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Writing a list to a file with Python, with newlines

How do I write a list to a file? writelines() doesn't insert newline characters, so I need to do:

f.writelines([f"{line}\n" for line in lines])

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37

No trailing newline, uses 2x space compared to the loop.
– Dave
Commented May 22, 2009 at 18:13
Have not benchmarked anything, but I guess this is much faster for big lists than looping through every item and writing each line.
– skranz
Commented Apr 22 at 8:05

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Writing a list to a file with Python, with newlines

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