Tom Lynn <[email protected]> added the comment:
I'm still unsure. I think this confusion does cause bugs in real-world code.
Perhaps more prominence for \A and \Z in the docs? There's already a section
comparing regexps starting '^' with match under "Matching vs Searching".
The problem is basically that ^ and $ have weird semantics but are better
recognised than \A and \Z. Looking over the docs again I see that the docs for
$ are still misleading, in a way that's related to this issue:
foo matches both 'foo' and 'foobar', while the regular
expression foo$ matches only 'foo'.
"foo$ matches only 'foo' (out of 'foo' and 'foobar')" is the correct
interpretation of that, but it's easy to read it as "foo$ means
exact_match('foo')", which is the misconception I was hoping to put to rest
with this (foo$ also matches the 'foo' part of 'foo\nbar', even with flags=0).
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<http://bugs.python.org/issue1708652>
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