Confusion About Classes
steven.bethard at gmail.com
Tue Dec 28 02:00:12 CET 2004
> I've been playing like mad with all sorts of python modules..but I
> still can't seem to get my head around the proper use of a class and
> self. The question stems from this code I made(snippet):
[snip misaligned code]
When posting to c.l.py it's greatly appreciated if you use spaces
instead of tabs in your code. Many newsreaders strip out tabs.
> The goal is to create a create_server object with the given parameters,
> and then call the method createUniversalConfig() without passing and
> parameters to it.
Sounds like you want to write:
self.parser.set('score', 'domain', self.score_domain)
self.parser.set('score', 'server', self.score_servername)
self.parser.set('score', 'server', self.score_port)
Then you can do something like:
cs = create_server(... appropriate arguments ...)
However, this will only work if somewhere previously (probably
__init__), you wrote assignment statements like:
self.score_domain = ...
self.score_servername = ...
self.score_port = ...
Looking at your code, I don't see that you've done this anywhere. Where
should score_domain, score_servername and score_port be coming from?
Are they the same as the 'domain', 'servername' and 'httpport'
parameters to __init__? If so, you should write your code like:
self.parser.set('score', 'domain', self.domain)
self.parser.set('score', 'server', self.servername)
self.parser.set('score', 'server', self.__httpport)
As an aside, there's probably no need to prefix your variables with
double-underscores -- this causes name mangling that's generally not
necessary in a "we're all consenting adults" language like Python.
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