CODEWITHSUNDEEP
pythonclassmethods
CodeTalk
CodeTalk

Reputation: 3667

How can i invoke my python method

pretty new to Python - OO - have been using the procedural python for some time. I wrote a silly class and method out and am having trouble invoking my method:

class Jpd:
    #attributes share data among class objects.
    my_age = 26

    def __init__(self, value):
        #method-level attribute data.
        self.my_age = value

    def ageToRetireFrom(self ):
        print self.my_age + 20

    def ageToBuyHome(self):
        print self.my_age + 5

retire = Jpd.ageToRetireFrom()
home = Jpd.ageToBuyHome()

If I try calling my file example.py like:

>>> import example
>>> j = example.Jpd()

I get:

NameError: global name 'value' is not defined

I know this is complaining that my value attribute isn't assigned. Can someone help me invoke this method?

Thank you

Upvotes: 0

Views: 62

Answers (2)

Iron Fist
Iron Fist

Reputation: 10951

when you create an instance of your class Jpd, should be this way:

j = example.Jpd(20)

since you defined your __init__(self, value), so you need to pass a value when creating an instance of your class

Upvotes: 1

g.d.d.c
g.d.d.c

Reputation: 47988

When you define the __init__ method, that becomes the call signature when you want to create a new instance. So from your example, you'd use:

j = example.Jpd(15)

To make a new Person who was 15 years old.

Upvotes: 1

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