python 导入包出错

问题遇到的现象和发生背景

python导入包时报错

问题相关代码，请勿粘贴截图

manager部分

from application import app, manager
from flask_script import Server
import www

##web server
manager.add_command( "runserver", Server( host='0.0.0.0',port=app.config['SERVER_PORT'],use_debugger = True ,use_reloader = True) )

def main():
    manager.run( )

if __name__ == '__main__':
    try:
        import sys
        sys.exit( main() )
    except Exception as e:
        import traceback
        traceback.print_exc()

application部分

from flask import Flask
from flask_script import Manager
from flask_sqlalchemy import SQLAlchemy
import os
class Application( Flask ):
    def __init__(self,import_name):
        super( Application,self ).__init__( import_name )
        self.config.from_pyfile( 'config/base_setting.py' )
        if "ops_config" in os.environ:
            self.config.from_pyfile( 'config/%s_setting.py'%os.environ['ops_config'] )

        db.init_app( self )

db = SQLAlchemy()
app = Application( __name__ )
manager = Manager( app )
运行结果及报错内容
Traceback (most recent call last):
  File "D:\orders\manager.py", line 2, in <module>
    from application import app, manager
  File "D:\orders\application.py", line 3, in <module>
    from flask_script import Manager
ModuleNotFoundError: No module named 'flask_script'

是不是没有安装flask_script包
在终端重新安装下flask_script包：
pip install flask_script

或者参考


ModuleNotFoundError: No module named 'flask_script' - 简书 启动flask项目时，报错ModuleNotFoundError: No module named 'flask_script'，于是使用命令pip3 install fla... https://www.jianshu.com/p/303b549b1dc5

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