Python File I/O: Read a file line by line store it into an array

Last update on March 31 2025 12:54:41 (UTC/GMT +8 hours)

7. File to Array

Write a Python program to read a file line by line store it into an array.

Sample Solution:-

Python Code:

def file_read(fname):
        content_array = []
        with open(fname) as f:
                #Content_list is the list that contains the read lines.     
                for line in f:
                        content_array.append(line)
                print(content_array)

file_read('test.txt')

Sample Output:

['Welcome to w3resource.com.\n', 'Append this text.Append this text.Append this text.\n', 'Append this text.\n
', 'Append this text.\n', 'Append this text.\n', 'Append this text.\n']  

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to read a file line by line into an array and then print the array’s elements in reverse order.
• Write a Python program to read a file into an array and remove any duplicate lines before displaying the result.
• Write a Python program to read a file into an array and sort the elements numerically if the lines represent numbers.
• Write a Python program to read a file into an array and then count the frequency of each unique line.

Python Code Editor:

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