We can insert zip() mapping can be inverted. We'll look at several ways to unzip a collection of tuples.
The first way is something we've seen many times: we can use a generator function to unzip a sequence of tuples. For example, assume that the following pairs are a sequence object with two-tuples:
p0= (x[0] for x in pairs) p1= (x[1] for x in pairs)
This will create two sequences. The p0 sequence has the first element of each two-tuple; the p1 sequence has the second element of each two-tuple.
Under some circumstances, ...