Python: Find the even-length words and sort them by length
Python Programming Puzzles: Exercise-50 with Solution
Write a Python program to find the even-length words from a given list of words and sort them by length.
Input: ['Red', 'Black', 'White', 'Green', 'Pink', 'Orange'] Output: ['Pink', 'Orange'] Input: ['The', 'worm', 'ate', 'a', 'bird', 'imagine', 'that', '!', 'Absurd', '!!'] Output: ['!!', 'bird', 'that', 'worm', 'Absurd']
Pictorial Presentation:
Sample Solution:
Python Code:
#License: https://bit.ly/3oLErEI
def test(nums):
return sorted([w for w in words if len(w) % 2 == 0], key=lambda w: (len(w), w))
words = ["Red", "Black", "White", "Green", "Pink", "Orange"]
print("Original list of words:")
print(words)
print("Find the even-length words and sort them by length in the said list of words:")
print(test(words))
words = ['The', 'worm', 'ate', 'a', 'bird', 'imagine', 'that', '!', 'Absurd', '!!']
print("\nOriginal list of words:")
print(words)
print("Find the even-length words and sort them by length in the said list of words:")
print(test(words))
Sample Output:
Original list of words: ['Red', 'Black', 'White', 'Green', 'Pink', 'Orange'] Find the even-length words and sort them by length in the said list of words: ['Pink', 'Orange'] Original list of words: ['The', 'worm', 'ate', 'a', 'bird', 'imagine', 'that', '!', 'Absurd', '!!'] Find the even-length words and sort them by length in the said list of words: ['!!', 'bird', 'that', 'worm', 'Absurd']
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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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