Python compilation ??
cathy at nachofoto.com
Tue Jul 3 08:58:31 CEST 2007
Ahh!! lots of thoughts!!
On 7/2/07, John Nagle <nagle at animats.com> wrote:
> Evan Klitzke wrote:
> > On 7/2/07, Cathy Murphy <cathy at nachofoto.com> wrote:
> >> Is python a compiler language or interpreted language. If it is
> >> interpreter
> >> , then why do we have to compile it?
> > It's an interpreted language. It is compiled into bytecode (not
> > machine code) the first time a script is run to speed up subsequent
> > executions of a script.
> CPython compiles to an intermediate form, rather than
> all the way to machine code, and executes the intermediate form,
> which is basically a tree, with an interpreter written in C.
> ShedSkin Python compiles to C++, then all the way to machine code.
> Some CPython features have to be disallowed, but there's a huge
> performance gain.
> Jython compiles to Java byte code, which is then compiled to
> machine code by a just-in-time compiler.
> Iron Python compiles to Microsoft's byte code as used by their
> ".NET" common language runtime. This is then compiled to machine
> code by a just-in-time compiler.
> John Nagle
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