Traceback (most recent call last):
File "manage.py", line 14, in <module>
manager.run()
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/flask_script/__init__.py", line 417, in run
result = self.handle(argv[0], argv[1:])
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/flask_script/__init__.py", line 386, in handle
res = handle(*args, **config)
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/flask_script/commands.py", line 216, in __call__
return self.run(*args, **kwargs)
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/flask_migrate/__init__.py", line 96, in wrapped
f(*args, **kwargs)
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/flask_migrate/__init__.py", line 210, in migrate
command.revision(config, message, autogenerate=True, sql=sql,
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/alembic/command.py", line 227, in revision
script_directory.run_env()
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/alembic/script/base.py", line 563, in run_env
util.load_python_file(self.dir, "env.py")
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/alembic/util/pyfiles.py", line 92, in load_python_file
module = load_module_py(module_id, path)
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/alembic/util/pyfiles.py", line 108, in load_module_py
spec.loader.exec_module(module) # type: ignore
File "<frozen importlib._bootstrap_external>", line 783, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "migrations/env.py", line 25, in <module>
str(current_app.extensions['migrate'].db.engine.url).replace('%', '%%'))
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/flask_sqlalchemy/__init__.py", line 998, in engine
return self.get_engine()
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/flask_sqlalchemy/__init__.py", line 1017, in get_engine
return connector.get_engine()
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/flask_sqlalchemy/__init__.py", line 594, in get_engine
self._engine = rv = self._sa.create_engine(sa_url, options)
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/flask_sqlalchemy/__init__.py", line 1027, in create_engine
return sqlalchemy.create_engine(sa_url, **engine_opts)
File "<string>", line 2, in create_engine
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/sqlalchemy/util/deprecations.py", line 309, in warned
return fn(*args, **kwargs)
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/sqlalchemy/engine/create.py", line 560, in create_engine
dbapi = dialect_cls.dbapi(**dbapi_args)
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/sqlalchemy/dialects/mysql/mysqldb.py", line 163, in dbapi
return __import__("MySQLdb")
ModuleNotFoundError: No module named 'MySQLdb'
进入mysqldb.py文件加入以下代码（无需纠结安装mysqldb）
import pymysql pymysql.install_as_MySQLdb()