how to remove \n from file?

[shams]

This python code writing configuration file for getmail to retrieve the mail, in the first and last f.write code i use the "\n" to break the lines for new line:

cur  = conn.cursor() 
query = "SELECT user, passwd, server FROM pop"
cur.execute(query)
for idx, row in enumerate(cur, start=1):
	with open(f'mail{idx}', 'w') as f:
		
		f.write('[options]\n verbose = 1\n read_all = false\n delete = true\n received = false\n delivered_to = false\n message_log = /home/mail/log\n message_log_verbose = true\n ')
		f.write('username = ')
		f.write(row[0])
		f.write("\n")
		f.write(' password = ')
		f.write(row[1])
		f.write("\n")
		f.write(' server = ')
		f.write(row[2])
		f.write("\n")
		f.write('[destination]\n type = MDA_external\n path = /usr/bin/exim\n arguments = ("-i", "-bm", "user@localhost")\n unixfrom = true\n ')

with cat the file seem ok there is no '\n' in the end of lines, but when run the getmail get the error:

Configuration error: configuration file /home/mail/mail1 incorrect (File contains parsing errors: /home/mail/mail1
	[line  2]: ' verbose = 1\n'
	[line  3]: ' read_all = false\n'
	[line  4]: ' delete = true\n'
	[line  5]: ' received = false\n'
	[line  6]: ' delivered_to = false\n'

how to remove the '\n' from the end of lines.