[Python-Dev] Python Core Tools

[Maciej Fijalkowski]

On Sun, Oct 2, 2011 at 5:02 AM, anatoly techtonik <techtonik at gmail.com> wrote:
> Hello,
>
> I've stumbled upon Dave Beazley's article [1] about trying ancient GIL
> removal patch at
> http://dabeaz.blogspot.com/2011/08/inside-look-at-gil-removal-patch-of.html
> and looking at the output of Python dis module thought that it would
> be cool if there were tools to inspect, explain and play with Python
> bytecode. Little visual assembler, that shows bytecode and disassembly
> side by side and annotates the listing with useful hints (like
> interpreter code optimization decisions). That will greatly help many
> new people understand how Python works and explain complicated stuff
> like GIL and stackless by copy/pasting pictures from there. PyPy has a
> tool named 'jitviewer' [2] that may be that I am looking for, but the
> demo is offline.

I put demo back online.

https://bitbucket.org/pypy/pypy/src/59460302c713/lib_pypy/disassembler.py

this might be of interest. It's like dis module except it creates
objects instead of printing them

>
> But even without this tool I know that speakers at conferences create
> various useful scripts to gather interesting stats and visualize
> Python internals. I can name at least 'dev in a box' [3] project to
> get people started quickly with development, but I am sure there many
> others exist. Can you remember any tools that can be useful in Python
> core development? Maybe you use one every day? I'd like to compile a
> list of such tools and put in to Wiki to allow people have some fun
> with Python development without the knowledge of C.
>
>
> 1. http://dabeaz.blogspot.com/2011/08/inside-look-at-gil-removal-patch-of.html
> 2. http://morepypy.blogspot.com/2011/08/visualization-of-jitted-code.html
> 3. http://hg.python.org/devinabox/
> --
> anatoly t.
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