I some questions about some code I've been looking at. What does the @staticmethod and @property mean when it is written above a method definition in Python like the following?
@staticmethod
def methodName(parameter):
Class_Name.CONSTANT_VARIABLE = parameter
@property
def methodName(parameter):
Class_Name.CONSTANT_VARIABLE = parameter
The decorator syntax is shorthand for this pattern.
def methodName(parameter):
Class_Name.CONSTANT_VARIABLE = parameter
methodName = some_decorator(methodName)
can be rearranged like this
@some_decorator
def methodName(parameter):
Class_Name.CONSTANT_VARIABLE = parameter
One advantage is that it sits at the top of the function, so it is clear that it is a decorated function
Are you also asking what staticmethods and properties are?
There is a sample code
class Class1(object):
def __init__(self):
self.__x = None
# you can call this method without instance of a class like Class1.method1()
@staticmethod
def method1():
return "Static method"
def method2(self):
return "Class method"
@property
def x(self):
print "In getter"
return self.__x
@x.setter
def x(self, value):
print "In Setter"
self.__x = value
A staticmethod is just a function that has been included in a class definition. Unlike regular methods, it will not have a self argument.
A property is a method that gets run upon attribute lookup. The principal purpose of a property to is support attribute lookup but actually run code as if a method call had been made.
