paste deploy python ini 配置文件简单说明

xxggmmxx

配合 http://www.python.org/dev/peps/pep-0333/
http://pythonpaste.org/deploy/
看下面的example（从网络上改造而来，出处URL也搞忘记的），很快会对python的paste如何组织wsgi有一个简单的了解，
pastedeploylab.ini

[DEFAULT]  
key1=value1  
key2=value2  
key3=values  
[composite:pdl]  
use=egg:Paste#urlmap  
/:root  
/calc:calc  
[filter:logrequest]  
username = root  
password = root123  
paste.filter_factory = pastedeploylab:LogFilter.factory  
[filter:testrequest]  
username = admin
password = admin
paste.filter_factory = pastedeploylab:TestFilter.factory  
[app:calculator]  
description = This is an "+-*/" Calculator   
paste.app_factory = pastedeploylab:Calculator.factory  
[app:showversion]  
version = 1.0.0  
paste.app_factory = pastedeploylab:ShowVersion.factory  
[pipeline:root]  
pipeline = logrequest testrequest showversion
[pipeline:calc]  
pipeline = logrequest calculator


pastedeployed.py

import os
import webob
from webob import Request
from webob import Response
from paste.deploy import loadapp
from wsgiref.simple_server import make_server
#Filter
class LogFilter():
def __init__(self,app):
self.app = app
def __call__(self,environ,start_response):
print "filter:LogFilter is called."
return self.app(environ,start_response)
@classmethod
def factory(cls, global_conf, **kwargs):
print "in LogFilter.factory", global_conf, kwargs
return LogFilter

class TestFilter():
def __init__(self,app):
self.app = app
def __call__(self,environ,start_response):
print "filter:TestFilter is called."
return self.app(environ,start_response)
@classmethod
def factory(cls, global_conf, **kwargs):
print "in TestFilter.factory", global_conf, kwargs
return TestFilter
class ShowVersion():
def __init__(self):
pass
def __call__(self,environ,start_response):
start_response("200 OK",[("Content-type", "text/plain")])
return ["Paste Deploy LAB: Version = 1.0.0",]
@classmethod
def factory(cls,global_conf,**kwargs):
print
print "in ShowVersion.factory:"
print "global_conf=", global_conf
print "kwargs     =", kwargs
return ShowVersion()

class Calculator():
def __init__(self):
pass
def __call__(self,environ,start_response):
req = Request(environ)
res = Response()
res.status = "200 OK"
res.content_type = "text/plain"
# get operands
operator = req.GET.get("operator", None)
operand1 = req.GET.get("operand1", None)
operand2 = req.GET.get("operand2", None)
print req.GET
opnd1 = int(operand1)
opnd2 = int(operand2)
if operator == u'plus':
opnd1 = opnd1 + opnd2
elif operator == u'minus':
opnd1 = opnd1 - opnd2
elif operator == u'star':
opnd1 = opnd1 * opnd2
elif operator == u'slash':
opnd1 = opnd1 / opnd2
res.body = "%s /nRESULT= %d" % (str(req.GET) , opnd1)
return res(environ,start_response)
@classmethod
def factory(cls,global_conf,**kwargs):
print "in Calculator.factory", global_conf, kwargs
return Calculator()

if __name__ == '__main__':
configfile="pastedeploylab.ini"
appname="pdl"
wsgi_app = loadapp("config:%s" % os.path.abspath(configfile), appname)
server = make_server('localhost',8989,wsgi_app)
  server.serve_forever()