25.05.18 13:06, Jacco van Dorp пише:
I would like to carefully suggest a half form of the ternary expression.
Currently, you can write code like:
if cond:
do_something
However, especially if the condition and action are both really
simple, taking two lines feels like a bit of a waste. So I sometimes
write:
if cond: do_something
However, this isn't PEP8 compliant, and every linter complains about
it. They'd be right if the condition and action were a bit more
complicated.
I would very much like to write:
do_something if cond
and be done with it. Like a ternary expression but without the else clause.
This isn't PEP8 compliant either.
I suppose that if this syntax be accepted by the compiler, it will be
explicitly disallowed by PEP8 for the same reason as "if cond:
do_something".
It is easier to pass an option to linter that will silence this warning
than introduce a new ambiguous syntax.
For example try to interpret "[a for b if c]" if "b if c" be a valid
expression.
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