Record some information to the file could be very usefull. For example, in order to debug or output statistics.
This is done in a few trivial steps:
1) open a file for writing
open() – This function returns a file object
f = open( ‘<filename>’, ‘<mode>’ ),
where filename – text file name
mode – ‘w’ for writing, ‘r’ – for reading
2) to output data, use the command write
f.write( ‘This is a test\n’ )
in this case, the flag ‘\n’ means that after the outputed line, a next line will be a new line. These flags are standard in general, you can watch them in any programming manual.
3) to complete the work with a file, it should be close