enumerate py 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: python for enumerate loop

>>> values = ["a","b","c"]
>>> for count, value in enumerate(values):
...     print(count, value)
...
0 a
1 b
2 c

Example 3: enumerate python

for index,char in enumerate("abcdef"):
  print("{}-->{}".format(index,char))
  
0-->a
1-->b
2-->c
3-->d
4-->e
5-->f

Example 4: how to use enumerate in python

rhymes=['check','make','rake']
for rhyme in enumerate(rhymes):
    print(rhyme)
#prints out :
(0, 'check')
(1, 'make')
(2, 'rake')
#basically just prints out list elements with their index

Example 5: enumerate

categorical_features_new=[features for features in df.columns if df[features].dtypes=='object']
for feature in categorical_features_new:
    labels_sorted=df[feature].value_counts().sort_values().index
   
    labels_ordered={k:i for i,k in enumerate(labels_sorted,0)}
    
    df[feature]=df[feature].map(labels_ordered)