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Given the following text description, write Python code to implement the functionality described below step by step
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Description:
 Enums
This notebook is an introduction to Python Enums as introduced in Python 3.4 and subsequently backported to other version of Python.
More details can be found in the library documentation
Step1:  Nomenclature
Python has a specific nomenclature for enums.
The class Color is an enumeration (or enum)
The attributes Color.red, Color.green, etc., are enumeration members (or enum members).
The enum members have names and values (the name of Color.red is red, the value of Color.blue is 3, etc.)
Printing and Representing Enums
Enum types have human readable string representations for print and repr
Step2:  The type of an enumeration member is the enumeration it belongs to
Step3:  Alternative way to create an Enum
There is an alternative way to create and Enum, that matches Python's NamedTuple
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Python Code:
from enum import Enum
class MyEnum(Enum):
    first = 1
    second = 2
    third = 3
Explanation: Enums
This notebook is an introduction to Python Enums as introduced in Python 3.4 and subsequently backported to other version of Python.
More details can be found in the library documentation: https://docs.python.org/3.4/library/enum.html
Enumerations are sets of symbolic names bound to unique, constant values. 
Within an enumeration, the members can be compared by identity, and the enumeration itself can be iterated over.
A simple example is:
python
from enum import Enum
class Color(Enum):
    red = 1
    green = 2
    blue = 3
Let's walk through the example above. First you import the Enum library with the line:
python
from enum import Enum
Then you subclass Enum to create your own enumerated class with the values listed within the class:
python
class Color(Enum):
    red = 1
    green = 2
    blue = 3
Try it below, create your own Enum.
End of explanation
print(MyEnum.first)
print(repr(MyEnum.first))
Explanation: Nomenclature
Python has a specific nomenclature for enums.
The class Color is an enumeration (or enum)
The attributes Color.red, Color.green, etc., are enumeration members (or enum members).
The enum members have names and values (the name of Color.red is red, the value of Color.blue is 3, etc.)
Printing and Representing Enums
Enum types have human readable string representations for print and repr:
End of explanation
type(MyEnum.first)
Explanation: The type of an enumeration member is the enumeration it belongs to:
End of explanation
SecondEnum = Enum('SecondEnum', 'first, second, third')
print(SecondEnum.first)
Explanation: Alternative way to create an Enum
There is an alternative way to create and Enum, that matches Python's NamedTuple:
python
Colour = Enum('Colour', 'red, green')
Try it below:
End of explanation
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