I've been building a 64 bit Python 3.4.2 app on OS X 10.10, which I bundle as a Mac app using py2app 0.9. I have adapted the app's Info.plist file, so that OS X knows that files with a certain file name suffix can be opened by my app.
When a user double-clicks a file with a certain file name suffix in the Finder, this opens the app and sends the name of the double-clicked file as an argument to the app.
If the app is already running, though, and I double-click a second file with a matching file name suffix, this file name doesn't seem to be handed over to my app.
And this is exactly what I try to implement: no matter if my app is already running, if I double-click a matching file in the Finder, it should be opened in my app.
I have seen that py2app creates the file Contents/Resources/boot.py, which seems to catch the odoc Apple Event sent by the Finder, and sends it to my Python app.
I added some logging to the boot.py file and saw that boot.py doesn't seem to be invoked when my py2app bundled Python app is already running and I double-click a file in the Finder.
Any input would be appreciated.
Thanks a lot in advance,
André
I just learned, that Tk on a Mac can process some AppleEvents, like e.g. opening documents.
There's a good example at code.activestate.com/lists/pythonmac-sig/23079 and the Mac specific Tk functions are listed at tcl.tk/man/tcl/TkCmd/tk_mac.htm. Basically you just add something like
tk.createcommand("::tk::mac::OpenDocument", doOpenFile)
to your Tk event loop, where doOpenFile needs to point to a function like this:
def doOpenFile(*args):
for f in args:
do something
This works well in Python 2.7 and Python 3.4.2 (haven't tested other versions).