ModuleNotFoundError - PyMySQL for python 3

问题

I am trying to get a simple test program working on my machine that connects to a SQL DB. I pip installed and then uninstalled and then installed with pip3: pymysql. the issue I'm getting:

import PyMySQL ModuleNotFoundError: No module named 'PyMySQL'.

it can be found when i run the command pip list, but not found when running the program itself. I was perusing over other SO Q&A's but nothing helped. Thanks

回答1:

First insall PyMySQL using:

pip install PyMySQL

In python 3 it is pymysql, all in lower case

import pymysql

回答2:

Module names are case-sensitive, and if you take a look at this example in the GitHub repo, you'll see that the module should be imported as pymysql, which is consistent with the all-lowercase convention for modules spelled out in the PEP 8 style guide.

import pymysql.cursors

# Connect to the database
connection = pymysql.connect(host='localhost',
                             user='user',
                             password='passwd',
                             db='db',
                             charset='utf8mb4',
                             cursorclass=pymysql.cursors.DictCursor)
# ...

来源：https://stackoverflow.com/questions/48647617/modulenotfounderror-pymysql-for-python-3