoder.default(self, o)
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def pretty_json(obj):
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"""
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Pretty printing of JSON output, using the custom JSONEncoder.
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Args:
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obj: the object to JSON serialize.
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Returns:
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the pretty printed JSON string.
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"""
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return json.dumps(obj, sort_keys=True,
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indent=4, separators=(',', ': '),
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cls=CustomJSONEncoder)
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