how to make a list item string in python code example

Example 1: list to string python

>>> L = [1,2,3]       
>>> " ".join(str(x) for x in L)
'1 2 3'

Example 2: how do i convert a list to a string in python

lines2 = " ".join(lines) 	# Converts the list to a string.
							# This should work for writing to a file
file.write(lines2)