Mailman 3 April 2007 - Twisted-web

Test
by Philippe Lafoucrière Aug. 5, 2021

Aug. 5, 2021

Hi all just a test

3 2

http://genshi.edgewall.org/wiki/GenshiPerformance
by Manlio Perillo April 28, 2007

April 28, 2007

I have found two simple benchmark on the genshi site. The basic benchmark is not a good benchmark, since the tests are not all equivalent. I have added a test for Nevow (the patch is attached). Before sending the patch to the genshi developers, I want to be sure that the code is the best possible. Here is the results: basic ===== Django: 1.35 ms Cheetah: 0.64 ms Nevow: 1.88 ms bigtable ======== Djange template 370.68 ms Nevow 947.84 ms Thanks and regards Manlio Perillo Index: bigtable.py =================================================================== --- bigtable.py (revisione 565) +++ bigtable.py (copia locale) @@ -9,10 +9,14 @@ import sys import timeit from StringIO import StringIO -from genshi.builder import tag -from genshi.template import MarkupTemplate try: + from genshi.builder import tag + from genshi.template import MarkupTemplate +except ImportError: + MarkupTemplate = None + +try: from elementtree import ElementTree as et except ImportError: et = None @@ -45,10 +49,16 @@ except ImportError: MyghtyInterpreter = None +try: + from nevow import inevow, rend, loaders +except ImportError: + inevow = None + table = [dict(a=1,b=2,c=3,d=4,e=5,f=6,g=7,h=8,i=9,j=10) for x in range(1000)] -genshi_tmpl = MarkupTemplate(""" +if MarkupTemplate: + genshi_tmpl = MarkupTemplate(""" <table xmlns:py="http://genshi.edgewall.org/"> <tr py:for="row in table"> <td py:for="c in row.values()" py:content="c"/> @@ -56,7 +66,7 @@ </table> """) -genshi_tmpl2 = MarkupTemplate(""" + genshi_tmpl2 = MarkupTemplate(""" <table xmlns:py="http://genshi.edgewall.org/">$table</table> """) @@ -184,11 +194,44 @@ </table>""") cs.render() +if inevow: + class NevowPage(rend.Page): + docFactory = loaders.xmlstr(""" +<table xmlns:n="http://nevow.com/ns/nevow/0.1" n:render="table"> + <tr n:pattern="row"> + <td n:pattern="col"><n:slot name="item" /></td> + </tr> +</table>""") + def render_table(self, ctx, data): + tag = ctx.tag + l = [] + rowPattern = tag.patternGenerator('row') + + for row in table: + tr = rowPattern() + colPattern = tr.patternGenerator('col') + ll = [] + + for col in row.values(): + td = colPattern() + td.fillSlots('item', col) + ll.append(td) + + l.append(tr[ll]) + + return tag[l] + + def test_nevow(): + """Nevow""" + + NevowPage().renderSynchronously() + + def run(which=None, number=10): tests = ['test_builder', 'test_genshi', 'test_genshi_builder', 'test_myghty', 'test_kid', 'test_kid_et', 'test_et', 'test_cet', 'test_clearsilver', - 'test_django'] + 'test_django', 'test_nevow'] if which: tests = filter(lambda n: n[5:] in which, tests) Index: basic.py =================================================================== --- basic.py (revisione 565) +++ basic.py (copia locale) @@ -4,7 +4,7 @@ import sys import timeit -__all__ = ['clearsilver', 'myghty', 'django', 'kid', 'genshi', 'cheetah'] +__all__ = ['clearsilver', 'myghty', 'django', 'kid', 'genshi', 'cheetah', 'nevow'] def genshi(dirname, verbose=False): from genshi.template import TemplateLoader @@ -105,11 +105,48 @@ return render def nevow(dirname, verbose=False): - # FIXME: can't figure out the API - from nevow.loaders import xmlfile - template = xmlfile('template.xml', templateDir=dirname).load() + from nevow import rend, loaders + + + class Base(rend.Page): + docFactory = loaders.xmlfile('template.xhtml', templateDir=dirname) + template = None # The template to be used, in derived class + + def render_title(self, ctx, data): + return 'Just a test' + + def macro_main(self, ctx): + return ctx.tag[ + loaders.xmlfile(self.template, ignoreDocType=True, templateDir=dirname) + ] + + class Main(Base): + template = 'main.xhtml' + + def __init__(self, items): + self.items = items + + def render_loop(self, ctx, data): + tag = ctx.tag + if not self.items: + return tag + + l = [] + itemPattern = tag.patternGenerator('item') + + for item in self.items: + li = itemPattern() + li.fillSlots('item', item) + l.append(li) + + l[-1].attributes['class'] = 'last' + return tag[l] + + + root = Main(['Number %d' % num for num in range(1, 15)]) + def render(): - print template + return root.renderSynchronously() if verbose: print render() Index: nevow/main.xhtml =================================================================== --- nevow/main.xhtml (revisione 0) +++ nevow/main.xhtml (revisione 0) @@ -0,0 +1,10 @@ +<!DOCTYPE html + PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" + "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> +<n:invisible xmlns="http://www.w3.org/1999/xhtml" + xmlns:n="http://nevow.com/ns/nevow/0.1"> + <h2>Loop</h2> + <ul n:render="loop"> + <li n:pattern="item"><n:slot name="item" /></li> + </ul> +</n:invisible> Proprietà modificate su: nevow/main.xhtml ___________________________________________________________________ Nome: svn:keywords + Id Index: nevow/template.xhtml =================================================================== --- nevow/template.xhtml (revisione 0) +++ nevow/template.xhtml (revisione 0) @@ -0,0 +1,20 @@ +<!DOCTYPE html + PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" + "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml" + xmlns:n="http://nevow.com/ns/nevow/0.1" + lang="en"> + <head> + <title n:render="title" /> + </head> + + <body> + <div id="header"> + <h1 n:render="title" /> + </div> + + <n:invisible n:macro="main" /> + + <div id="footer"></div> + </body> +</html> Proprietà modificate su: nevow/template.xhtml ___________________________________________________________________ Nome: svn:keywords + Id

