Just a curiosity not a real problem, I want to pass from a string like xxaabbddee to xx:aa:bb:dd:ee
so every two characters insert a ":".
At the moment I have this ugly inliner
interleaved = ':'.join(orig[x:x+2] for x in range(0, len(orig), 2))
but also something like this would work
[''.join((x,y)) for x, y in zip(orig[0::2], orig[1::2])]
any other ideas?
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