segmentation faults with Events

[timpauli]

Hi,

first of all thanks for creating pyo it is of great use.
I get a segmentation fault when i run the following piece of code:

import pyo


class TestInstr(pyo.EventInstrument):
    def __init__(self, **args):
        pyo.EventInstrument.__init__(self, **args)
        self.output = pyo.Phasor()


server = pyo.Server(audio="offline")
server.boot()
server.recordOptions(dur=30)
ls = [
    0.03125,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
    0.0625,
]
e = pyo.Events(instr=TestInstr, beat=ls, signal="output",).play()
e.sig().out()
server.start()
server.shutdown()

This is a minimal made up example.
What am I doing wrong?
I am on Ubuntu 19.10.

Thanks a lot.
Best
Tim

[timpauli]

By the way:

When you remove signal="output" and add self.output.out() to TestInstr it works..

[belangeo]

Hi, it does not segfault here on Debian (either ways). Which python do you use?

[timpauli]

I am using Python 3.7.5 right now.

[belangeo]

Strange, I'm using 3.7.3 (from apt). Can you run your script from the terminal with -X dev and paste the output here ?
python3 -X dev your_script.py

[timpauli]

Pyo message: Offline Server rendering file /home/user/pyo_rec.wav dur=30.000000
Fatal Python error: Segmentation fault

Current thread 0x00007ff48eaea740 (most recent call first):
  File "/home/user/.local/lib/python3.7/site-packages/pyo/lib/server.py", line 828 in start
  File "test.py", line 96 in <module>
[1]    21798 segmentation fault (core dumped)  python3 -X dev test.py

[belangeo]

Which version of pyo?

[timpauli]

1.0.1 installed via pip3

[belangeo]

To really find what is happening, pyo should be compiled with --debug flag and then run under gdb. I'll see if I can find an Ubuntu computer around...