1 0

excess-transports-1938-3 fixes athena problem with IE7
by Stefano Debenedetti April 18, 2007

April 18, 2007

hallo folks, I have an athena app that stopped working with IE7 so I did some tests and found out that you can replicate the bug: http://divmod.org/trac/ticket/1938 using IE7 on the /widgets/ demo from the nevow examples: 1) start a clock 2) stop it 3) start it again --> athena hangs for a few minutes + reloading page doesn't work (hangs indefinitely) The problem doesn't happen with IE6 nor FF. It doesn't happen with IE7 either when using this branch (instead of trunk or 0.9.18): http://divmod.org/trac/browser/branches/excess-transports-1938-3 (thank you mithrandi!) I was going to report this on the ticket page but I couldn't register. ciao ste

1 0

web2 post/put examples
by Mark Feldman April 17, 2007

April 17, 2007

Does anyone have a simple example of processing either a post or put on the server side using web2? I've had no problem serving up web pages from a variety of sources (files, database backends). The changes needed to support data back fro the user -- undoubtedly a set of deferred methods in the right place -- escape me. Thanks. Mark

2 1

parsing of the Host header and proxy
by Manlio Perillo April 17, 2007

April 17, 2007

Hi. I'm using nginx as a proxy server. It's mod_proxy is very good, so I do not have to use all the VHostMonster (ugly) stuff. However there is a problem with the parsing of the Host header: Twisted Web only parses the host name and not the port. This means that, as an example, when I use request.prePathURL, I got the wrong port. I have written a patch where I define a new getRequestHost method in the Request object, that returns a tuple (host, port), and a modified version of _prePathURL that uses the new method. However I'm not sure if I shoulf fill a ticked. Nobody else has the same problem? Thanks Manlio Perillo

1 1

confusion with general web serving
by Jonathan Vanasco April 17, 2007

April 17, 2007

I asked this on the -python list, some suggested I re-ask here. I'm trying to build a small daemon that does the following: 1_ parse the uri for the key to an image 2_ validate that key against db 3_ if not valid, render a 404 4_ if valid, map to an arbitrary file on the fs ( pulled from db ) 4b_ or check a bdb to see if its on the fs, pull a copy off of amazon's s3 otherwise and update the cachedb to note we have it The issue that I'm having: i originally tried doing this based on one of the chapters in the twisted o'reilley book. i ran into issues when I tried to render an image -- i couldn't figure out how to do that. somone on twisted web suggested i not use the protocol and instead use site (http://twistedmatrix.com/projects/web/documentation/howto/ using-twistedweb.html#auto2 ). i ran into issues when trying to render status codes and add in proxy functionality. I'm at a loss on what I should be using. can someone offer advice ? == oreilley style == class UserphotoRequestHandler(http.Request): def process(self): pass class UserphotoHttp(http.HTTPChannel): requestFactory = UserphotoRequestHandler class UserphotoHttpFactory(http.HTTPFactory): protocol= UserphotoHttp if __name__ == "__main__": from twisted.internet import reactor reactor.listenTCP(7087, UserphotoHttpFactory()) reactor.run( ) // Jonathan Vanasco | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | FindMeOn.com - The cure for Multiple Web Personality Disorder | Web Identity Management and 3D Social Networking | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | RoadSound.com - Tools For Bands, Stuff For Fans | Collaborative Online Management And Syndication Tools | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

2 2

web2.server: returning a deferred from IResource.render()
by ibu April 12, 2007

April 12, 2007

Hi, I'm running web2.server (much like the example at http://twistedmatrix.com/projects/web2/documentation/examples/intro/simple.… ) and everything works well, except if I return a deferred from an IResource.render() : This does NOT work: def render(self, req): #... deferredResponse = h.getResponse() # generates a deferred return deferredResponse While this DOES work: def render(self, req): #... deferredResponse = h.getResponse() # generates a deferred deferredResponse.callback(None) return deferredResponse.result According to the docs ( http://twistedmatrix.com/projects/web2/documentation/howto/object-traversal… ) I should Return an IResponse or a deferred which will fire an IResponse. What's wrong here? Does anybody have a working exmaple? To where does render() return its result? My versions: >>> twisted.__version__ '2.4.0' >>> twisted.web2.__version__ '0.2.0' >python -V Python 2.4.4 I hope somebody can help. Thx, ibu

3 3

disabling logging in Nevow
by Manlio Perillo April 5, 2007

April 5, 2007

Hi. Since I'm using nginx to serve a Nevow application via mod_proxy I do not need logging in Nevow. I have disabled logging changing a few line of code in appserver.NevowRequest and appserver.NevowSite: --- appserver.old.py 2007-04-05 23:03:02.000000000 +0200 +++ appserver.py 2007-04-05 23:04:03.000000000 +0200 @@ -156,8 +156,8 @@ if pageContext is not errorMarker: return defer.maybeDeferred( pageContext.tag.renderHTTP, pageContext - ).addBoth( - self._cbSetLogger, pageContext +# ).addBoth( +# self._cbSetLogger, pageContext ).addErrback( processingFailed, self, pageContext ).addCallback( @@ -306,6 +306,7 @@ ) def log(self, request): + return if request._logger is None: server.Site.log(self, request) else: Unfortunately I have noted (using Apache Bench) that there are very little performance improvements... Regards Manlio Perillo

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