Flask-web实现Python小问题汇总

1.python3中无unicode，已经变成str

 

Method Not Allowed
The method is not allowed for the requested URL.
本地测试Flask项目程序的时候遇到的，原因有可能是你的此条route('url')少了第二个参数，或者比如你使用post方式获取，但是并没有声明post

  File "/Users/lovehxy/.virtualenvs/flask/lib/python3.4/site-packages/wtforms/fields/core.py", line 175, in validate
    stop_validation = self._run_validation_chain(form, chain)
  File "/Users/lovehxy/.virtualenvs/flask/lib/python3.4/site-packages/wtforms/fields/core.py", line 195, in _run_validation_chain
    validator(form, self)
TypeError: __init__() takes from 1 to 2 positional arguments but 3 were given

原因是：DataRequired需要加上()
email = StringField('email',validators=[DataRequired()])