[Tutor] Reading from files problem
spir
denis.spir at free.fr
Mon Apr 20 10:17:41 CEST 2009
Le Mon, 20 Apr 2009 07:59:15 +0100,
"Alan Gauld" <alan.gauld at btinternet.com> s'exprima ainsi:
> So I'd change the structure to be like this(pseudo code)
>
> students = dict() # empty dict
> for line in gradesfile:
> line = line.split(',')
> s = Student()
> s.id = line[0]
> s.lastname = line[1]
> etc....
> s.hwtotal = sum(hw)
> etc....
> students[s.id] = s
If a student type is created, then it's worth having a readDataLine() method (whatever its name) to feed it:
students = dict() # empty dict
for line in gradestable: # not a file, but data read from it
line = line.split(',')
student = Student()
student.readDataLine(line)
id = line[0]
students[id] = student
[Actually, you wouldn't even need splitting the line before passing it, except here its also a practicle way to extract the id to use it as dict key.]
If ever this is the standard, or even only, way to feed a student object with data, then the data-line-reading method may be __init__ itself. So that the loop becomes:
for line in gradestable:
line = line.split(',')
student = Student(line)
id = line[0]
students[id] = student
Denis
------
la vita e estrany
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