class Person: def greet(): print("Hi!")
Methods are actions performed on objects.
Methods are like functions, They may get some input and may return a value.
If a method finishes without returning anything, the return value will be
class Person: # ... def getName(self): return self.name def setName(self, name): self.name = name def sleep(self, fromTime, duration): output = self.getName() + " slept from " + \ str(fromTime) + " for " + str(duration) + " hours." print(output)
Parameters are inputs to methods.
Parameters are separated by comma (
Parameters are passed by assignment (reference values).
person1 = Person() person1.setName("Sam") name = person1.getName() # Sam person1.sleep(10, 7) # Sam slept from 10 for 7 hours.
Methods of an object can be accessed like any properties on it.
Notice although in method definitions the first parameter is
self, when a method is called we are not passing anything for that.
Arguments can also be passed to a method with key-value syntax (Keyword Arguments). You can learn more about this in Function Topic.