Hello,
I'm wondering if there is a way of writing a function that causes a
return from the function that called it. To explain with an example,
let's say that I want to exit my function if a dict does not contain a
given key. I could write:
def testFun():
...
if key not in dict:
return
...
But if this is a test I need to do a lot of times, I'd like to replace
it with something shorter and more explicit:
def testFun():
...
checkKey(dict, key)
...
and I'd like checkKey to cause a return *from testFun*. In a language
like Lisp this would be accomplished by defining checkKey as a macro
that expands into the code shown in my first example, so that the return
would be inside testFun and not insted checkKey. Is there a way of doing
something like this in Python?
Another way of phrasing my question is: is there a way to cause a return
from a function that is higher up in the call stack, rather than the
currently active one, without using try/except?
Thanks,
Alberto
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