manstey schreef:
> Hi,
>
> I often have code like this:
>
> data='asdfbasdf'
> find = (('a','f')('s','g'),('x','y'))
> for i in find:
> if i[0] in data:
> data = data.replace(i[0],i[1])
>
> is there a faster way of implementing this? Also, does the if clause
> increase the speed?
I think this is best done with translate() and string.maketrans() (see
http://docs.python.org/lib/node110.html#l2h-835 and
http://docs.python.org/lib/string-methods.html#l2h-208). An example:
import string
data = 'asdfbasdf'
translatetable = string.maketrans('asx', 'fgy')
data = data.translate(translatetable)
print data
This results in:
fgdfbfgdf
--
If I have been able to see further, it was only because I stood
on the shoulders of giants. -- Isaac Newton
Roel Schroeven
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