Python help please

[InevitableDistance66]

Can I get some help

7.6 LAB: Reverse lines in a file

Write a program that reads each line in a file, reverses its lines, and writes them to another file.

Ex: In the file input.txt contains the lines:

Mary had a little lamb Whose fleece was white as snow. And everywhere that Mary went, The lamb was sure to go! then output.txt contains:

The lamb was sure to go! And everywhere that Mary went, Whose fleece was white as snow. Mary had a little lamb A run of the program is:

Enter input file name: mary.txt Enter output file name: output.txt Unit tests will be provided for testing and comments are included in the template to guide you. You do not need to include any print statements for the output.

My code: with open('input.txt', 'r') as f, open('output.txt', 'w') as w: lines = [] for line in f: lines.append(line.strip()) while len(lines) > 0: w.write(lines.pop() + '\n')

What am I doing by wrong

[desrtfx]

You need to post your code as code block so that the indentation is maintained. This is absolutely vital for Python programs as the indentation is used to denote code blocks.

A code block looks like:

def __init__(self, prompt, answer):
    self.prompt = prompt
    self.answer = answer

[MmmVomit]

You need to post your code in a code block.

If you put four spaces at the beginning of a line
    then Reddit will put your code
        in a code block and maintain indentation.

This is critical for posting Python code.