<>hello.py遇见的几个坑
在看<<flask web开发>>文章中第16页,在做示例2-3时,
from flask import Flask
app = Flask(__name__)
from flask.ext.script import Manager
manager = Manager(app)
@app.route('/user/<name>')
def user(name):
return '<h1>Hello, %s!</h1>' % name
if __name__=='__main__':
manager.run()
在运行时报以下错误:
E:\Python36>python hello.py
hello.py:42: ExtDeprecationWarning: Importing flask.ext.script is deprecated, use flask_script instead.
from flask.ext.script import Manager
usage: hello.py [-?] {shell,runserver} ...
positional arguments:
{shell,runserver}
shell Runs a Python shell inside Flask application context.
runserver Runs the Flask development server i.e. app.run()
optional arguments:
-?, --help show this help message and exit
这里面告诉了我们两条有用的信息,第一条就是,我们应该导入from flask_script import Manager
第二条就是运行的时候,我们应该写成E:\Python36>python hello.py runserver
最后完美解决!