2.x, 3.x iOS static build: Fatal Python error: exceptions bootstrapping error.

[Terry Reedy]

On 5/20/2012 11:33 PM, angeljanai at gmail.com wrote:

> I'm trying to embed a part of python (core+some modules) in my iOS application for internal scripting.

I have not read that anyone has run under iOS yet ;-). Good luck.

  I started from compiling original unmodified Python source. Tried both 
2.7.3 and 3.x latest source code. As I found no easy way to configure 
it, just tried to run configure from Mac OS X(10.7) and it was successful.
> After that I created XCode project and added all necessary files from after-configure source. There were some minor problems, but compilation and link errors were fixed very quickly.
> Finally I tried to create a test program, which has just this:
> ...
> Py_NoSiteFlag=1;
> Py_Initialize();
> Py_Finalize();
> ...
> When I run it I getting "Fatal Python error: exceptions bootstrapping error."
> Call stack is:

[opposite order from Python tracebacks]

> #0	0x300cba1c in __pthread_kill ()
> #1	0x362e43ba in pthread_kill ()
> #2	0x362dcbfe in abort ()
> #3	0x00127d96 in Py_FatalError at /Users/mac_user/Downloads/Python-3.2.3/IOS/pythoncore/../../Python/pythonrun.c:2169
> #4	0x00155328 in _PyExc_Init at /Users/mac_user/Downloads/Python-3.2.3/IOS/pythoncore/../../Objects/exceptions.c:2042

You said you tried to debug. What have you done? Message above is from 
one of these locations in exceptions.c or pythonrun.c.

> #5	0x00127ad4 in Py_InitializeEx at /Users/mac_user/Downloads/Python-3.2.3/IOS/pythoncore/../../Python/pythonrun.c:272
> #6	0x0012846a in Py_Initialize at /Users/mac_user/Downloads/Python-3.2.3/IOS/pythoncore/../../Python/pythonrun.c:332
> #7	0x000d6242 in testpython at /Users/mac_user/Downloads/Python-3.2.3/IOS/test/test/testmac.c:15
> #8	0x000d618e in -[ViewController viewDidLoad] at /Users/mac_user/Downloads/Python-3.2.3/IOS/test/test/ViewController.m:23
> #9	0x3283ff0e in -[UIViewController view] ()
> #10	0x3283e2b4 in -[UIWindow addRootViewControllerViewIfPossible] ()
> #11	0x3283a332 in -[UIWindow _setHidden:forced:] ()
> #12	0x3283e28e in -[UIWindow _orderFrontWithoutMakingKey] ()
> #13	0x3284cc60 in -[UIWindow makeKeyAndVisible] ()
> #14	0x000d5ffe in -[AppDelegate application:didFinishLaunchingWithOptions:] at /Users/mac_user/Downloads/Python-3.2.3/IOS/test/test/AppDelegate.m:35
> #15	0x3283e820 in -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] ()
> #16	0x32838b64 in -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] ()
> #17	0x3280d7d6 in -[UIApplication handleEvent:withNewEvent:] ()
> #18	0x3280d214 in -[UIApplication sendEvent:] ()
> #19	0x3280cc52 in _UIApplicationHandleEvent ()
> #20	0x322b7e76 in PurpleEventCallback ()
> #21	0x3113ba96 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ ()
> #22	0x3113d83e in __CFRunLoopDoSource1 ()
>
> XCode version is 4.3.2.
> I tried to debug, and unfortunately I don't understand why this error is occured.
> Also tried source from here: http://stackoverflow.com/a/4177748/1337666.
> But no luck, same problem.
> Porting Python core will be very helpful for my iOS application.
> Any hint will be appreciated.
> Best Regards

-- 
Terry Jan Reedy