Question

我正在尝试添加'PyMySQL，但它不断抛出

Traceback (most recent call last):
  File "/home/john/workspace/Python/sql/sql.py", line 1, in <module>
    import PyMySQL
ImportError: No module named 'PyMySQL'

我尝试通过pip安装并再次运行它，但错误并没有消失。关于什么是错的任何想法？

john@john-PC:$ sudo pip install PyMySQL
The directory '/home/john/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/home/john/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Collecting PyMySQL
/usr/local/lib/python2.7/dist-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:318: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#snimissingwarning.
  SNIMissingWarning
/usr/local/lib/python2.7/dist-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
  Downloading PyMySQL-0.7.9-py2-none-any.whl (78kB)
    100% |████████████████████████████████| 81kB 1.3MB/s 
Installing collected packages: PyMySQL
Successfully installed PyMySQL-0.7.9

john@john-PC:$ pip install PyMySQL
Requirement already satisfied (use --upgrade to upgrade): PyMySQL in /usr/local/lib/python2.7/dist-packages

john@john-PC:$ sudo apt-get install python3-pymysql
Reading package lists... Done
Building dependency tree       
Reading state information... Done
python3-pymysql is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 56 not upgraded.

sql.py

import PyMySQL
print("Here")

解。这是以下两个答案的组合，加上在线的错误报告。

apt-get install software-properties-common
add-apt-repository cloud-archive:mitaka
apt-get update && apt-get dist-upgrade 
sudo apt-get install python3-pymysql
import pymysql

Answer 1

尝试运行

sudo apt-get install python3-pymysql

for python3。

已在stackoverflow.com

处回答

Answer 2

安装＆＃34; PyMySQL＆＃34;之后，还需要更新the _init__.py，添加import pymysql pymysql.install_as_MySQLdb()并将base.py中的MySQLdb替换为pymysql。

Answer 3

我最近遇到了同样的问题。我用这个解决了它：

sudo pip-3.2 install pymysql**3**

pymysql3中的3个完全不同。

这是一个带有喘息的树莓派

Answer 4

即使在安装正确的软件包之后它抛出错误的原因也是因为正在使用的名称。它应该是“import pymysql”而不是“import PyMySQL”。这对我有用。

Answer 5

使用Debian 9＆amp;从BASH调用python3。

import pymysql

为我工作

import PyMySql

失败

追踪（最近一次通话）：文件＆＃34;＆＃34;，第1行，in NameError：name＆＃39; PyMySQL＆＃39;未定义

Answer 6

这对我有用：

#!/usr/bin/env python3

#Importing needed modules of PyMySQL
from pymysql import connect, err, sys, cursors

#Doing our connection
conn = connect( host = 'localhost',

cursor = conn.cursor( cursors.DictCursor );

Python - 没有名为'PyMySQL'的模块

6 个答案: