Purpose of the 'Zip' function in Python

#1

Hi all,

I am new to python and am trying to understand the purpose of zip function. Could someone kindly give a real-life application of python’s zip function please?

Thank you very much!:slight_smile:

#2

The purpose is to produce an iterator from two or more lists, with tuples containing the corresponding elements of each list.

>>> coef = zip([0, 1, 2], [0, 1, 2], [0, 1, 2])
>>> x = 1
>>> for a, b, c in coef:
    print (f"{a}x**2 + {b}x + {c} = {a*x**2 + b*x + c}")

    
0x**2 + 0x + 0 = 0
1x**2 + 1x + 1 = 3
2x**2 + 2x + 2 = 6
>>>

Note how much simpler it is to access all three lists at once, rather than fumbling with each separately?

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