On Wed, Apr 9, 2008 at 12:59 PM, rui <[EMAIL PROTECTED]> wrote:
> Hi Gloom,
>
>
>
> You should give a look at the method "split" (of the string objects) and
> int.
>
> The first is used do break a string into smaller pieces and the other to
> convert a string to an int object, raising an exception when it is not
> possible.
>
>
> On Wed, Apr 9, 2008 at 9:29 AM, Gloom Demon <[EMAIL PROTECTED]> wrote:
>
> > Hello :-)
> >
> > Can someone please explain to me ho can I find out how many elements are
> > there in one record of a list?
> >
> > The problem is as follows:
> >
> > I have a txt file from which I read data into Python.
> >
> > The file looks something like this:
> >
> > 01 bla bla bla 23,15 2345,67
> > 02 alb alb 2,4 890,1
> > 03 bal bla alb lab 567,12345 87,45
> > ....
> >
> > I need to be able to discriminate the string
> > parts from the numeric ones.
> >
> > Since the number of words in the file can vary, I have to be able to find
> > out when they are finished
> > and when the floats come in
> >
> > mystring[0]-> always integer
> > mystring[1]-> string (word)
> > mystring[1-X]-> last string (word)
> > mystring[X+1]-> always float
> > mystring[X+2]-> always float
> >
> > it would have been nice if I could find out the total number of the
> > fields in one list record so that I could then adress them via a variable.
> >
> > _______________________________________________
> > Tutor maillist - Tutor@python.org
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> >
> >
>
>
> --
> Ruivaldo Neto
>
> _______________________________________________
> Tutor maillist - Tutor@python.org
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>
>
my guess would be something like this :
a=open('/home/some_file.txt')
for line in a:
tmp_list_1=line.split()
num_floats=0
num_strings=0
for i in tmp_list_1:
if type(i) == int:
num_floats=num_floats+1
else:
num_strings=num_strings+1
if you explain more you case maybe i can get more ideas - hope this helps
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