更新旧的django / twisted python代码

Question

Well I have some old python code that seems to not work right, I have researched to the ends of the internet trying to find a fix.

def getURL(self, context):
    # Make this an absolute URL- currently it's required for
    # links placed in the RSS and XML feeds, and won't
    # hurt elsewhere.
    req = context['request']                                                                         
    port = req.host[2]
    hostname = req.getRequestHostname()
    if req.isSecure():
        default = 443
    else:
        default = 80
    if port == default:
        hostport = ''
    else:
        hostport = ':%d' % port
    path = posixpath.join('/stats',
                          *(tuple(self.target.pathSegments) + self.relativePathSegments))
    return quote('http%s://%s%s%s' % (
        req.isSecure() and 's' or '',
        hostname,
        hostport,
        path), "/:")

now I think its just the context['request'] giving me issues but I'm not sure. This code block was from the CIA.vc project ( link.py to be exact), so if something doesn't make sense check there

also the 1st error i get from python is:

File "/home/justasic/cia/cia/LibCIA/Web/Stats/Link.py", line 41, in getURL port = req.host[2] exceptions.TypeError: unindexable object

but I got more about the context['request'] not being defined after I found what I think was a simple fix

Answer 1

It seems to me like Context['request'] doesn't fit on there... where does Context come from? As param you get context all lowercase. Probably you sould use the param 'context' instead, so ...

a) make Context['request'] to context['request']

... or, if your are already using context in lowercase, and it's only a typo here on the post, then

b) I searched a while and found this snippet http://djangosnippets.org/snippets/2428/ ... so maybe something like this might work:

from django.template import resolve_variable

...

def getURL(self, context):
    req = resolve_variable('request', context)