Python File I/O: Extract characters from various text files and puts them into a list

Last update on April 22 2025 12:53:43 (UTC/GMT +8 hours)

19. Extract Characters to List

Write a Python program to extract characters from various text files and puts them into a list.

words1.txt
Welcome to the Python Wiki, a user-editable compendium of knowledge
based around the Python programming language. Some pages are protected
against casual editing - see WikiEditingGuidelines for more information
about editing content.

words2.txt
Python is a great object-oriented, interpreted, and interactive
programming language. It is often compared (favorably of course :-) )
to Lisp, Tcl, Perl, Ruby, C#, Visual Basic, Visual Fox Pro, Scheme or Java...
and it's much more fun.

Sample Solution:

Python Code:

import glob
char_list = []
files_list = glob.glob("*.txt")
for file_elem in files_list:
   with open(file_elem, "r") as f:
       char_list.append(f.read())
print(char_list)

Sample Output:

["Python is a great object-oriented, interpreted, and interactive\nprogramming language. It is often compared (favorably of course :-) )\nto Lisp, Tcl, Perl, Ruby, C#, Visual Basic, Visual Fox Pro, Scheme or Java...\nand it's much more fun.", 'Welcome to the Python Wiki, a user-editable compendium of knowledge\nbased around the Python programming language. Some pages are protected\nagainst casual editing - see WikiEditingGuidelines for more information\nabout editing content.\n']

Flowchart:

For more Practice: Solve these Related Problems:

Write a Python program to read multiple text files and extract all unique alphabetic characters into a sorted list.
Write a Python script to extract every character from a text file and count the frequency of each, storing the results in a list of tuples.
Write a Python program to read a file and create a list of characters that appear more than once.
Write a Python program to extract only the alphabetic characters from a file and store them in a list, ignoring digits and punctuation.

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Previous: Write a Python program that takes a text file as input and returns the number of words of a given text file.
Next: Write a Python program to generate 26 text files named A.txt, B.txt, and so on up to Z.txt.

Python Code Editor:

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