So I've recently had a stroke of insanity, deciding that what the
open-source Quake III engine *really* needs is a good, healthy dose of
Python.
Here's the quick version: The Q3 engine is split into the engine
(responsible for rendering, sound, networking, input, and collision
detection) and the game logic. Currently, the game logic can be loaded
as a shared object file (usually for development) or this crazy thing
called a QVM: a bytecode file which is either interpreted or
JIT-compiled. Using ioquake3 (ioquake3.org) as a base, I added Python to
the list.
Frankly, I'm not amazed at how much easier it is to code game logic in
Python, but some people might be. :D I'm working on the client game, and
I'm about 30% done with that part. It looks like it's going to work out
very well. It's the coolest thing to be able to pull down the console
and type "/py print cg.data.pps.ori gin" and have it print out your
current position.
Now that the background is out of the way, I have two questions:
1) Is there a good guide for distributing applications with embedded Python?
I'm planning (so far) on putting libpython2.4.so in the executable
directory, along with everything from
/usr/lib/python2.4 that the interpreter complains about not having.
(I'll try to put them in a zip file - sans zipfile.py - if I possibly
can.) Is there a nicer way to do this?
2) Is there any way to restrict Python modules from accessing files
outside of a sandbox?
One of the nice things about Quake 3's QVM files is that they are very,
very restricted. They have no concept of a standard C library. This
makes some things rather tricky, but also very secure: if the engine
doesn't support it, you can't do it. If you download a Quake 3 mod from
someone, you can be fairly sure it won't hose your system.
In particular, it won't let you access files outside of the game
directory. Is there a way I can accomplish something similar in an
embedded Python application? I probably only have to make it secure on
systems that don't have Python installed.
Neil
1  2278 
Neil Toronto wrote:
>
2) Is there any way to restrict Python modules from accessing files
outside of a sandbox?
As far as I heard, there is no really working way. But maybe that has changed in python 2.5? Or it
will in 3.0? I dunno. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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Hello all
I am a beginner teaching myself python, and I am enjoying it immensely :)
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