If you do the right thing® and work as a non-admin user under OS X (10.6
/ Snow Leopard), you will get strange errors if you are multiple users
who try to use the GoogleAppEngineLauncher in order to toy with Googles
awesome AppEngine: Only the
non-admin user who (last) installed the program is apple to start the
local server, everybody else gets an error that the server is unable to
launch google/appengine/tools/os_compat.py or some such.
Turns out it’s a permission problem: some of the files (which in my case
are owned by sara:admin), doesn’t have read/execute permission for
everybody else: ``
fladmast:Contents janus$ pwd
/Applications/GoogleAppEngineLauncher.app/Contents
fladmast:Contents janus$ find . -name '*.py' -not -perm -005 | wc -l
466
fladmast:Contents janus$ ls -l `find . -name '*.py' -not -perm +005 | tail -n 1`
-r-xr-x--- 1 sara admin 1938 May 16 08:28 ./Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/tools/bulkload_client.py
The fix is simple: Open a terminal and fix the permissions: ``
fladmast:/ janus$ cd /Applications/GoogleAppEngineLauncher.app/Contents/
fladmast:Contents janus$ sudo chmod -R +r,+X .
(That’s a capital X in the chmod)