我是 python 新手,我正在努力完成这项工作。我正在使用 Python 2.7 和 PostgreSQL 9.3:
#! F:\Python2.7.6\python
import psycopg2
class Database:
host = "192.168.56.101"
user = "testuser"
passwd = "passwd"
db = "test"
def __init__(self):
self.connection = psycopg2.connect( host = self.host,
user = self.user,
password = self.passwd,
dbname = self.db )
self.cursor = self.connection.cursor
def query(self, q):
cursor = self.cursor
cursor.execute(q)
return cursor.fetchall()
def __del__(self):
self.connection.close()
if __name__ == "__main__":
db = Database()
q = "DELETE FROM testschema.test"
db.query(q)
但是我收到一个错误“AttributeError:'builtin_function_or_method'对象没有属性'execute'”。我想我应该在 Database 类中放一些类似 self.execute = something 的东西,但我不知道我到底需要放什么。有什么建议么?