I have had precisely the same idea.
It feels better to make this feature general (if introduced at all) than
make it specific to 'for' + 'if'.
I think there would have to be a rule that any 'if' that appeared on a
line with other suite-introducing-statements could not have a
corresponding 'else'.
Best wishes
Rob Cliffe
On 02/03/2022 19:53, Jeremiah Paige wrote:
I have on a few occasions wanted a for..in..if statement and if it
existed would
have used it. However, I agree that the level of change a new
statement type
brings to the language is probably too high for this feature.
But what if python lifted the newline requirement for blocks that contain
compound statements? That is, statements that end in a ':' can be
followed by
other statements that end in a ':' on the same line. AFAICT there
would be no
ambiguity (to the parser; to humans, depends). Doing so would add the OPs
requested feature, though it would be two statements on one line with
one extra
character. It would also essentially bring the full comprehension
syntax to for
loops since fors and ifs could be chained arbitrarily.
# for..if
for x in y: if x in c:
some_op(x
# nested generator-like for
for line in doc: for word in line.split():
spellcheck(word)
# side effect one-liner
for item in an_iterable: if condition(item): side_effect(item))
Regards,
Jeremiah
_______________________________________________
Python-ideas mailing list -- python-ideas@python.org
To unsubscribe send an email to python-ideas-le...@python.org
https://mail.python.org/mailman3/lists/python-ideas.python.org/
Message archived at
https://mail.python.org/archives/list/python-ideas@python.org/message/LWPJKAN37ZV7G2GW33ID7PFMT7BNNOYO/
Code of Conduct: http://python.org/psf/codeofconduct/
_______________________________________________
Python-ideas mailing list -- python-ideas@python.org
To unsubscribe send an email to python-ideas-le...@python.org
https://mail.python.org/mailman3/lists/python-ideas.python.org/
Message archived at
https://mail.python.org/archives/list/python-ideas@python.org/message/GZM4BXAMYWVRUQ55ZVKVHTWGRZ5UYZQG/
Code of Conduct: http://python.org/psf/codeofconduct/
