get started:installtutorial

learn more:api referencecookbookcode examples

dive in:source codemailing listissue tracker

“Think about the ideal way to write a web app.Write the code to make it happen.” [more...]

home > Django style multiple apps with web.py

Django style multiple apps with web.pyHere is a hack to support decoupling urls for multiple applications using web.py

suppose we have two applications blog and wiki and we want to put them in sameproject.

This is the main driver.

"""run.py""" import blog

import wiki

import delegate

mapping = (

("/blog", blog.urls, blog),

("/wiki", wiki.urls, wiki)

)

if __name__ == "__main__":

delegate.run(mapping)

The wiki application:

"""wiki.py"""

urls = (

"/", "welcome",

"/hello", "hello" )

class welcome:

def GET(self):

print "welcome wiki"

class hello:

def GET(self):

print "hello wiki"

The blog application:

"""blog.py"""

urls = (

"/", "welcome",

"/hello", "hello" )

class welcome:

def GET(self):

print "welcome blog"

class hello:

def GET(self):

print "hello blog"

And this is the hack for supporting multiple application abstration.

"""delegate.py""" import web

import types

def delegate_apps(mapping):

"""Delegates appropriate app based on prefix.

mapping should be tuple of (prefix, urls, fvars).

""" def f():

for prefix, urls, fvars in mapping:

if type(fvars) == types.ModuleType:

fvars = fvars.__dict__

if web.ctx.path.startswith(prefix):

path = web.ctx.path[len(prefix):]

# it will be better if web.request.handle takes path also as argument.

# return web.request.handle(mapping, fvars, path)

web.ctx.path = path

return web.request.handle(urls, fvars)

else:

return web.notfound()

return f

def run(mapping):

"""Starts web.py server with the specified mapping.

mapping should be tuple of (prefix, urls, fvars).

""" handler = delegate_apps(mapping)

web.run(handler, {})

started by Aaron Swartz (webpy@aaronsw.com)

fork this page on GitHub