in the: Lesson
What is the use of the dunder __repr__?
class Employee():
def __init__(self, name):
self.name = name
def __repr__(self):
return self.name
argus = Employee("Argus Filch")
print(argus)
# prints "Argus Filch"
Only, that I can access the object attributes directly, after the object initiation?
instead, I can use:
either:
def repr(self):
return self.name.
and then, call outside the class:
print(argus.repr())
else:
print(argus.name)
The thing about dunder methods is that you can call them using something other than the method name. for instance,__add__(self, y) can be called by an object, say argus, as argus + y, and you can thus define what the + operator does in your class.
In the case of __repr__(), you can control what is printed if the user types print(argus), which is one way the method can be called: no dot notation required.
Thank you. I didn’t completely understand what advantages does it contain. Hope, to do it in the future.
Does all the dunder methods run when an object is called? no right? because we didn’t call the repr method , but string is printed.