mountain lion doesn't use latest system python?

General Discussion
1

Hi there,

I saw that Mac 10.8 was using python 2.7.2 as system version, and since Panda3D is suppose to compile off the default system version, I assumed Panda3d would use 2.7.2 on Mac 10.8. It appears I was mistaken, as ppython is pointing to 2.5, not 2.7, and if I try to use Panda3d with 2.7, it gives me an error:

ppython -V Python 2.5.6 /usr/bin/python -V
Python 2.7.2
$ /usr/bin/python Tut-Asteroids.py
Traceback (most recent call last):
File “Tut-Asteroids.py”, line 13, in
import direct.directbase.DirectStart
ImportError: No module named direct.directbase.DirectStart

If I try to use ppython, it tries to start, but wants X11 to be installed.

I’m bummed, because I really didn’t want to upgrade; I only upgraded because I thought Panda3d would now use a more recent version of Python. I even uninstalled Panda3d and re-installed it, to no avail. :frowning: Could this be something stupid I did, or does Panda3d not use 2.7 on Mountain Lion?

2

Panda supports older versions of OSX, which means the downloadable version is compiled against an older version of Python. If you require Panda to use a newer version of Python I believe you will need to compile it yourself from the source code with the desired version of Python.

3

I wish this had been clear before I upgraded. I swear I had seen references to Panda3D using 2.7 on Mountain Lion. Oh, well, I guess I’ll be compiling after all. Maybe someone else will learn from my mistake.

~maria

4

There are experimental 64-bits builds floating around the forum compiled against Python 2.7, such as this one:
rdb.name/Panda3D-1.9.0.dmg
(it’s not complete, as it lacks support for some thirdparty packages such as ffmpeg, and it’s a relatively old build on top of that.)

5

I managed to get Panda3d working with 2.7.5 python. I used the installer and then linked ppython to the 2.7 version, and so far everything seems to work.

sudo rm /usr/bin/ppython sudo ln -s /System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/
MacOS/Python /usr/bin/ppython

I have to start my panda files by using:

$ arch -i386 ppython panda_file.py

Since ppython isn’t linked to system Python, the export VERSIONER_PYTHON_PREFER_32_BIT=yes doesn’t work. I also had to install XQuartz, since X11 is no longer installed on Mountain Lion.

xquartz.macosforge.org/landing/

I also did this:

sudo cp /Library/Python/2.5/site-packages/Panda3D.pth /Library/Python/2.7/site-packages/

but I’m not sure that did anything.

I also tried to compile myself, but that was a bit of a nightmare, and this seems to be okay.