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How to install indicator-sound-switcher

I have used indicator-sound-switcher on different desktops - a tool to switch sound output from the panel - including KDE, but on ubuntu-based systems.

In Fedora KDE, I have downloaded the package from the link above, unpacked the archive and read the INSTALL file which says to run

sudo python3 setup.py install.

That seems to have worked, the tool appears in launcher but doesn't start.

When run in terminal I see this:

$ indicator-sound-switcher
Traceback (most recent call last):
  File "/usr/local/bin/indicator-sound-switcher", line 35, in <module>
    require_version('AppIndicator3', '0.1')
  File "/usr/lib64/python3.6/site-packages/gi/__init__.py", line 130, in require_version
    raise ValueError('Namespace %s not available' % namespace)
ValueError: Namespace AppIndicator3 not available

How to install indicator-sound-switcher

I have used indicator-sound-switcher on different desktops - a tool to switch sound output from the panel - including KDE, but on ubuntu-based systems.

In Fedora KDE, I have downloaded the package from the link above, unpacked the archive and read the INSTALL file which says to run

sudo python3 setup.py install.

That seems to have worked, the tool appears in launcher but doesn't start.

When run in terminal I see this:

$ indicator-sound-switcher
Traceback (most recent call last):
  File "/usr/local/bin/indicator-sound-switcher", line 35, in <module>
    require_version('AppIndicator3', '0.1')
  File "/usr/lib64/python3.6/site-packages/gi/__init__.py", line 130, in require_version
    raise ValueError('Namespace %s not available' % namespace)
ValueError: Namespace AppIndicator3 not available