对于 Python 2: class GetAttr(type): def __getitem__(cls, x): return getattr(cls, x) class Fruit(object): __metaclass__ = GetAttr Apple = 0 Pear = 1 Banana = 2 print Fruit['Apple'], Fruit['Banana'] # output: 0 2 在Python 3 上,你应该直接使用 Enum: import enum class Fruit...
The following code shows how to create a class in Python. classPerson:#www.java2s.comdefsetName(self, name): self.name = namedefgetName(self):returnself.namedefgreet(self):print"Hello, world! I'm %s."% self.name foo = Person() bar = Person() foo.setName('Java') bar.setName(...
Python is a flexible and versatile programming language that can be leveraged for many use cases, with strengths in scripting, automation, data analysis, mac…
You expect each cell of the feature map to predict an object through one of it's bounding boxes if the center of the object falls in the receptive field of that cell. (Receptive field is the region of the input image visible to the cell. Refer to the link on convolutional neural networ...
In Python, we can extend a class to create a new class from the existing one. This becomes possible because Python supports the feature of inheritance. Using inheritance, we can make a child class with all the parent class’s features and methods. We can also add new features to the chil...
How the __init__ method can be used to implement inheritance in Python The method__init__can is being used to implement inheritance in Python, which is a way of creating classes that inherit behaviors and attributes from other classes. This is done by creating a new class that inherits fr...
In the Python programming language, every piece of data is represented as an instance of some class. If you're not familiar with the language, see ourbeginner's guide to Pythonbefore moving on. A class provides a set of behaviors in the form of member functions (also known as methods),...
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We then created a method called get_color(). Within a method in a class in Python, you want to pass in the parameter, self, into the method. self is a reference that when you name an object, it is referring to itself, one of its attributes. It's pretty self-descriptive and self-...