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
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Previous: Write a Python program to insert an element at the beginning of a given OrderedDictionary.
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
Find current directory and file's directory:
To get the full path to the directory a Python file is contained in, write this in that file:
import os dir_path = os.path.dirname(os.path.realpath(__file__))
(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)
To get the current working directory use
import os cwd = os.getcwd()
Documentation references for the modules, constants and functions used above:
- The os and os.path modules.
- The __file__ constant
- os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
- os.path.dirname(path) (returns "the directory name of pathname path")
- os.getcwd() (returns "a string representing the current working directory")
- os.chdir(path) ("change the current working directory to path")
Ref: https://bit.ly/3fy0R6m
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