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return 0 if they are all fine
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return 3 if the key is not trusted
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s^ return a pkgtuple (n, a, e, v, r) from a hdr object, converts
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unique("abcabc") some permutation of ["a", "b", "c"], and
unique(([1, 2], [2, 3], [1, 2])) some permutation of
[[2, 3], [1, 2]].
For best speed, all sequence elements should be hashable. Then
unique() will usually work in linear time.
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ordering, and if list(s).sort() doesn't raise TypeError it's
assumed that they do enjoy a total ordering. Then unique() will
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Pass in a standard style rpm fullname
Return a name, version, release, epoch, arch, e.g.::
foo-1.0-1.i386.rpm returns foo, 1.0, 1, i386
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Return a human readable requirement string (ex. foobar >= 2.0)
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