How to correct, save, run with ptpython

[sylas]

I cannot copy correctly a console program. First I tried "double click", on forum's page, 2. I I swept all lines, one after the other; Always same bad copy. Here is the copy:

Error:
C:\Users\Sylvain                                                                                            
λ class Selfless:     def __init__(self, data):         self.data = data      def selfless(self, arg1, arg2)
:         return arg1 + arg2      def normal(self, arg1, arg2):         return self.data + arg1 + arg2      
'class' is not recognized as an internal or external command,                                               
operable program or batch file.