File read or write

Sample code

with open('sample.txt', 'r') as f:

a = f.read() 

with open('sample.txt', 'a') as f:

a = f.write('good girl')  

print(f) 

sample.txt 

arju is the 

Corrected code 

# Open the file for reading

with open('sample.txt', 'r') as f:

    content = f.read()

# Open the file for appending and add a newline character

with open('sample.txt', 'a') as f:

    f.write('\ngood girl\n')

# Print the content of the file

print(content)

In Windows, you should use \r\n instead of just \n to represent a newline character. 

This combination represents a carriage return followed by a line feed, which is the standard newline sequence in Windows text files. So, your code snippet should be modified accordingly:

# Open the file for reading

with open('sample.txt', 'r') as f:

    content = f.read()

# Open the file for appending and add a Windows-style newline character

with open('sample.txt', 'a') as f:

    f.write('\r\ngood girl\r\n')

# Print the content of the file

print(content)

Using os  module in windows 

import os

# Open the file for reading

with open('sample.txt', 'r') as f:

    content = f.read()

# Open the file for appending and add a newline character

with open('sample.txt', 'a') as f:

    f.write(os.linesep + 'good girl' + os.linesep)

# Print the content of the file

print(content)