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Date: Thu, 12 Sep 2013 19:51:31 +0200
From: Markus Rother <python@markusrother.de>
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Subject: Re: Language design
References: <522eb795$0$29999$c3e8da3$5496439d@news.astraweb.com> <5230D58E.9020508@markusrother.de> <5230DD68.2080703@stoneleaf.us>
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Xref: csiph.com comp.lang.python:54071

On 11.09.2013 23:15, Ethan Furman wrote:
> On 09/11/2013 01:41 PM, Markus Rother wrote:
>>      >>> () == []
>>      False
>>
>>      But:
>>
>>      >>> bool(().__eq__([]))
>>      True
> 
> This is not a trap, this is simply the wrong way to do it.  The magic
> methods (aka dunder methods) are there for Python to call, not you
> (except under special circumstances, such as when writing your own
> dunder methods).

While trying to do it, I learned that its not the right way to do it.
However, I was not satisfied with the fact, that there is no built in
pure function for operations on primitives.  Such that

>>> def get_do_stuff (fn):
...     def do_stuff(x,y):
...         return fn(x,y)
...     return do_stuff

I understand that python is not a functional language, but it
frustrates me at times.

Markus