How to check/get/set an attribute or a method in Python (Reflection)

Python allows an easy way to check whether an object contains/has an attribute or method with the specified name as follows:

1) getattr:

Gets the attribute/method with the specified name, usage as follows:

usage: getattr(obj, 'method/attribute name')

eg: 

a='RK'; 

getattr(a, 'split')

2) hasattr:

Checks whether object has the attribute/method with the specified name, usage as follows:

usage: hasattr(obj, 'method/attribute name')

eg: 

a='RK'; 

hasattr(a, 'split')

3) setattr:

Sets the attribute/method with the specified name, usage as follows:

usage: setattr(obj, 'method/attribute name', value)

eg: 

a=Employee(23)

setattr(a, 'id', 45)