How to Dynamically Iterate Over Characters in a Word, Insert Random Characters, and Repeat Across Each Line in a File Using Python

In this tutorial, we will delve into the world of dynamic text manipulation in Python. Specifically, we’ll guide you through the process of creating a Python script that iterates over characters in each line of a file, inserts random characters, and repeats the process across multiple lines.

1. Iterating Over Characters in a Word.

1. Source code.

   import random    
   
   def add_random_characters(word, char_list):
       modified_word = ""
       for char in word:
           modified_word += char + random.choice(char_list)
       return modified_word
   
   def call_add_random_characters():
       # Example usage
       input_word = 'example'
       char_list = ['-', ' ', '@#$', '**']
   
       modified_word = add_random_characters(input_word, char_list)
       print(f"Original Word: {input_word}")
       print(f"Modified Word: {modified_word}")
   
   if __name__ == "__main__":
       call_add_random_characters()
   
   
   

2. Output.

   Original Word: example
   Modified Word: e@#$x@#$a m**p l**e-

2. Dynamically Inserting Random Characters Across Lines.

1. Source code.

   import random    
   def add_random_characters(word, char_list):
       modified_word = ""
       for char in word:
           modified_word += char + random.choice(char_list)
       return modified_word
   
   def process_line(line, char_list):
       modified_line = ""
       for word in line.split():
           modified_word = add_random_characters(word, char_list)
           modified_line += modified_word + ' '
       return modified_line.strip()
   
   def call_process_line():
       # Example usage
       input_line = 'This is a sample line.'
       char_list = ['$', '#', '@', '&']
   
       modified_line = process_line(input_line, char_list)
       print(f"Original Line: {input_line}")
       print(f"Modified Line: {modified_line}")
   
   
   if __name__ == "__main__":
       call_process_line()
   
   

2. Output.

   Original Line: This is a sample line.
   Modified Line: T$h&i&s@ i@s& a# s&a&m&p$l&e@ l@i#n#e$.#

3. Applying Across Each Line in a File.

1. Source code.

   import random    
   
   def add_random_characters(word, char_list):
       modified_word = ""
       for char in word:
           modified_word += char + random.choice(char_list)
       return modified_word
   
   def process_line(line, char_list):
       modified_line = ""
       for word in line.split():
           modified_word = add_random_characters(word, char_list)
           modified_line += modified_word + ' '
       return modified_line.strip()
   
   def across_each_line_in_a_file():
           
       # Example usage
       input_file_path = './resource-files/input_file.txt'
       output_file_path = './resource-files/output_file.txt'
   
       char_list = ['-', ' ', '@', '*', '#', '$']
   
   
       with open(input_file_path, 'r') as input_file, open(output_file_path, 'w') as output_file:
           for line in input_file:
               modified_line = process_line(line, char_list)
               output_file.write(modified_line + '\n')
   
       print('task complete.')
   
   
   if __name__ == "__main__":
       across_each_line_in_a_file()
   
   

2. Output on the console.

   task complete.

3. The input content in file ./resource-files/input_file.txt.

   hello python
   today is a good day

4. The output content in file ./resource-files/output_file.txt.

   h#e*l$l*o$ p y-t@h o@n*
   t$o@d a#y* i*s* a  g#o*o*d$ d#a$y#

4. Conclusion.

1. In this tutorial, we’ve demonstrated how to dynamically iterate over characters in a word, insert random characters, and apply this process across each line in a file using Python.
2. This flexible script can be adapted for various text manipulation tasks, providing a dynamic and customizable approach to text transformation in your projects.
3. Remember to customize file paths, character lists, and other parameters based on your specific needs.