pymol crashing under Qt on Catalina

[Chris Jones]

After that, my next guess would perhaps another issue related to the stack-check issue with Xcode 11. See e.g. the fix I added for OpenBLAS

https://github.com/macports/macports-ports/commit/6e78e5c9495b4dc4e7e050fae2b41dd5b9accfdd#diff-a755de84ca7f97ab071328807d829e0b

> On 13 Oct 2019, at 2:31 pm, Chris Jones <jonesc at hep.phy.cam.ac.uk> wrote:
> 
> Hi,
> 
> What Xcode version are you using ? If 11.0, first try updating to 11.1 and then rebuild the various ports (including python).
> 
> Chris
> 
>> On 13 Oct 2019, at 1:52 pm, Jack Howarth <howarth.at.macports at gmail.com> wrote:
>> 
>> 
>>      The +python37 variant of pymol runs fine under its Qt interface on Catalina, however the stock +python27 variant crashes Qt as follows...
>> 
>> Process:               Python [46230]
>> Path:                  /opt/local/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python
>> Identifier:            Python
>> Version:               2.7.16 (2.7.16)
>> Code Type:             X86-64 (Native)
>> Parent Process:        zsh [907]
>> Responsible:           Terminal [342]
>> User ID:               501
>> 
>> Date/Time:             2019-10-13 08:42:10.315 -0400
>> OS Version:            Mac OS X 10.15 (19A583)
>> Report Version:        12
>> Anonymous UUID:        4A09CC71-7509-3F2D-8C77-BB546FDAFB8D
>> 
>> Sleep/Wake UUID:       A3189974-D375-47A3-B65F-45F7E7DE5271
>> 
>> Time Awake Since Boot: 16000 seconds
>> Time Since Wake:       12000 seconds
>> 
>> System Integrity Protection: disabled
>> 
>> Crashed Thread:        0  Dispatch queue: com.apple.main-thread
>> 
>> Exception Type:        EXC_BAD_ACCESS (SIGSEGV)
>> Exception Codes:       KERN_INVALID_ADDRESS at 0xffffffffffffffff
>> Exception Note:        EXC_CORPSE_NOTIFY
>> 
>> Termination Signal:    Segmentation fault: 11
>> Termination Reason:    Namespace SIGNAL, Code 0xb
>> Terminating Process:   exc handler [46230]
>> 
>> The entire crash report is attached. Any idea what is going on here as it seems to be specific to python2.7?
>>          Jack
>> 
>> 
>> <pymol_python27_crash.log>
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