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Peter Otten 11-02-2012 08:00 AM

Re: Organisation of python classes and their methods
Martin Hewitson wrote:

> Dear list,
> I'm relatively new to Python and have googled and googled but haven't
> found a reasonable answer to this question, so I thought I'd ask it here.
> I'm beginning a large Python project which contains many packages, modules
> and classes. The organisation of those is clear to me.
> Now, the classes can contain many methods (100s of data analysis methods)
> which operate on instances of the class they belong to. These methods can
> be long and complex. So if I put these methods all in the module file
> inside the class, the file will get insanely long. Reading on google, the
> answer is usually "refactor", but that really doesn't make sense here.
> It's just that the methods are many, and each method can be a long piece
> of code. So, is there a way to put these methods in their own files and
> have them 'included' in the class somehow? I read a little about mixins
> but all the solutions looked very hacky. Is there an official python way
> to do this? I don't like having source files with 100's of lines of code
> in, let alone 1000's.

You googled, found the right answer ("refactor"), didn't like it and are now
looking to cure the symptoms of the original problem?
Seriously, a good editor can deal with a long source file, but a class with
hundreds of methods will bring trouble to any old brain.

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