Question

I try to return a string value when i print an instance of my class. It seems like that shouldn’t work like i wish.

class oObject (object):
    def __init__(self, value):
        self.value = value
    def __str__(self):
        return str(self.value)
    def __repr__(self):
        return str(self.value)

new = oObject(50)
# if I use print it's Okay
print new
# But if i try to do something like that ...
print new + '.kine'

Answer 1

override __add__ for it:

class oObject (object):
    def __init__(self, value):
        self.value = value
    def __str__(self):
        return str(self.value)
    def __repr__(self):
        return str(self.value)
    def __add__(self,val):
        return str(self.value)+val

new = oObject(50)
'''if I use print it's Okay'''
print new
'''But if i try to do something like that ...'''
print new + '.kine'   #prints 50.kine