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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Minor bug in CryptoTrade class not showing symbol","articleBody":"Original code\r\n```\r\n@dataclass\r\nclass CryptoTrade:\r\n    \"CryptoTrade contains trade data for a crypto pair.\"\r\n    event_type: Optional[Union[str, EventType]] = None\r\n    symbol: Optional[str] = None\r\n    exchange: Optional[int] = None\r\n    id: Optional[str] = None\r\n    price: Optional[float] = None\r\n    size: Optional[float] = None\r\n    conditions: Optional[List[int]] = None\r\n    timestamp: Optional[int] = None\r\n    received_timestamp: Optional[int] = None\r\n\r\n    @staticmethod\r\n    def from_dict(d):\r\n        return CryptoTrade(\r\n            d.get(\"ev\", None),\r\n            d.get(\"sym\", None),\r\n            d.get(\"x\", None),\r\n            d.get(\"i\", None),\r\n            d.get(\"p\", None),\r\n            d.get(\"s\", None),\r\n            d.get(\"c\", None),\r\n            d.get(\"t\", None),\r\n            d.get(\"r\", None),\r\n        )\r\n```\r\nProduces the following output\r\n```\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292583', price=2668.09, size=0.001, conditions=[1], timestamp=1651897896019, received_timestamp=1651897896029)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292584', price=2668.09, size=0.00346924, conditions=[1], timestamp=1651897896019, received_timestamp=1651897896029), CryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292585', price=2668.1, size=0.02227499, conditions=[1], timestamp=1651897896019, received_timestamp=1651897029), CryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292587', price=2668.11, size=0.02726552, conditions=[1], timestamp=1651897896019, received_timestamp=1651897896029), CryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292588', price=2668.11, size=0.04693849, conditions=[1], timestamp=1651897896019, received_timestamp=1651897896029), \r\nCryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292589', price=2668.43, size=0.798, conditions=[1], timestamp=1651897896019, received_timestamp=1651897896029)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292590', price=2668.5, size=0.001, conditions=[1], timestamp=1651897897236, received_timestamp=1651897897245)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292591', price=2668.5, size=0.001, conditions=[1], timestamp=1651897897236, received_timestamp=1651897897245), CryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292592', price=2668.5, size=0.00173462, conditions=[1], timestamp=1651897897236, received_timestamp=1651897897245), CryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292593', price=2668.63, size=0.02728372, conditions=[1], timestamp=1651897897236, received_timestamp=1651897897245), \r\nCryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292594', price=2668.66, size=0.22281884, conditions=[1], timestamp=1651897897236, received_timestamp=1651897897245)]    \r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292595', price=2668.54, size=0.001, conditions=[1], timestamp=1651897898157, received_timestamp=1651897898165)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292596', price=2668.54, size=0.001, conditions=[1], timestamp=1651897898157, received_timestamp=1651897898165), CryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292597', price=2668.54, size=0.00086731, conditions=[1], timestamp=1651897898157, received_timestamp=1651897898165), CryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292598', price=2668.54, size=0.00434975, conditions=[1], timestamp=1651897898157, received_timestamp=1651897898165)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292599', price=2668.53, size=0.001, conditions=[2], timestamp=1651897898476, received_timestamp=1651897898484)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292600', price=2668.53, size=0.001, conditions=[2], timestamp=1651897898476, received_timestamp=1651897898485), CryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292601', price=2668.53, size=0.001, conditions=[2], timestamp=1651897898476, received_timestamp=1651897898485), \r\nCryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292602', price=2668.53, size=0.001, conditions=[2], timestamp=1651897898476, received_timestamp=1651897898485)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol=None, exchange=2, id='1085319591', price=35906, size=0.00011582, conditions=[1], timestamp=1651897898715, received_timestamp=1651897898770)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol=None, exchange=2, id='1085319591', price=35906, size=0.00011582, conditions=[1], timestamp=1651897898715, received_timestamp=1651897898831)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol=None, exchange=1, id='327314603', price=35865.06, size=0.00277459, conditions=[1], timestamp=1651897898938, received_timestamp=1651897898949)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol=None, exchange=23, id='9a80e301-cb88-4bbe-b7cf-3e413d7f3714', price=2665.99, size=0.10262799, conditions=[2], timestamp=1651897898915, received_timestamp=1651897898962)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol=None, exchange=1, id='268292603', price=2668.51, size=0.19709093, conditions=[1], timestamp=1651897899222, received_timestamp=1651897899230)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol=None, exchange=23, id='943715f5-6603-4e55-b541-be84cc8e1f19', price=2666.42, size=0.04301937, conditions=[2], timestamp=1651897899482, received_timestamp=1651897899529)]\r\n```\r\n\r\nshould change  ```d.get(\"sym\", None)``` to ``` d.get(\"pair\", None)```\r\n```\r\n@dataclass\r\nclass CryptoTrade:\r\n    \"CryptoTrade contains trade data for a crypto pair.\"\r\n    event_type: Optional[Union[str, EventType]] = None\r\n    symbol: Optional[str] = None\r\n    exchange: Optional[int] = None\r\n    id: Optional[str] = None\r\n    price: Optional[float] = None\r\n    size: Optional[float] = None\r\n    conditions: Optional[List[int]] = None\r\n    timestamp: Optional[int] = None\r\n    received_timestamp: Optional[int] = None\r\n\r\n    @staticmethod\r\n    def from_dict(d):\r\n        return CryptoTrade(\r\n            d.get(\"ev\", None),\r\n            d.get(\"pair\", None),\r\n            d.get(\"x\", None),\r\n            d.get(\"i\", None),\r\n            d.get(\"p\", None),\r\n            d.get(\"s\", None),\r\n            d.get(\"c\", None),\r\n            d.get(\"t\", None),\r\n            d.get(\"r\", None),\r\n        )\r\n```\r\n\r\nNow output is okay\r\n```\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol='BTC-USD', exchange=1, id='327315546', price=35803.34, size=0.00058953, conditions=[2], timestamp=1651898146638, received_timestamp=1651898146647)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol='BTC-USD', exchange=1, id='327315547', price=35804.81, size=0.001, conditions=[1], timestamp=1651898146642, received_timestamp=1651898146652)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol='BTC-USD', exchange=1, id='327315548', price=35804.82, size=0.00169632, conditions=[1], timestamp=1651898146642, received_timestamp=1651898146652)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol='BTC-USD', exchange=1, id='327315549', price=35804.81, size=0.01368515, conditions=[1], timestamp=1651898147259, received_timestamp=1651898147268)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol='BTC-USD', exchange=1, id='327315550', price=35803.81, size=2.358e-05, conditions=[2], timestamp=1651898147312, received_timestamp=1651898147320)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol='ETH-USD', exchange=1, id='268293802', price=2663.29, size=0.001, conditions=[1], timestamp=1651898148429, received_timestamp=1651898148437)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol='ETH-USD', exchange=1, id='268293803', price=2663.35, size=0.02727959, conditions=[2], timestamp=1651898148472, received_timestamp=1651898148480)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol='BTC-USD', exchange=1, id='327315551', price=35805.95, size=0.00065328, conditions=[1], timestamp=1651898148604, received_timestamp=1651898148612)]\r\n\u003cclass 'list'\u003e [CryptoTrade(event_type='XT', symbol='BTC-USD', exchange=1, id='327315552', price=35805.95, size=0.00025053, conditions=[1], timestamp=1651898148808, received_timestamp=1651898148818)]\r\n```","author":{"url":"https://github.com/dobizz","@type":"Person","name":"dobizz"},"datePublished":"2022-05-07T04:43:27.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/164/client-python/issues/164"}