[Gllug] matching strings in python

[Vaidas Jablonskis]

re.search('10000|10001', line)

On 2 October 2011 10:50, dudes dudes <akam123 at hotmail.co.uk> wrote:

>  John,
> I'm using DrPython as an editor on slackware running on V-box. With some
> strange reason when I try to copy and paste it to my windows, doesn't allow
> me to that. And for that reason I only "typed" very small parts of the code
> and during that I have missed " " around r and possibly some other syntaxes.
> . Now With DrPython, if you  try to save your change, it won't let you to
> save it if you syntax issues or parts I missing ( such as missing " " around
> r).
>
> >
> > If you try your code one step at a time, you'll find that even
> > your open line has a bug (missing quotes around r):
> > http://docs.python.org/library/functions.html#open
>
> You mean missing Syntax !
>
> I don't understand why all of the sudden everyone think I'm wasting their
> time !! I just have a deadline for a piece of work that is sue to 1 PM
> Europe time
>
> thanks John for your links
> ak
>
> > Date: Sun, 2 Oct 2011 10:33:38 +0100
> > From: stuart at sjsears.com
> > To: gllug at gllug.org.uk
>
> > Subject: Re: [Gllug] matching strings in python
> >
> > On 02/10/11 09:36, dudes dudes wrote:
> > > Hello,
> > >
> > > Can someone kindly point me my mistake here in this code. I'm trying to
> > > search a file for 10000 OR 10001 (in python).
> > >
> > > import re;
> > >
> > > this= open("file", r)
> > > for line in this:
> > > if re.match('(10000)' | '(10001)', line)
> > > print line
> >
> > RTFM :)
> >
> > http://docs.python.org/library/re.html#matching-vs-searching
> >
> > specifically:
> > where are these numbers on each line? Are they at the start? if not,
> > re.match won't find them without a preceding wildcard.
> >
> > Also, there's no need for the 'this=...' bit, unless you actually feel
> > you need the variable.
> >
> > Something like the following
> >
> > for line in open('filename'):
> > if re.search('1000[01]', line):
> > print line
> >
> > is more likely to succeed
> >
> >
> > > /*It doesn't give me any errors. However; doesn't find the 10000 OR
> 10001 */
> > As Tet says, that's difficult to credit, unless you have selectively
> > copied and pasted random bits of your code into this email and changed
> > the quoting. Or just attempted to write it in email from memory.
> >
> > At the very least:
> >
> > * the 'r' on your open(...) line is not quoted.
> >
> > * The re.match line itself will throw at least one syntax error - all
> > characters in your pattern should be inside one set of quotes.
> >
> > * The second if statement is missing a colon.
> >
> > This example was fairly trivial, but if you are asking for help with
> > code like this, it would help if you actually post working excerpts from
> > it. Or excerpts that throw the errors you are asking about.
> >
> > Regards,
> >
> > Stuart
> > --
> > Stuart Sears RHCA etc.
> > "It's today!" said Piglet.
> > "My favourite day," said Pooh.
> > --
> > Gllug mailing list - Gllug at gllug.org.uk
> > http://lists.gllug.org.uk/mailman/listinfo/gllug
>
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>


-- 
Vaidas Jablonskis
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