Enumerate()

Python enumerate for loop

presidents = ["Washington", "Adams", "Jefferson", "Madison", "Monroe", "Adams", "Jackson"]
for num, name in enumerate(presidents, start=1):
    print("President {}: {}".format(num, name))

Source: treyhunner.com

For enumerate python

for key, value in enumerate(["p", "y", "t", "h", "o", "n"]):
    print key, value

"""
0 p
1 y
2 t
3 h
4 o
5 n
"""

Source: devfuria.com.br

Enumerate python

animals = ["cat", "bird", "dog"]

#enumerate (For Index, Element)
for i, element in enumerate(animals,0):
    print(i, element)
    
for x in enumerate(animals):
    print(x, "UNPACKED =", x[0], x[1])
    
'''
0 cat
1 bird
2 dog
(0, 'cat') UNPACKED = 0 cat
(1, 'bird') UNPACKED = 1 bird
(2, 'dog') UNPACKED = 2 dog
'''

Enumerate in python

list1 = ['1', '2', '3', '4']

for index, listElement in enumerate(list1): 
    #What enumerate does is, it gives you the index as well as the element in an iterable
    print(f'{listElement} is at index {index}') # This print statement is just for example output

# This code will give output : 
"""
1 is at index 0
2 is at index 1
3 is at index 2
4 is at index 3
"""

What does enumerate do in python

The enumerate() function assigns an index to each item in an 
iterable object that can be used to reference the item later. 
What does enumerate do in Python? It makes it easier to keep 
track of the content of an iterable object.

Enumerate()

>>> users = ["Test User", "Real User 1", "Real User 2"]
>>> for index, user in enumerate(users):
...     if index == 0:
...         print("Extra verbose output for:", user)
...     print(user)

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