Apparently on a Windows system \r\n must be used, instead of \n on a Linux system. Worked for me.

See here for (slightly) more details

Apparently on a Windows system \r\n must be used, instead of \n on a Linux system. Worked for me.

See How can I force Python's file.write() to use the same newline format in Windows as in Linux (“\r\n” vs. “\n”)? at Stack Overflow for (slightly) more details.