import json
json.loads(
    '{"Reply":{"Header":{"Method":"mGSSCBetHistory","ErrorCode": "0","MerchantID":"BETSTARtest","MessageID": "H140201152657m6k3f"},"Param":{"TotalRecord":"1","ErrorDesc": ""}}}'
    )
Ошибка синтаксического анализа строки JSON в Python