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copied!<p>Your explanation is correct:</p> <blockquote> <p>the class name binding is after the execution of class block and before the execution of function block.</p> </blockquote> <p>This is just saying that a class block is executed right away, while a function block is not executed until the function is called. Note that in both cases the name is not bound until after the object (class or function) is created; it's just that function bodies are executed <em>after</em> the function is created, while class bodies are executed <em>before</em> the class is created (as part of the class creation process).</p> <p>This is because classes and functions are different beasts: when you define a class, you are defining "right now" what the class should contain (i.e., its methods and attributes); when you define a function, you are defining what is to happen at some later point (when you call it).</p> <p><a href="http://docs.python.org/2/reference/compound_stmts.html#class-definitions" rel="nofollow">The documentation</a> makes it clear:</p> <blockquote> <p>A class definition is an executable statement. It first evaluates the inheritance list, if present. [...] The class’s suite is then executed [...]</p> </blockquote> <p>The class body is executed at the time the <code>class</code> statement is executed. This is different from some other languages, where a class definition is a "declaration" which is not executed in the linear order of the source file like other statements. (I trust it's obvious why the function body is <em>not</em> executed when the function is defined -- there wouldn't be much point in putting code in a function if it just ran right away.)</p>

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