# pvpython startup crash (5.5.2, Arch Linux)

**URL:** https://discourse.paraview.org/t/pvpython-startup-crash-5-5-2-arch-linux/551
**Category:** ParaView Support
**Created:** [September 10, 2018, 10:20am UTC](https://discourse.paraview.org/t/pvpython-startup-crash-5-5-2-arch-linux/551 "2018-09-10T10:20:11Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![Daan\_van\_Vugt](https://discourse.paraview.org/user_avatar/discourse.paraview.org/daan_van_vugt/32/51_2.png) [@Daan\_van\_Vugt](https://discourse.paraview.org/u/Daan_van_Vugt)
#### Post date: [September 10, 2018, 10:20am UTC](https://discourse.paraview.org/t/pvpython-startup-crash-5-5-2-arch-linux/551/1 "2018-09-10T10:20:11Z")

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On startup of pvpython it crashes immediately after the update to 5.5.2.  
Additionally, my python plugins crash with a similar segmentation fault now.

/tmp  pvpython 360ms  12:16  
Fatal Python error: \_Py\_InitializeCore: main interpreter already initialized

Current thread 0x00007fc73d7fda80 (most recent call first):  
[localhost:13525] \*\*\* Process received signal \*\*\*  
[localhost:13525] Signal: Aborted (6)  
[localhost:13525] Signal code: (-6)  
[localhost:13525] [0] /usr/lib/libc.so.6(+0x37e00)[0x7fc7546b6e00]  
[localhost:13525] [1] /usr/lib/libc.so.6(gsignal+0x10f)[0x7fc7546b6d7f]  
[localhost:13525] [2] /usr/lib/libc.so.6(abort+0x125)[0x7fc7546a1672]  
[localhost:13525] [3] /usr/lib/libpython3.7m.so.1.0(+0x68672)[0x7fc74e0ac672]  
[localhost:13525] [4] /usr/lib/libpython3.7m.so.1.0(+0xcff5c)[0x7fc74e113f5c]  
[localhost:13525] [5] /usr/lib/libpython3.7m.so.1.0(+0xd367e)[0x7fc74e11767e]  
[localhost:13525] [6] /usr/lib/libpython3.7m.so.1.0(Py\_Main+0x77)[0x7fc74e117a42]  
[localhost:13525] [7] /usr/lib/libvtkPythonInterpreter-pv5.5.so.1(\_ZN20vtkPythonInterpreter6PyMainEiPPc+0x1ed)[0x7fc754e6073d]  
[localhost:13525] [8] /usr/lib/pvpython(\_ZN14ParaViewPython3RunEiiPPc+0x210)[0x55dfd981c610]  
[localhost:13525] [9] /usr/lib/libc.so.6(\_\_libc\_start\_main+0xf3)[0x7fc7546a3223]  
[localhost:13525] [10] /usr/lib/pvpython(\_start+0x2e)[0x55dfd981c19e]  
[localhost:13525] \*\*\* End of error message \*\*\*  
fish: Job 1, “pvpython” terminated by signal SIGABRT (Abort)

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### Author: ![cory.quammen](https://discourse.paraview.org/user_avatar/discourse.paraview.org/cory.quammen/32/11193_2.png) [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [February 7, 2019, 2:29pm UTC](https://discourse.paraview.org/t/pvpython-startup-crash-5-5-2-arch-linux/551/2 "2019-02-07T14:29:20Z")

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This problem is likely caused by a regression in Python 3.7. See the discussion at [https://gitlab.kitware.com/vtk/vtk/issues/17363](https://gitlab.kitware.com/vtk/vtk/issues/17363). Changing to PYthon 3.7.1 should resolve the crash.

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### Author: ![Daan\_van\_Vugt](https://discourse.paraview.org/user_avatar/discourse.paraview.org/daan_van_vugt/32/51_2.png) [@Daan\_van\_Vugt](https://discourse.paraview.org/u/Daan_van_Vugt)
#### Post date: [February 7, 2019, 2:45pm UTC](https://discourse.paraview.org/t/pvpython-startup-crash-5-5-2-arch-linux/551/3 "2019-02-07T14:45:09Z")

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Hi Cory,

Thanks for getting back to me, indeed with Python 3.7.1 I do not experience this crash anymore (paraview 5.6.0 on arch linux)

Best,  
Daan

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### Author: ![cory.quammen](https://discourse.paraview.org/user_avatar/discourse.paraview.org/cory.quammen/32/11193_2.png) [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [February 8, 2019, 7:29pm UTC](https://discourse.paraview.org/t/pvpython-startup-crash-5-5-2-arch-linux/551/4 "2019-02-08T19:29:27Z")

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Great, thanks for following up!