[英]python class definition problrm
這是我嘗試連接到數據庫的第一個 python 代碼,我在名為 mysqlConnection.py 的 python 文件中定義了一個名為 Database 的類
但是當我運行代碼時,我收到此錯誤:
Traceback (most recent call last):
File "mysqlConnection.py", line 3, in <module>
class Database:
File "mysqlConnection.py", line 27, in Database
db = Database()
我的代碼是:
import MySQLdb
class Database:
host = "localhost"
user = "root"
passwd = "root"
db = "pitest"
def __init__(self):
self.connection = MySQLdb.connect( host = self.host,
user = self.user,
passwd = self.passwd,
db = self.db)
def query(self, q):
cursor = self.connection.cursor( MySQLdb.cursors.DictCursor )
cursor.execute(q)
return cursor.fetchall()
def __del__(self):
self.connection.close()
if __name__ == '__main__':
db = Database()
q = "DELETE FROM users"
db.query(q)
q = """
INSERT INTO users (title, fname, sname, age, email)
VALUES ('A', 'Z', 'BIG Z', '20', 'raspberrypi@example.com'),
('B', 'X', 'BIG X', '30', 'raspberrypi@example.com'),
('C', 'Y', 'BIG Y', '24', 'raspberrypi@example.com'),
('A', 'W', 'BIG W', '29', 'raspberrypi@example.com')
"""
db.query(q)
q = """
SELECT * FROM users WHERE title = 'A'
"""
allreturnedusers = db.query(q)
for user in allreturnedusers:
print "Found: %s " % user['fname']
有人可以幫我嗎?
您的代碼從該行開始縮進不正確
if __name__ == '__main__':
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.