Re: [Pythonmac-SIG] Should Python.app be an LSUIElement = 1 app?

[Ronald Oussoren]

On 3 Feb, 2009, at 18:55, Bill Janssen wrote:

Ronald Oussoren <ronaldousso...@mac.com> wrote:

On 3 Feb, 2009, at 17:54, Bill Janssen wrote:

I'm seriously wondering if having "Python Launcher.app" is a good
idea, and if we shouldn't scrap it entirely. If building full app
bundles using py2app is too much of a burden we could look into
providing an easier and more lightweight way to build such bundles.

I definitely see the need for very thin .app bundles as well.

The fully standalone bundles that py2app creates are very useful, but

Interesting idea.  What's the lightest thing that's an app, anyway?

structure). The executable can be shell-script on Leopard, but a
simple executable would IMHO be better.  One way to structure such an
executable is to read the name of the actual script to execute from
the Info.plist (using a custom key) and then use the standard Python
C-
API to execute that script.

AFAIK an executable + Info.plist + icon file (plus the right directory

the Python C API -- sort of the way that Java apps use the

it could be a shell script:

 #!/usr/bin/python
 import plistlib, os

 os.execv(['/usr/bin/python', script])

I didn't test that!

So you'd have a little custom launcher that would read that key and use JavaApplicationStub. Doesn't actually have to be a C program, you know; script = os.path.normpath(plistlib.readPlist('../Info.plist') ['ApplicationPythonScript'])

Not quite, you must ensure that the C-level argv[0] points to a location inside the app bundle, otherwise the system won't know you're supposed to be an executable. Getting that right is possible (just copy the python executable into the bundle as well), but just writing a small stub executable is not too hard and avoids issues like <http://bugs.python.org/issue5143 >.

Ronald

Bill

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