Django uses the error solutions pymysql

Environment:
Ubuntu18.04
MySQL: 8.0
Python: 3.6.8
Django: 2.2.6
pymysql: 0.9.3

1. Installation pymysql
   pip install pymysql

2. The pymysql introduced into django

   The following code is written in the name of the package below __init__.py files and projects in the same directory:

   import pymysql
   
   pymysql.install_as_MySQLdb()

3. Django configuration in mysql, then start django service, we found being given as follows:

   File "/home/www/.local/share/virtualenvs/EduScore-UXZMOCwv/lib/python3.6/site-packages/django/db/backends/mysql/base.py", line 36, in <module>
       raise ImproperlyConfigured('mysqlclient 1.3.13 or newer is required; you have %s.' % Database.__version__)
   django.core.exceptions.ImproperlyConfigured: mysqlclient 1.3.13 or newer is required; you have 0.9.3.

   Solution:
   Use vim to open the /home/www/.local/share/virtualenvs/EduScore-UXZMOCwv/lib/python3.6/site-packages/django/db/backends/mysql/base.pyfile, comment out the following code

   #if version < (1, 3, 13):
   #    raise ImproperlyConfigured('mysqlclient 1.3.13 or newer is required; you have %s.' % Database.__version__)

4. Start django server found or an error, the error message is:

   AttributeError: 'str' object has no attribute 'decode'

   Solution:

   Find the corresponding file, an error will decode line can be changed to encode.