Python: Using builtin class zip()

Using zip() in Python

Using zip() in Python

The constructor of builtin class zip takes iterables as inputs and returns an iterator of tuples of corresponding elements. The population of the iterator stops when the shortest input iterable is exhausted. Since it returns an iterator, the __next__() method is used fetch the next tuple. to Let's look at a few examples:

# TWO ITERABLES AS INPUTS
>>> zipOne = zip(   [1, 2, 3, 4], [5, 6, 7, 8, 9]  )
>>> zipOne.__next__()
(1, 5)
>>> zipOne.__next__()
(2, 6)
>>> zipOne.__next__()
(3, 7)
>>> zipOne.__next__()
(4, 8)
>>> zipOne.__next__()
Traceback (most recent call last):
    zipOne.__next__()
StopIteration



>>> zipOne = zip(   [1, 2, 3, 4], [5, 6, 7, 8, 9]  )
>>> for element in zipOne:
	print(element)

(1, 5)
(2, 6)
(3, 7)
(4, 8)



>>> zipOne = zip(   range(5), range(5, 10)    )
>>> for element in zipOne:
	print(element)

	
(0, 5)
(1, 6)
(2, 7)
(3, 8)
(4, 9)


>>> zipOne = zip(   range(5), range(5, 10)    )
>>> zipOne.__next__()
(0, 5)
>>> zipOne.__next__()
(1, 6)
>>> zipOne.__next__()
(2, 7)
>>> zipOne.__next__()
(3, 8)
>>> zipOne.__next__()
(4, 9)
>>> zipOne.__next__()
Traceback (most recent call last):
    zipOne.__next__()
StopIteration




# FOUR ITERABLES AS INPUT
>>> zipTwo = zip('Have', 'you', 'met', 'Ted')
>>> for element in zipTwo:
	print(element)

	
('H', 'y', 'm', 'T')
('a', 'o', 'e', 'e')
('v', 'u', 't', 'd')

See also:

• Python 101
• Object Oriented Python
• Design Patterns in Python
• 50+ Handy Standard Library Modules
• 60+ Handy Third Library Modules
• 50+ Tips & Tricks for Python Developers
• 50+ Know-How(s) Every Pythonista Must Know