>>708
> ruby,pythonなんか遅いからそんなことやってないと思うが。

${PYTHON}/Doc/glossary.rst
bytecode
Python source code is compiled into bytecode, the internal representation
of a Python program in the interpreter. The bytecode is also cached in
``.pyc`` and ``.pyo`` files so that executing the same file is faster the
second time (recompilation from source to bytecode can be avoided). This
"intermediate language" is said to run on a :term:`virtual machine`
that executes the machine code corresponding to each bytecode.