enumerate for loop python code example

Example 1: enumerate in python

languages = ['Python', 'C', 'C++', 'C#', 'Java']

#Bad way
i = 0 #counter variable
for language in languages:
    print(i, language)
    i+=1

#Good Way
for i, language in enumerate(languages):
    print(i, language)

Example 2: for loop with enumerate python

presidents = ["Washington", "Adams", "Jefferson"]
for num, name in enumerate(presidents, start=0):
    print("President {}: {}".format(num, name))

Example 3: 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
"""

Example 4: 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
"""

Example 5: enumerate in python

enumerate(iterable, start=0)

Parameters:
Iterable: any object that supports iteration
Start: the index value from which the counter is 
              to be started, by default it is 0