A quote from Guido van Rossum
23 February 2009
Although I had hoped to provide something similar in Python, it quickly became clear that such an approach would be impossible because there was no way to elegantly distinguish instance variables from local variables in a language without variable declarations.
— Guido van Rossum, The History of Python: Adding Support for User-defined Classes
# The Greeter class class Greeter def initialize(name) @name = name.capitalize end def salute puts "Hello #{@name}!" end end
— Ruby example, ruby-lang.org front page
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