python, pass statement

http://docs.python.org/release/2.5.2/ref/pass.html

6.4 The pass statement

pass_stmt ::= "pass"
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pass is a null operation -- when it is executed, nothing happens. It is useful as a placeholder when a statement is required syntactically, but no code needs to be executed, for example:

def f(arg): pass # a function that does nothing (yet)

class C: pass # a class with no methods (yet)

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