In Python, can I do something like the following that I did in Java?
I want to have two constructors, a default constructor and one that asks me to send a string.
public class Person
{
String name;
public static void main(String[] args)
{
Person person = new Person("John");
Person person2 = new Person();
}
public Person()
{
name = "No name";
}
public Person(String name)
{
this.name = name;
}
}
In Python you wouldn't overload the constructor, but give the name argument a default value:
class Person:
def __init__(self, name="No Name"):
self.name = name
In Python you can't have multiple constructors. The only way is to use these elements:
class Person:
def __init__(self, name="No name"):
self.name = name
if __name__ == '__main__':
p1 = Person()
p2 = Person("John")
Not without additional library help for faking overloaded functions. The Pythonic equivalent is to define one __init__ method and an additional class method that uses __init__. For example,
class Person:
def __init__(self, name):
self.name = name
@classmethod
def nameless(cls, self):
return cls("No name")
person = Person("Jhon")
person2 = Person.nameless()
though in this case, this is overkill for providing a default argument, which can be done with
class Person:
def __init__(self, name="No name"):
self.name = name
person = Person("Jhon")
person2 = Person()
