python连接数据库报错

Traceback (most recent call last):
File "src\pymssql_pymssql.pyx", line 647, in pymssql._pymssql.connect
File "src\pymssql_mssql.pyx", line 2109, in pymssql._mssql.connect
File "src\pymssql_mssql.pyx", line 701, in pymssql._mssql.MSSQLConnection.init
File "src\pymssql_mssql.pyx", line 1818, in pymssql._mssql.maybe_raise_MSSQLDatabaseException
File "src\pymssql_mssql.pyx", line 1835, in pymssql._mssql.raise_MSSQLDatabaseException
pymssql._mssql.MSSQLDatabaseException: (20010, b'DB-Lib error message 20010, severity 8:\nUnable to allocate sufficient memory (localhost)\nOperating System error during No error (12)\n')
用python连接数据库报了这样的错,大家知道这是因为什么吗?

你下载好有没有测试数据库有问题没有?