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https://github.com/chubin/cheat.sheets
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25 lines
959 B
Plaintext
25 lines
959 B
Plaintext
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# Classes and methods
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class Dog:
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# __init__ is the constructor, run on instantiation
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# The 'self' parameter refers to the calling instance of the class.
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# It's automatically provided to methods called on an instance of this
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# class. It can be named anything, but 'self' is the convention.
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def __init__(self, name):
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self.name = name
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# Class methods (or static methods) are created by adding the staticmethod
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# decorator. The 'self' parameter is not passed to these methods.
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@staticmethod
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def unrelated_class_method():
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print('this is not an instance method')
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# __str__ returns the string representation of an object of this class
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def __str__(self):
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return self.name
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d = Dog('Fido') # 'self' parameter is implicit
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print(d) # prints 'Fido'
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Dog.unrelated_class_method() # prints 'this is not an instance method'
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d.unrelated_class_method() # also works, but does not provide implicit 'self'
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