lask db migrate -m "first" 报错 No module named 'pymysql'

Question

问题遇到的现象和发生背景

使用FLask-Migrate 移植
输入命令 flask db migrate -m "first"

用代码块功能插入代码，请勿粘贴截图

flask db migrate -m "first"
Usage: flask db migrate [OPTIONS]      
Try 'flask db migrate --help' for help.

Error: While importing "app", an ImportError was raised:

Traceback (most recent call last):
  File "D:\anaconda\lib\site-packages\flask\cli.py", line 240, in locate_app
    __import__(module_name)
  File "D:\anaconda\project\flask-ORM71\app.py", line 54, in <module>
    db.drop_all()
  File "D:\anaconda\lib\site-packages\flask_sqlalchemy\__init__.py", line 1102, in drop_all
    self._execute_for_all_tables(app, bind, 'drop_all')
  File "D:\anaconda\lib\site-packages\flask_sqlalchemy\__init__.py", line 1086, in _execute_for_all_tables
    op(bind=self.get_engine(app, bind), **extra)
  File "D:\anaconda\lib\site-packages\flask_sqlalchemy\__init__.py", line 1017, in get_engine
    return connector.get_engine()
  File "D:\anaconda\lib\site-packages\flask_sqlalchemy\__init__.py", line 594, in get_engine
    self._engine = rv = self._sa.create_engine(sa_url, options)
  File "D:\anaconda\lib\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 "D:\anaconda\lib\site-packages\sqlalchemy\util\deprecations.py", line 298, in warned
    return fn(*args, **kwargs)
  File "D:\anaconda\lib\site-packages\sqlalchemy\engine\create.py", line 548, in create_engine
    dbapi = dialect_cls.dbapi(**dbapi_args)
  File "D:\anaconda\lib\site-packages\sqlalchemy\dialects\mysql\pymysql.py", line 68, in dbapi
    return __import__("pymysql")
ModuleNotFoundError: No module named 'pymysql'

PS D:\anaconda\project\flask-ORM71> 

运行结果及报错内容

报错：Error: While importing "app", an ImportError was raised:
no model named "pymysql"

我的解答思路和尝试过的方法

修改migrate的版本，不能安装低版本的migrate

我想要达到的结果

11

Answer 1

查看一下sitting的python 解释器，看是不是当前虚拟环境