[Python-ideas] a in x or in y

[Ram Rachum]

That's nice, but having to import a definition like that would be quite
cumbersome.

Also, this doesn't allow lazy evaluation.


On Fri, Feb 14, 2014 at 1:46 AM, Greg Ewing <greg.ewing at canterbury.ac.nz>wrote:

> No language change required:
>
> class either(object):
>
>     def __init__(self, *args):
>         self.args = args
>
>     def __contains__(self, x):
>         for a in self.args:
>             if x in a:
>                 return True
>         return False
>
> pocket = ['hankie', 'pocketknife', 'keys']
> car = ['satchel', 'jacket', 'teddybear']
>
> if 'keys' in either(car, pocket):
>     print("Found them")
> else:
>     print("Lost them")
>
> --
> Greg
>
>
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