[Tutor] a class knowing its self
Ewald Ertl
ewald.ertl at hartter.com
Thu Jan 19 12:09:11 CET 2006
Hi!
Ben Vinger wrote:
> Hello
>
> I've been reading about how a class has access to its
> own 'self', so I tried the following, but it is not
> working as I would expect:
>
> class Skill:
> def __init__(self):
> self.history = []
>
> def setName(self, skill):
> self.name = skill
>
> def getName(self):
> return self.name
>
> # Assigning data to my class:
>
> SkillNames = [r'python', r'apache', r'mysql']
>
> #a.)
> python = Skill()
> python.setName('python')
> print python.getName()
>
> #b.)
> for s in SkillNames:
> s = Skill()
> s.setName(s)
> print s.getName()
>
Have a more precisely look at your code.
s.getName() does just return, what you have put into
the class with setName(). ( Reassignment of a variable to
something different what you intended ).
HTH Ewald
> Why does a work and b not?
>
> b returns:
> <__main__.Skill instance at 0x401e260c>
> <__main__.Skill instance at 0x401e230c>
> <__main__.Skill instance at 0x401e23ec>
>
> why does b not return the names of the 3 instances of
> Skill?
>
> Thanks
> Ben
>
>
>
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