Problem

[Frank de Bot]

The strings are extracted from a file. (forgot to tell). Do you maybe know a way
to make the string valid to calculate with?

Aahz Maruch wrote:

> In article <3742FA52.2779E388 at xs4all.nl>,
> Frank de Bot  <debot at xs4all.nl> wrote:
> >
> >How can I calculate with string if they are numbers.
> >For example:
> >first = 20
> >second = 10
> >calc = first - second   # This doesn't work. I hope you understand what
>
> Works for me:
>
> % python
> Python 1.5.1 (#3, Jan 13 1999, 11:11:57)  [GCC 2.7.2] on sunos5
> Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam
> >>> first = 20
> >>> second = 10
> >>> calc = first - second
> >>> calc
> 10
>
> --
>                       --- Aahz (@netcom.com)
>
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