[Tutor] attribute error - quick addition

[Sara Johnson]

Thanks Alan and Kent (for the sorting notes)!

Alan...I guess I thought outfile2 had data.  { i.e., outfile2=open('missmeas.dat','w') }

My mistake.

Thanks,
Sara



----- Original Message ----
From: Alan Gauld <alan.gauld at btinternet.com>
To: tutor at python.org
Sent: Sunday, July 29, 2007 7:00:12 PM
Subject: Re: [Tutor] attribute error - quick addition


"Sara Johnson" <sarliz73 at yahoo.com> wrote

> Sorry...I forgot a few more lines at the end of the code.  Starts 
> with "outfile2write..."
> I also added outfile2.sort()

OK, at leasrt we see where the error occcurs. The problem emains that 
you are
trying to sort a file which doesn't have a sort method. You need to 
sort the data
before saving it.

Alan G.


================
outfile2=open('missmeas.dat','w')
for key in skeys:
        fracmiss=1.*numberMissing(z[key].values())/nsites
        outstring="%s has %4.1f%% missing" % (key,100*fracmiss)
        if fracmiss>0.:
                print outstring

        outfile2.write(outstring+'\n') #notice explicit newline \n
outfile2.sort()
outfile2.close()



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