[python]pyramid 学习5 (render)

最新推荐文章于 2025-08-01 00:07:18 发布

weixin_34236497

最新推荐文章于 2025-08-01 00:07:18 发布

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文章标签： python json

本文详细介绍了如何利用Pyramid框架构建RESTful API，并通过JSON、JSONP、Chameleon模板和Mako模板进行响应数据的渲染。文章还探讨了如何设置cookie和响应头部，以及如何实现404错误页面。通过实例代码，读者可以学习到如何在Web开发中高效地使用Pyramid框架。

输出json

from pyramid.view import view_config

@view_config(renderer='json')
def hello_world(request):
return {'content':'Hello!'}

或

config.add_view('myproject.views.my_view', renderer='json')

默认的render(string)

from pyramid.response import Response
from pyramid.view import view_config

@view_config(renderer='string')
def hello_world(request):
return {'content':'Hello!'}

输出

{'content': 'Hello!'}

JSONP Renderer

__init__.py

from pyramid.config import Configurator

config = Configurator()
config.add_renderer('jsonp', JSONP(param_name='callback'))

views.py

from pyramid.view import view_config

@view_config(renderer='jsonp')
def myview(request):
return {'greeting':'Hello world'}

Chameleon Template Renderers(*.pt *.txt)

http://chameleon.repoze.org/

 config.add_view('myproject.views.hello_world',
                 name='hello',
                 context='myproject.resources.Hello',
                 renderer='myproject:templates/foo.pt')

 config.add_view('myproject.views.hello_world',
                 name='hello',
                 context='myproject.resources.Hello',
                 renderer='myproject:templates/foo.txt')

Mako Template Renderer(*.mak *.mako)

http://www.makotemplates.org/

 config.add_view('myproject.views.hello_world',
                 name='hello',
                 context='myproject.resources.Hello',
                 renderer='foo.mak')

 config.add_view('myproject.views.hello_world',
                 name='hello',
                 context='myproject.resources.Hello',
                 renderer='mypackage:templates/foo.mak')

pyramid.response.Response

from pyramid.view import view_config

@view_config(name='gone', renderer='templates/gone.pt')
def myview(request):
    request.response.status = '404 Not Found'
return {'URL':request.URL}

Cookie

def view(request):
    request.response.set_cookie('abc', '123')
return request.response

Header

request.response

response_content_type
response_headerlist   // [('Set-Cookie', 'abc=123'), ('X-My-Header', 'foo')].
response_status
response_charset
response_cache_for