Asked By – Bastien Léonard
Currently I’m doing this:
try: something = iterator.next() # ... except StopIteration: # ...
But I would like an expression that I can place inside a simple
Is there anything built-in which would make this code look less clumsy?
False if an iterable is empty, but it will potentially iterate over all the items if it’s not.
I only need it to check the first item.
Someone asks what I’m trying to do.
I have written a function which executes an SQL query and yields its results.
Sometimes when I call this function I just want to know if the query returned anything and make a decision based on that.
Now we will see solution for issue: One-liner to check whether an iterator yields at least one element?
any won’t go beyond the first element if it’s True. In case the iterator yields something false-ish you can write
any(True for _ in iterator).
This question is answered By – Jochen Ritzel
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