Gnuradio 3.8 and gr-limesdr: No module named 'limesdr'

Projects LimeSDR
1

Hi!
I am running Ubuntu 18.04 with Gnuradio 3.8.1.0 and the latest version of gr-limesdr (compiled from the GR 3.8 branch).
When i run the FM_receiver example, or any other flowchart containing the limesdr module, i get this error:

 <<< Welcome to GNU Radio Companion 3.8.1.0 >>>

Block paths:
	/usr/share/gnuradio/grc/blocks
	/usr/local/share/gnuradio/grc/blocks

Loading: "/home/pc/gr-limesdr/examples/FM_receiver.grc"
>>> Done

Generating: '/home/pc/gr-limesdr/examples/top_block.py'

Executing: /usr/bin/python3 -u /home/pc/gr-limesdr/examples/top_block.py

Traceback (most recent call last):
  File "/home/pc/gr-limesdr/examples/top_block.py", line 40, in <module>
    import limesdr
ModuleNotFoundError: No module named 'limesdr'

>>> Done (return code 1)

I’ve tried setting the $PYTHONPATH variable to the right directory but no difference.

I really don’t want to go back to GR 3.7, any idea?