[Tutor] how to read from a txt file

[Liam Clarke]

So... you need those tabs? If you don't need them, go like this - 

> data_file = open(os.path.normpath(self.TextFile.GetValue()), 'r')
for x in data:
    y = str(x)
   ( temp11, temp22, pyra11, pyra22, voltage11, current1) = y.split('\t')
  
And that should be all your values, separated in string format.




On Tue, 29 Mar 2005 20:56:16 -0800, jrlen balane <nbbalane at gmail.com> wrote:
> how should i modify this data reader:
> (assumes that there is only one entry per line followed by '\n')
> 

> data = data_file.readlines()
> 
> self.irradianceStrings = map(str, data)
> self.irradianceIntegers = map(int, data)
> self.IrradianceExecute.SetValue(''.join(self.irradianceStrings))
> 
> so that i can read the text file created by this:
> 
> self.filename = "%s\%s.txt"
> %(os.path.normpath(self.SaveFolder.GetValue()),time.strftime("%Y%m%d%H%M"))
> 
> self.table_file = open(self.filename,"a")
> self.table_file.write('%f\t'%self.temp11)
> self.table_file.write('%f\t'%self.temp22)
> self.table_file.write('%f\t'%self.pyra11)
> self.table_file.write('%f\t'%self.pyra22)
> self.table_file.write('%f\t'%self.voltage11)
> self.table_file.write('%f\t'%self.current11)
> self.table_file.write('\n')
> self.table_file.close()
> 
> 
> On Tue, 15 Mar 2005 17:05:46 +1300, Liam Clarke <cyresse at gmail.com> wrote:
> > Whoops, golden rule - "Never post untested code"
> > Sorry.
> >
> >
> > On Mon, 14 Mar 2005 21:05:44 -0500, Kent Johnson <kent37 at tds.net> wrote:
> > > jrlen balane wrote:
> > > > ok, i've done what sir Kent just said, my fault...
> > > >
> > > > but an error still occurs:
> > > > Traceback (most recent call last):
> > > >   File "C:\Python23\practices\opentxtprintlngnew.py", line 18, in -toplevel-
> > > >     print process(data)
> > > >   File "C:\Python23\practices\opentxtprintlngnew.py", line 10, in process
> > > >     tempLine = int(line)
> > > > ValueError: invalid literal for int(): abc
> > > >
> > > > isn't this the job of :
> > > >
> > > > except TypeError:
> > > >             print "Non numeric character in line", line
> > > >             continue #Breaks, and starts with next line
> > >
> > > Yes, only it should be ValueError instead of TypeError. You can check this interactively:
> > >   >>> int('foo')
> > > Traceback (most recent call last):
> > >    File "<stdin>", line 1, in ?
> > > ValueError: invalid literal for int(): foo
> > >
> > > Kent
> > >
> > > _______________________________________________
> > > Tutor maillist  -  Tutor at python.org
> > > http://mail.python.org/mailman/listinfo/tutor
> > >
> >
> > --
> > 'There is only one basic human right, and that is to do as you damn well please.
> > And with it comes the only basic human duty, to take the consequences.
> > _______________________________________________
> > Tutor maillist  -  Tutor at python.org
> > http://mail.python.org/mailman/listinfo/tutor
> >
> 


-- 
'There is only one basic human right, and that is to do as you damn well please.
And with it comes the only basic human duty, to take the consequences.