Robert Wright <madman....@hotmail.co.uk> added the comment:
Perhaps there's confusion over what I mean by "style guide". I'd happily take
Steven's message *as* the style guide. Or, at the very least, the clarification
that sentinels are to be thought of as constants.
It's one of those things that's obvious once mentioned, but might not be
thought of when you're using them.
Though Eric does raise an interesting point about C sentinels. Something like:
kwargs = {}
if mode is not _MISSING:
kwargs.update(mode=mode)
return open(name, "foo", **kwargs)
would work a bit better with multiple arguments, but it's still not great.
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue35123>
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