Hi,
A while back on Oct 13, 2010, at 7:20 PM, James Y Knight wrote:
> You need to avoid using or importing any OSX APIs until after the
> daemonization has occurred. Unfortunately, twisted executes the entire script
> file before daemonizing. [that's unfortunate for other reasons besides this,
> too]
>
> Here's a corrected version of your script which works properly. It defers
> importing Quartz until the reactor is running, by moving it into a function
> called by reactor.callWhenRunning().
Deferring OSX API's until after daemonisation was the solution. My test script,
fixed by James, works on macbook, but when I run it on a remote OSX server
mini, it doesn't. It crashes as before with
USING_FORK_WITHOUT_EXEC_IS_NOT_SUPPORTED_BY_FILE_MANAGER) . Both machines run
the same versions of python, pyobjc, twisted. Some digging showed that on the
mini twisted.application.reactors imports zope.interface, which in turn runs
this:
__import__('pkg_resources').declare_namespace(__name__)
and this causes Carbon to be loaded, before daemonisation. I can't defer
loading reactor because I need it to make things tick, so I'm stuck.
Could this be related to http://twistedmatrix.com/trac/ticket/4644 ?
Any clues to why pkg_resources would cause Carbon to load on one machine, but
not on another?
Any clues to prevent it these modules from loading?
Local:
System Version: Mac OS X 10.6.4 (10F569)
Kernel Version: Darwin 10.4.0
Remote:
System Version: Mac OS X Server 10.6.4 (10F569)
Kernel Version: Darwin 10.4.0
Thanks,
Erik_______________________________________________
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