[issue5109] array.array constructor very slow when passed an array object.

[Alexander Belopolsky]

Alexander Belopolsky <belopolsky at users.sourceforge.net> added the comment:

Committed in revision 87942.

@Georg: Yes, I ran coverage and all branches are covered.

@Meador: I don't think the old len calculation could handle the case of array object in initial.  In any case, I don't find the new code much more complicated than the old one.  To the contrary, a chain of simple if-else looks cleaner than the original 2-line boolean expression.

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<http://bugs.python.org/issue5109>
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