пробую:
a = { "user_id" : "1" }
c_query = "select * from `user` where user_id=%(user_id)s"
c_Cursor.execute( c_query, a )
c_Cursor.execute( c_query, *a )
a = { "user_id" : "1" }
c_query = "select * from `user` where user_id=%(user_id)s"
c_Cursor.execute( c_query, a )
c_Cursor.execute( c_query, *a )