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Python: Reverse strings in a given list of string values using lambda

Python Lambda: Exercise-41 with Solution

Write a Python program to reverse strings in a given list of string values using lambda.

Sample Solution:

Python Code :

def reverse_strings_list(string_list):
    result = list(map(lambda x: "".join(reversed(x)), string_list))
    return result

colors_list = ["Red", "Green", "Blue", "White", "Black"]
print("\nOriginal lists:")
print(colors_list)
print("\nReverse strings of the said given list:")
print(reverse_strings_list(colors_list))

Sample Output:

Original lists:
['Red', 'Green', 'Blue', 'White', 'Black']

Reverse strings of the said given list:
['deR', 'neerG', 'eulB', 'etihW', 'kcalB']

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Previous: Write a Python program to find the nested lists elements, which are present in another list using lambda.
Next: Write a Python program to calculate the product of a given list of numbers using lambda.

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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