Keynote: David Beazley

Author

• David Beazley

Let’s Talk About (something diabolical)

• Let’s talk about Pypy
• Python implemented in Python
• Quite a bit faster because of magic
• Mandlebrot runs 34x faster
• Which one can you adjust with a pocketknife?

Thinking about Tinkering

• CPython has patches, extensions, ideas
• Talking about GIL, etc, wouldn’t be possible without tinkering
• iPython notebook is an examples of this
• Is it just “evil geniuses”?
• Can you tinker with PyPy?
• Can I teach myself to tinker with it using just resources available, part-time?
• Building PyPy is challenging
• Takes hours, > 4gbs of memory, might break C compiler
• RPython is a restricted subset of the language, but can run as valid Python
• RPython is defined by the translation toolchain
• If you love Python, you will hate RPython
• Uses type inference
• Lists need to be of a single type
• Pypy uses the bytecode interpreter and an abstract runtime to compile to C code