Azizbek Khamdamov <azizbek.khamdamov@gmail.com> writes:
|file = open("D:\Programming\Python\working_with_files\cities.txt", 'r+') |file.write("new city\n")
|file.readlines()
|file.close()

Write operations are buffered. Try, 'file.flush()' directly
after 'file.write("new city\n")'.

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MRAB <python@mrabarnett.plus.com> writes:
|When I build a path, I use os.path.join, so it's only a problem if one
|of the strings refers to the root of a drive, e.g. "C:\\".

Or, one also might use "pathlib".

main.py

import pathlib

path = pathlib.Path( 'example' ).joinpath( 'note' ).with_suffix( '.txt' ) print( path )

output

example\note.txt

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