[PyQt] PyQt 5.7.1: Segfault in PyInit_QtCore -> ... -> PyUnicode_FromFormatV -> strlen

[Detlev Offenbach]

Hi,

if they upgraded having had the distribution provided packages installed can cause such 
strange issues. They should first uninstall all distro provided packages and than do pip 
install ...

I had such a report yesterday and following the above method got the user back up and 
working.

Detlev

On Saturday 07 January 2017, 10:57:29 Florian Bruhin wrote:
> Hi,
> 
> some users of my application reported that they get an instant
> segfault when importing Qt modules after updating to PyQt 5.7.1 and
> sip 4.19:
> 
> 	#0  strlen () at ../sysdeps/x86_64/strlen.S:106
> 	#1  0x00005555556fbb43 in PyUnicode_FromFormatV ()
> 	#2  0x00005555556ba6f3 in PyErr_FormatV ()
> 	#3  0x00005555556ba7b4 in PyErr_Format ()
> 	#4  0x00007ffff25dfbe6 in ?? ()
> 	   from .../python3.5/site-packages/sip.cpython-35m-x86_64-linux-gnu.so
> 	#5  0x00007ffff61f7ab5 in PyInit_QtCore ()
> 	   from .../python3.5/site-packages/PyQt5/QtCore.so
> 	#6  0x00005555557abc91 in _PyImport_LoadDynamicModuleWithSpec ()
> 	[...]
> 
> Full stacktrace:
> https://github.com/The-Compiler/qutebrowser/issues/2206#issuecomment-2702652
> 99
> 
> Any idea what could be going on there?
> 
> Florian-- 
*Detlev Offenbach*
detlev at die-offenbachs.de
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