On 2020-12-15 13:07:25 -0800, Ethan Furman wrote:
> On 12/15/20 9:07 AM, Mark Polesky via Python-list wrote:
>
> > D = {'a':1}
> >
> > def get_default():
> > print('Nobody expects this')
> > return 0
> >
> > print(D.get('a', get_default()))
>
> Python has short-circuiting logical operations, so one way to get the
> behavior you're looking for is:
>
> D.get('a') or get_default()
That will call get_default for any falsey value (0, "", an empty list ...),
not just for missing values.
Which may or may not be what the OP wants.
hp
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_ | Peter J. Holzer | Story must make more sense than reality.
|_|_) | |
| | | h...@hjp.at | -- Charles Stross, "Creative writing
__/ | http://www.hjp.at/ | challenge!"
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