[Tutor] Help converting strings to numbers

[Joerg Woelke]

On Tue, Aug 28, 2001 at 11:36:25AM +0200, Charlie Clark wrote:
> Dear all,
> 
> I'm getting a whole set of values and putting them in a dictionary like 
> this
> 
> {'preis': '2.029,00', 'marktpreis':'3.399,00'}
> 
> >from which I need to generate a third price 'saving' which is ('preis' / 
> 'marktpreis') * 100 but I don't know how to convert the string prices to 
> floats to do the maths - it's an invalid literal.
> 
preis='2.029,00'

import re
p=re.compile('^\d')
rp=re.sub(p,'',preis)
print rp

Hint:
Calculate in "Pfennige". So you avoid
floating point arithmetics with its problems.
int(rp)

> Please reply to me directly as I'm currently subscribed to the digest.
> 
> Thanx

HTH, HAND
J"o! :-)

> 
> Charlie
> 

-- 
Huh?