Whats The Difference

[shanenin]

I am slowly absorbing these python class concepts(kinda)

this fails with an error

class Critter(object):

    def __init__(self):
        print "I am born"
        

    def talk(self,name):
        self.test = name
        print self.test

crit = Critter('ralph')
crit.talk()

this one works

class Critter(object):

    def __init__(self,name):
        print "I am born"
        self.test = name
        print self.test     

    def talk(self):
        print 'ya'
      

crit = Critter('ralph')
crit.talk()

this seems that the parameter 'ralph' can only be passed to the __init__ method, but not the talk method. Is that a correct assumption, if so why?

[gvim]

....this fails with an error

class Critter(object):
    def __init__(self):
        print "I am born"
    def talk(self,name):
        self.test = name
        print self.test
crit = Critter('ralph')
crit.talk()

this one works

class Critter(object):
    def __init__(self,name):
        print "I am born"
        self.test = name
        print self.test     
    def talk(self):
        print 'ya'
crit = Critter('ralph')
crit.talk()

this seems that the parameter 'ralph' can only be passed to the __init__ method, but not the talk method. Is that a correct assumption, if so why?

<{POST_SNAPBACK}>

The first piece of code works, just put your 'ralph' where your talk is.... like so

class Critter(object):
    def __init__(self):
        print "I am born"
    def talk(self,name):
        self.test = name
        print self.test
crit = Critter()
crit.talk('ralph')

[shanenin]

Thanks :-)

it seems that any parameters given directly to the object are passed only to the __init__ constructor(for the most part)

@jcl

you kind of already answered this for me before, but I was still not sure

Edited July 2, 2005 by shanenin