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Python: Find the most common element of a given list

Python Collections: Exercise-15 with Solution

Write a Python program to find the most common element of a given list.

Sample Solution:

Python Code:

from collections import Counter
language = ['PHP', 'PHP', 'Python', 'PHP', 'Python', 'JS', 'Python', 'Python','PHP', 'Python']
print("Original list:")
print(language)
cnt = Counter(language)
print("\nMost common element of the said list:")
print(cnt.most_common(1)[0][0])

Sample Output:

Original list:
['PHP', 'PHP', 'Python', 'PHP', 'Python', 'JS', 'Python', 'Python', 'PHP', 'Python']

Most common element of the said list:
Python

Flowchart:

Python Collections: Find the most common element of a given list.

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Python: Tips of the Day

Creates a dictionary with the same keys as the provided dictionary and values generated by running the provided function for each value:

Example:

def tips_map_values(obj, fn):
  ret = {}
  for key in obj.keys():
    ret[key] = fn(obj[key])
  return ret
users = {
  'Owen': { 'user': 'Owen', 'age': 29 },
  'Eddie': { 'user': 'Eddie', 'age': 15 }
}

print(tips_map_values(users, lambda u : u['age'])) # {'Owen': 29, 'Eddie': 15}

Output:

{'Owen': 29, 'Eddie': 15}