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Python: Convert a given list of strings and characters to a single list of characters

Python List: Exercise - 169 with Solution

Write a Python program to convert a given list of strings and characters to a single list of characters.

Sample Solution:

Python Code:

def l_strs_to_l_chars(lst):
    result = [i for element in lst for i in element]
    return result

colors = ["red", "white", "a", "b", "black", "f"]
print("Original list:")
print(colors)
print("\nConvert the said list of strings and characters to a single list of characters:")
print(l_strs_to_l_chars(colors))

Sample Output:

Original list:
['red', 'white', 'a', 'b', 'black', 'f']

Convert the said list of strings and characters to a single list of characters:
['r', 'e', 'd', 'w', 'h', 'i', 't', 'e', 'a', 'b', 'b', 'l', 'a', 'c', 'k', 'f']

Pictorial Presentation:

Python List: Convert a given list of strings and characters to a single list of characters.

Flowchart:

Flowchart: Convert a given list of strings and characters to a single list of characters.

Visualize Python code execution:

The following tool visualize what the computer is doing step-by-step as it executes the said program:


Python Code Editor:

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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