[issue43300] "bisect" module should support reverse-sorted sequences

[Raymond Hettinger]

Raymond Hettinger <raymond.hettinger at gmail.com> added the comment:

I prefer option 5 and leaving the module as-is.  The bisect module api is slice oriented and, in general, people have a hard time reasoning about slices for reverse ordered sequences.  Even the forward ordered API is a bit awkward so that we had to document how to implement find_lt(), find_le(), etc. because it wasn't obvious how to do so.  Also, it doesn't seem to come-up much (the bisect module is over two decades old).  So, I don't think the API and the internals should be gummed up for this.

My vote is -1 because it would cause more problems than it would solve.  Let's cater to the common use cases rather than every possible variant.

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nosy: +rhettinger

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43300>
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