I have two Python lists of integers: x, and y. All elements of x appear somewhere in y, and only once. For each element of x, I want to know the index of the corresponding value in y. I then want to set these indices to a list z.
The code below works as I have just described. However, it seems a little clumsy for a task which I suspect may have a more elegant solution in just a couple of lines or so. Therefore, my question is, what is the least number of lines in which the following code can be rewritten?
z = [0 for i in range(len(x))]
for i, j in enumerate(x):
for k, l in enumerate(y):
if j==l:
z[i] = k
break
Here is one way to do it:
z = [y.index(i) for i in x]
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