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Python: Frequency of the tuples in a given list

Python Collections: Exercise-23 with Solution

Write a Python program to get the frequency of the tuples in a given list.

Sample Solution:

Python Code:

from collections import Counter
nums = [(['1', '4'], ['4', '1'], ['3', '4'], ['2', '7'], ['6', '8'], ['5','8'], ['6','8'], ['5','7'], ['2','7'])]
print("Original list of tuples:")
print(nums)
result = Counter(tuple(sorted(i)) for i in nums[0])
print("\nTuples","    ","frequency")
for key,val in result.items():
    print(key," ", val)

Sample Output:

Original list of tuples:
[(['1', '4'], ['4', '1'], ['3', '4'], ['2', '7'], ['6', '8'], ['5', '8'], ['6', '8'], ['5', '7'], ['2', '7'])]

Tuples      frequency
('1', '4')   2
('3', '4')   1
('2', '7')   2
('6', '8')   2
('5', '8')   1
('5', '7')   1

Flowchart:

Python Collections: Frequency of the tuples in a given list.

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Next: Write a Python program to calculate the maximum aggregate from the list of tuples (pairs).

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Python: Tips of the Day

Inverts a dictionary with non-unique hashable values:

Example:

def tips_collect_dictionary(obj):
  inv_obj = {}
  for key, value in obj.items():
    inv_obj.setdefault(value, list()).append(key)
  return inv_obj
ages = {
  "Owen": 25,
  "Jhon": 25,
  "Pepe": 15,
}
print(tips_collect_dictionary(ages))

Output:

{25: ['Owen', 'Jhon'], 15: ['Pepe']}