Issue #270 wasn't resolved by instructions in #260 about luma.led_matrix HOT 4 CLOSED

pi@raspberrypi:~ $ git clone https://github.com/rm-hull/luma.led_matrix.git
Cloning into 'luma.led_matrix'...
remote: Enumerating objects: 2202, done.
remote: Counting objects: 100% (37/37), done.
remote: Compressing objects: 100% (36/36), done.
remote: Total 2202 (delta 10), reused 4 (delta 1), pack-reused 2165
Receiving objects: 100% (2202/2202), 11.34 MiB | 2.90 MiB/s, done.
Resolving deltas: 100% (1286/1286), done.
pi@raspberrypi:~ $ cd luma.led_matrix/
pi@raspberrypi:~/luma.led_matrix $ ls
CHANGES.rst  CONTRIBUTING.rst  doc  examples  LICENSE.rst  luma  MANIFEST.in  pyproject.toml  pytest.ini  README.rst  setup.cfg  setup.py  tests  tox.ini
pi@raspberrypi:~/luma.led_matrix $ vi setup.cfg
pi@raspberrypi:~/luma.led_matrix $ sudo pip3 install -e .
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Obtaining file:///home/pi/luma.led_matrix
  Installing build dependencies ... done
  Checking if build backend supports build_editable ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Collecting luma.core>=2.2.0
  Downloading https://www.piwheels.org/simple/luma-core/luma.core-2.3.1-py2.py3-none-any.whl (71 kB)
     |████████████████████████████████| 71 kB 755 kB/s
Collecting rpi-ws281x
  Downloading https://www.piwheels.org/simple/rpi-ws281x/rpi_ws281x-4.3.1-cp39-cp39-linux_armv7l.whl (117 kB)
     |████████████████████████████████| 117 kB 1.9 MB/s
Requirement already satisfied: cbor2 in /usr/local/lib/python3.9/dist-packages (from luma.core>=2.2.0->luma.led-matrix==1.5.0) (5.4.2)
Requirement already satisfied: smbus2 in /usr/local/lib/python3.9/dist-packages (from luma.core>=2.2.0->luma.led-matrix==1.5.0) (0.4.1)
Requirement already satisfied: pillow>=4.0.0 in /usr/lib/python3/dist-packages (from luma.core>=2.2.0->luma.led-matrix==1.5.0) (8.1.2)
Requirement already satisfied: RPI.GPIO in /usr/lib/python3/dist-packages (from luma.core>=2.2.0->luma.led-matrix==1.5.0) (0.7.0)
Requirement already satisfied: pyftdi in /usr/local/lib/python3.9/dist-packages (from luma.core>=2.2.0->luma.led-matrix==1.5.0) (0.53.3)
Requirement already satisfied: deprecated in /usr/local/lib/python3.9/dist-packages (from luma.core>=2.2.0->luma.led-matrix==1.5.0) (1.2.13)
Requirement already satisfied: spidev in /usr/lib/python3/dist-packages (from luma.core>=2.2.0->luma.led-matrix==1.5.0) (3.5)
Requirement already satisfied: wrapt<2,>=1.10 in /usr/lib/python3/dist-packages (from deprecated->luma.core>=2.2.0->luma.led-matrix==1.5.0) (1.12.1)
Requirement already satisfied: pyserial>=3.0 in /usr/lib/python3/dist-packages (from pyftdi->luma.core>=2.2.0->luma.led-matrix==1.5.0) (3.5b0)
Requirement already satisfied: pyusb!=1.2.0,>=1.0.0 in /usr/local/lib/python3.9/dist-packages (from pyftdi->luma.core>=2.2.0->luma.led-matrix==1.5.0) (1.2.1)
Installing collected packages: rpi-ws281x, luma.core, luma.led-matrix
  Running setup.py develop for luma.led-matrix
Successfully installed luma.core-2.3.1 luma.led-matrix rpi-ws281x-4.3.1
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv
pi@raspberrypi:~/luma.led_matrix $ cd examples/
pi@raspberrypi:~/luma.led_matrix/examples $ ./sevensegment_demo.py
Traceback (most recent call last):
  File "./sevensegment_demo.py", line 13, in <module>
    from luma.led_matrix.device import max7219
ImportError: No module named luma.led_matrix.device