How to copy a binary file?

[Samuel A. Falvo II]

> def file_copy(source, dest):
>     in_file = open(source, 'r')
>     out_file = open(dest, 'w')

Try:

  in_file = open( source, 'rb' )
  out_file = open( dest, 'wb' )

This way, you're always opening the file in _binary_ mode instead of the
default, text mode.  I suspect that your reads are stopping at end-of-line
characters.