On 30/05/20 7:15 pm, Steven D'Aprano wrote:
Out of curiosity, which languages are you thinking of? I know Lua does
that, I can't think of any others.
You've probably never seen the one I'm thinking of. It's a
proprietary, vaguely VB-like language used for scripting a
particular application. It doesn't work like Lua, but it
does have scoping rules that can lead to some surprising
results. I've been bitten by it treating something as global
that I intended to be local, which has made me appreciate
Python's approach to scoping.
One particularly weird thing it does: if you don't declare
a variable (it has optional declarations) it will *usually*
infer it to be local if you assign to it. But if the first
assignment is in a conditional branch of the code, it seems
to get confused. If you do this:
if something then
x = 5
else
x = 7
end if
and later refer to x, it complains that x hasn't been defined.
Go figure.
--
Greg
_______________________________________________
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/YJYRHDJDKZBRB277PGLSOAQPIGP3FQQK/
Code of Conduct: http://python.org/psf/codeofconduct/
