[python]pyramid 学习4 (views)-白红宇

[python]pyramid 学习4 (views)

阅读量：5788 次

发布时间：2019-06-18

本文共 1576 字，大约阅读时间需要 5 分钟。

Defining a View Callable as a Function

from pyramid.response import Response def hello_world(request): return Response('Hello world!')

Defining a View Callable as a Class

from pyramid.response import Response class MyView(object): def __init__(self, request):         self.request = request def __call__(self): return Response('hello')

HTTP异常 (pyramid.httpexceptions)

抛出401的第一种方法

from pyramid.httpexceptions import HTTPUnauthorized def aview(request): raise HTTPUnauthorized()

抛出401的第二种方法

from pyramid.httpexceptions import exception_response def aview(request): raise exception_response(401)

403 pyramid.httpexceptions.HTTPForbidden. 404 pyramid.httpexceptions.HTTPNotFound

自定义异常

class ValidationFailure(Exception): def __init__(self, msg):         self.msg = msg from pyramid.view import view_config from helloworld.exceptions import ValidationFailure @view_config(context=ValidationFailure) def failed_validation(exc, request):     response =  Response('Failed validation: %s' % exc.msg)     response.status_int = 500 return response

header重定向

from pyramid.httpexceptions import HTTPFound def myview(request): return HTTPFound(location='http://example.com')

获取POST数据

def myview(request):     firstname = request.params['firstname']     lastname = request.params['lastname'] def myview(request): # the .decode('utf-8') will break below if there are any high-order     # characters in the firstname or lastname     firstname = request.params['firstname'].decode('utf-8')     lastname = request.params['lastname'].decode('utf-8')

复习一下 route中获取数据(GET)