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Is the following python code valid?
class Test: def __init__(self): self.number = 5 def returnTest(self): return Test() 
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Yes, a class can have a method that returns an instance of itself.
To create instances of a class, you call the class using class name and pass in whatever arguments its __init__ method accepts.
The __new__() is a static method of the object class. When you create a new object by calling the class, Python calls the __new__() method to create the object first and then calls the __init__() method to initialize the object's attributes.
The first method __init__() is a special method, which is called class constructor or initialization method that Python calls when you create a new instance of this class.
Yes it is valid. The class is defined by the time you create an object and call the returnTest method.
In [2]: x = Test() In [3]: y = x.returnTest() In [4]: y Out[4]: <__main__.Test instance at 0x1e36ef0> In [5]: However, in cases where a method acts like a factory, you might want to consider using the classmethod decorator. When inheritance and other annoyances come in the way, this can help.
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