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| Date | Sun, 28 Aug 2011 20:42:32 -0500 |
| From | Chris Gonnerman <chris@gonnerman.org> |
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| Subject | Re: [Python] Why I need the parameter when the call doesn't use it? |
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On 08/28/2011 07:26 PM, Niklas Rosencrantz wrote: > I modularize code for a webapp and I want to know what python makes that a need to define an argument called self? Here's some code where I'm modularizing a recaptcha test to a function and the I must add the parameter "self" to the function is_submitter_human: > > ---- > class A(BaseHandler, blobstore_handlers.BlobstoreUploadHandler): > def is_submitter_human(self): is_submitter_human() isn't a function, it's a method. Methods are always called with a reference to the class instance (i.e. the object) that the method belongs to; this reference is the first argument, and is conventionally called "self". Though I've hacked it out, your code sample includes calls to other methods of the object, by calling self.methodname(). Without the first parameter, how else would you do it? -- Chris.
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Why I need the parameter when the call doesn't use it? Niklas Rosencrantz <niklasro@gmail.com> - 2011-08-28 17:26 -0700
Re: Why I need the parameter when the call doesn't use it? Ben Finney <ben+python@benfinney.id.au> - 2011-08-29 11:32 +1000
Re: [Python] Why I need the parameter when the call doesn't use it? Chris Gonnerman <chris@gonnerman.org> - 2011-08-28 20:42 -0500
Re: [Python] Why I need the parameter when the call doesn't use it? Ben Finney <ben+python@benfinney.id.au> - 2011-08-29 12:34 +1000
Re: [Python] Why I need the parameter when the call doesn't use it? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-29 14:40 +1000
Re: Why I need the parameter when the call doesn't use it? Chris Rebert <clp2@rebertia.com> - 2011-08-28 18:52 -0700
Re: Why I need the parameter when the call doesn't use it? John Gordon <gordon@panix.com> - 2011-08-29 03:27 +0000
Re: Why I need the parameter when the call doesn't use it? Ben Finney <ben+python@benfinney.id.au> - 2011-08-29 16:15 +1000
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