On Sunday, 30 November 2014 18:23:22 UTC+2, Masklinn wrote:
>
>
> On 2014-11-30, at 12:30 , ThomasTheDjangoFan <
> stefan.eich...@googlemail.com <javascript:>> wrote:
>
> Hi guys,
>
> coming from php I am wondering if there is a way to do something like this
> in Python/Django:
>
> if variable = get_a_value_from_function():
> new_stuff = variable
>
> Of course I can use
>
> variable = get_a_value_from_function()
> if variable:
> new_stuff = variable
>
> But is there a shortcut similar to php?
>
>
> Not as such. Python intentionally didn't include assignment within
> statements (mostly conditionals) to avoid the common issue of
> assignments-instead-of-equality bugs.
>
> If `new_stuff` has a default value, you could always write.
>
> new_stuff = some_function() or new_stuff
>
> which will reassign `new_stuff` to itself if `some_function()` returns a
> falsy value. If you need a more complex conditional body than just an
> assignment, you'll need the long one.
>
Or, if new_stuff does not already exist, and you want to create a
fallback/default
value for it, you could use:
new_stuff = some_function() or "foo"
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