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
On Mon, 14 Mar 2005 20:22:29 -0500, Kent Johnson <[EMAIL PROTECTED]> wrote:
> jrlen balane wrote:
> > import sys
> >
> > data_file = open('C:/Documents and Settings/nyer/Desktop/nyer.txt', 'r')
> > data = data_file.readlines()
> >
> > def process(list_of_lines):
> > data_points = []
> > for line in list_of_lines:
> > try:
> > tempLine = int(line)
> > except TypeError:
> > print "Non numeric character in line", line
> > continue #Breaks, and starts with next line
> >
> > data_points.append(tempLine)
> > return data_points
> >
> > print process(data)
> >
> > ==============
> >
> > [1000]
> >
> > ==============
> > same result :( any other suggestion???
>
> It doesn't look to me like you changed the 'return datapoints' line at all?
> Indentation is
> significant in Python; by indenting the 'return' past the 'for', you make the
> return part of the
> loop. The effect of this is to break out of the loop after the first line,
> which is what you are seeing.
>
> Try this:
>
> import sys
>
> data_file = open('C:/Documents and Settings/nyer/Desktop/nyer.txt', 'r')
> data = data_file.readlines()
>
> def process(list_of_lines):
> data_points = []
> for line in list_of_lines:
> try:
> tempLine = int(line)
> except TypeError:
> print "Non numeric character in line", line
> continue #Breaks, and starts with next line
>
> data_points.append(tempLine)
> return data_points #### This line was moved left four spaces
> #### now it is not part of the loop
>
> print process(data)
>
> Kent
> >
> > On Mon, 14 Mar 2005 19:57:26 -0500, Kent Johnson <[EMAIL PROTECTED]> wrote:
> >
> >>jrlen balane wrote:
> >>
> >>>this is what i get after running this on IDLE:
> >>>
> >>>import sys
> >>>
> >>>data_file = open('C:/Documents and Settings/nyer/Desktop/nyer.txt', 'r')
> >>>data = data_file.readlines()
> >>>
> >>>def process(list_of_lines):
> >>> data_points = []
> >>> for line in list_of_lines:
> >>> try:
> >>> tempLine = int(line)
> >>> except TypeError:
> >>> print "Non numeric character in line", line
> >>> continue #Breaks, and starts with next line
> >>>
> >>> data_points.append(tempLine)
> >>> return data_points
> >>
> >>This line ^^^ is indented four spaces too much - you are returning after
> >>the first time through the
> >>loop. Indent it the same as the for statement and it will work correctly.
> >>
> >>Kent
> >>
> >>>print process(data)
> >>>
> >>>=================
> >>>[1000]
> >>>
> >>>==============
> >>>but this is what i have written on the text file:
> >>>
> >>>1000
> >>>890
> >>>900
> >>
> >>_______________________________________________
> >>Tutor maillist - Tutor@python.org
> >>http://mail.python.org/mailman/listinfo/tutor
> >>
> >
> >
>
> _______________________________________________
> Tutor maillist - Tutor@python.org
> http://mail.python.org/mailman/listinfo/tutor
>
_______________________________________________
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
