Convert line endings in-place (Windows to Linux/Unix)

convert_crlf_to_lf.py

# replacement strings
WINDOWS_LINE_ENDING = b'\r\n'
UNIX_LINE_ENDING = b'\n'

# relative or absolute file path, e.g.:
file_path = r'file_path'

with open(file_path, 'rb') as fs:
    content = fs.read()
    
content = content.replace(WINDOWS_LINE_ENDING, UNIX_LINE_ENDING)

with open(file_path, 'wb') as open_file:
    open_file.write(content)