🔒 How to change volume on linux in py

[sinful oasis]

I am running popOS linux (which is based on ubuntu) and I am trying to change an application's/master volume from python. How can I do this? I've already googled this to no avail, so thanks in advance!

[astral kestrel]

@sinful oasis

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[tribal shell]

!pip pulsectl

[astral kestrel]

pulsectl v23.5.2

Python high-level interface and ctypes-based bindings for PulseAudio (libpulse)

Released on <t:1684788571:D>.

[tribal shell]

(I'm assuming you're using pulseaudio/pulse-pipewire as your audio server)

[sinful oasis]

okay, let me try that!

okay, so I've got it downloaded and am running this code: ```py
from pulsectl import Pulse, PulseVolumeInfo

with Pulse('volume-increaser') as pulse:
for sink in pulse.sink_list():
# Volume is usually in 0-1.0 range, with >1.0 being soft-boosted
pulse.volume_change_all_chans(sink, 0.1)```

I'm not exactly sure what I'm doing wrong here, but it is not running

[sinful oasis]

this is the error:

  File "/home/braxtenchenay/Programming/Personal/Python/Anti-swear/main.py", line 7, in <module>
    pulse.volume_change_all_chans(sink, 0.1)
  File "/home/braxtenchenay/.var/app/com.visualstudio.code-oss/data/python/lib/python3.10/site-packages/pulsectl/pulsectl.py", line 805, in volume_change_all_chans
    self.volume_set(obj, obj.volume)
  File "/home/braxtenchenay/.var/app/com.visualstudio.code-oss/data/python/lib/python3.10/site-packages/pulsectl/pulsectl.py", line 794, in volume_set
    method(obj.index, vol)
  File "/home/braxtenchenay/.var/app/com.visualstudio.code-oss/data/python/lib/python3.10/site-packages/pulsectl/pulsectl.py", line 631, in _wrapper
    with self._pulse_op_cb() as cb:
  File "/usr/lib/python3.10/contextlib.py", line 142, in __exit__
    next(self.gen)
  File "/home/braxtenchenay/.var/app/com.visualstudio.code-oss/data/python/lib/python3.10/site-packages/pulsectl/pulsectl.py", line 523, in _pulse_op_cb
    if not self._actions[act_id]: raise PulseOperationFailed(act_id)
pulsectl.pulsectl.PulseOperationFailed: 1```

[astral kestrel]

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