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[英]how to connect mysql database in python using pymysql,KEY ERROR
[英]Python mysql (using pymysql) failing to connect
我正在使用Python Pymysql連接到AWS RDS數據庫。 這些天一直在工作,但是現在我無法連接到數據庫。 但是,當我使用同一台機器和相同的憑據時,它確實通過Mysql工作台連接,但是通過pycharm無法連接。
代碼:
configParser = ConfigParser.RawConfigParser()
configFilePath = r'docs/credentials.cfg'
configParser.read(configFilePath)
User = configParser.get('aws-config','user')
Pswd = configParser.get('aws-config','pswd')
Host = configParser.get('aws-config','hostdps')
Databs = configParser.get('aws-config','databs')
db = pymysql.connect(host=Host, user=User, password=Pswd, db=Databs, charset='utf8mb4', cursorclass=pymysql.cursors.DictCursor,local_infile=True)
錯誤:
File "/usr/local/lib/python2.7/dist-packages/pymysql/__init__.py", line 90, in Connect return Connection(*args, **kwargs) File "/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 688, in __init__ self.connect() File "/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 906, in connect self._request_authentication() File "/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 1114, in _request_authentication auth_packet = self._read_packet() File "/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 961, in _read_packet packet_header = self._read_bytes(4) File "/usr/local/lib/python2.7/dist-packages/pymysql/connections.py", line 995, in _read_bytes "Lost connection to MySQL server during query (%s)" % (e,)) pymysql.err.OperationalError: (2013, 'Lost connection to MySQL server during query ([Errno 104] Connection reset by peer)')
如何確保在生產中不會發生這種情況? (防止將來發生此類故障)。
為什么你不使用這些連接池?
連接池可以自動管理連接,因此可以解決此問題。
您可以嘗試任何python mysql池。
池示例
為此, 此鏈接或直接使用github方便的代碼。 PyMysqlPool
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