Q on explicitly calling file.close

MRAB python at mrabarnett.plus.com
Wed Sep 9 23:10:01 CEST 2009

r wrote:
> #-- Double Extra Creidit --#
> Create a backup_file() function that takes <filename> as arg and
> creates a copy of the file with the extension ".bak"...
>>>> backup_file('C:\test.txt') -> 'C:\test.bak'
You should've used raw strings. :-)

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