Yes! I got my answer now. Thanks all @Dominick: sorry about my explanation. On 26-Nov-2013 4:24 PM, "Alan Gauld" <alan.ga...@btinternet.com> wrote:
> On 26/11/13 07:30, Reuben wrote: > >> Hi, >> >> Following is my code: >> ############################################# >> class Animal(): >> >> flag = True >> print flag >> >> def __init__(self,name): >> self.name <http://self.name> = name >> print self.name <http://self.name> >> >> def walk(self): >> print "I am walking" >> >> >> if __name__ == '__main__': >> test = Animal('boxer') >> test.flag = False >> > > > If you really want the flag to be a class attribute rather than an > instance one you should set it using the class name. So instead of > test.flag use > Animal.flag = False > > That works inside the class methods too. > > By setting test.flag you are creating a new instance level attribute > that exists only within the test instance. That's legal Python > but usually its not a good idea to have different instances of > the same class having different attributes. > > >>> class C: > ... f = True > ... def g(self): self.f = 42 > ... > >>> c = C() > >>> c.f > True > >>> c.g() > >>> c.f > 42 > >>> C.f > True > >>> d = C() > >>> d.f = 66 > >>> d.f > 66 > >>> C.f > True > >>> > > > > -- > Alan G > Author of the Learn to Program web site > http://www.alan-g.me.uk/ > http://www.flickr.com/photos/alangauldphotos > > _______________________________________________ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > https://mail.python.org/mailman/listinfo/tutor >
_______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
