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(python2.1-ref.info)Top-level components

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Enter node , (file) or (file)node

Top-level components
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The Python interpreter can get its input from a number of sources: from
a script passed to it as standard input or as program argument, typed
in interactively, from a module source file, etc.  This chapter gives
the syntax used in these cases.

Complete Python programs

File input

Interactive input

Expression input