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Python: Remove words from a given list of strings containing a character or string

Python List: Exercise - 127 with Solution

Write a Python program to remove words from a given list of strings containing a character or string.

Sample Solution:

Python Code:

def remove_words(in_list, char_list):
    new_list = []
    for line in in_list:
        new_words = ' '.join([word for word in line.split() if not any([phrase in word for phrase in char_list])])
        new_list.append(new_words)
    return new_list
     
str_list = ['Red color', 'Orange#', 'Green', 'Orange @', "White"]
print("Original list:")
print("list1:",str_list)
char_list = ['#', 'color', '@']
print("\nCharacter list:")
print(char_list)
print("\nNew list:")
print(remove_words(str_list, char_list))

Sample Output:

Original list:
list1: ['Red color', 'Orange#', 'Green', 'Orange @', 'White']

Character list:
['#', 'color', '@']

New list:
['Red', '', 'Green', 'Orange', 'White']

Flowchart:

Flowchart: Remove words from a given list of strings containing a character or string.

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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