Re: scanf style parsing
by Quinn Dunkan other posts by this author
Oct 4 2001 3:48AM messages near this date
advanced regex, was: Re: scanf style parsing
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Re: scanf style parsing
On Wed, 26 Sep 2001 22:21:05 GMT, Andrei Kulakov <sill@[...].net> wrote:
> On Wed, 26 Sep 2001 05:42:45 GMT, Bruce Dawson <comments@[...].com> wrote:
> > I love programming in Python, but there are some things I have not found
> > the easy way to do. I understand that Python is supposed to be good at
> > text parsing, but I am having trouble with this simple task. Given this
> > text (the output from VisualC++) I want to find out how many errors and
> > warnings there were:
> >
> > smtpmail.exe - 0 error(s), 0 warning(s)
>
> Seeing that there should only be 2 words here that are numbers, you can do
> this:
>
> my_str # that's where the result is
> words = my_str.split()
> lst = []
> for word in words:
> try:
> result = int(word)
> lst.append(result)
> except:
> pass
>
> errors = lst[0]
> warnings = lst[1]
More compactly:
errors, warnings = [ int(w) for w in line.split() if w.isdigit() ]
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