Convert to binary and convert back to strings

[Hendrik van Rooyen]

 "Paul Rubin" <http://phr.cx@NOSPAM.invalid> wrote:

> "Hendrik van Rooyen" <mail at microcorp.co.za> writes:
> > s = 'some string that needs a bcc appended'
> > ar = array.array('B',s)
> > bcc = 0
> > for x in ar[:]:
> >     bcc ^= x
> > ar.append(bcc)
> > s=ar.tostring()
> 
> Untested:
> 
> import operator
> s = 'some string that needs a bcc appended'
> ar = array.array('B',s)
> s += chr(reduce(operator.xor, ar))
> 

Yikes! - someday soon I am going to read the docs on
what reduce does...

Won't this be slow because of the double function call on each char?

- Hendrik