AttributeError: module 'pymysql' has no attribute 'escape_string' 什么意思
时间: 2023-06-16 16:06:52 浏览: 57
这个错误通常是由于在使用 Python 连接 MySQL 数据库时,使用了不支持 `escape_string` 方法的版本的 PyMySQL 库导致的。在较旧的 PyMySQL 版本中,该方法名为 `escape_string`,但在更新的版本中,该方法名已更改为 `escape_string`。
要解决此问题,可以尝试更新 PyMySQL 库到最新版本,或者使用其他支持 `escape_string` 方法的 MySQL Python 库,比如 `mysql-connector-python`。另外,也可以尝试手动安装 PyMySQL 的较旧版本,但这可能会导致其他问题。
相关问题
AttributeError: module 'pymysql' has no attribute 'escape_string'
This error occurs when you try to use the `escape_string` function of the `pymysql` module, but the function does not exist in the module.
The `escape_string` function is used to escape special characters in a string before it is used in a SQL query, to prevent SQL injection attacks.
To fix this error, you can try using the `escape` function instead, which is a similar function provided by the `pymysql` module for escaping strings.
Here's an example of how you can use the `escape` function:
```python
import pymysql
# establish a database connection
conn = pymysql.connect(host='localhost', user='root', password='password', db='mydb')
# create a cursor object
cursor = conn.cursor()
# define a string with special characters
my_string = "John'; DROP TABLE users; --"
# escape the string before using it in a SQL query
escaped_string = pymysql.escape(my_string)
# execute a SQL query using the escaped string
query = f"SELECT * FROM users WHERE name='{escaped_string}'"
cursor.execute(query)
# fetch the results and print them
results = cursor.fetchall()
print(results)
# close the database connection
conn.close()
```
attributeerror: module 'pymysql' has no attribute 'escape_string'
这个错误是因为在使用pymysql模块时,调用了escape_string方法,但是该模块并没有这个方法。可能是因为版本不同或者安装不完整导致的。可以尝试更新或重新安装pymysql模块来解决这个问题。