failed again:
stalling plugin...
Installing plugin "Bed Level Visualizer" from https://github.com/jneilliii/OctoPrint-BedLevelVisualizer/archive/master.zip...
/home/pi/oprint/bin/python2 -m pip --disable-pip-version-check install file:///tmp/tmpatjToP/OctoPrint-BedLevelVisualizer-master.zip --no-cache-dir
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Processing /tmp/tmpatjToP/OctoPrint-BedLevelVisualizer-master.zip
Requirement already satisfied: OctoPrint in /home/pi/oprint/lib/python2.7/site-packages (from Bed-Visualizer==0.1.15) (1.4.2)
Collecting numpy<=1.19.2,>=1.16.0
Downloading numpy-1.16.6.zip (5.1 MB)
Requirement already satisfied: requests<3,>=2.23.0 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (2.25.0)
Requirement already satisfied: pylru<2,>=1.2 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (1.2.0)
Requirement already satisfied: Jinja2<3,>=2.11.2 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (2.11.2)
Requirement already satisfied: Click<8,>=7.1.2 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (7.1.2)
Requirement already satisfied: itsdangerous<2,>=1.1.0 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (1.1.0)
Requirement already satisfied: markupsafe<2.0,>=1.1 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (1.1.1)
Requirement already satisfied: markdown<3.2,>=3.1 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (3.1.1)
Requirement already satisfied: Flask-Assets<3,>=2.0 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (2.0)
Requirement already satisfied: PyYAML<6,>=5.3.1 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (5.3.1)
Requirement already satisfied: futures<4,>=3.3; python_version < "3" in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (3.3.0)
Requirement already satisfied: tornado==5.1.1 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (5.1.1)
Requirement already satisfied: filetype<2,>=1.0.7 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (1.0.7)
Requirement already satisfied: pyserial<4,>=3.4 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (3.4)
Requirement already satisfied: wrapt<2,>=1.12.1 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (1.12.1)
Requirement already satisfied: pkginfo<2,>=1.5.0.1 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (1.6.1)
Requirement already satisfied: flask<2,>=1.1.2 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (1.1.2)
Requirement already satisfied: cachelib<1,>=0.1 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (0.1.1)
Requirement already satisfied: future<1,>=0.18.2 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (0.18.2)
Requirement already satisfied: monotonic<2,>=1.5; python_version < "3" in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (1.5)
Requirement already satisfied: websocket-client<1,>=0.57 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (0.57.0)
Requirement already satisfied: netaddr<1,>=0.7.19 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (0.8.0)
Requirement already satisfied: sarge==0.1.5post0 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (0.1.5.post0)
Requirement already satisfied: psutil<6,>=5.7 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (5.7.3)
Requirement already satisfied: blinker<2,>=1.4 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (1.4)
Requirement already satisfied: frozendict<2,>=1.2 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (1.2)
Requirement already satisfied: Flask-Login<0.6,>=0.5 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (0.5.0)
Requirement already satisfied: regex!=2018.11.6 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (2020.11.13)
Requirement already satisfied: werkzeug<2,>=1.0.1 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (1.0.1)
Requirement already satisfied: rsa==4.0 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (4.0)
Requirement already satisfied: unidecode<0.05,>=0.04.14 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (0.4.21)
Requirement already satisfied: OctoPrint-FirmwareCheck>=2020.06.22 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (2020.9.23)
Requirement already satisfied: sentry-sdk<1,>=0.15.1 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (0.19.3)
Requirement already satisfied: feedparser<6,>=5.2.1 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (5.2.1)
Requirement already satisfied: watchdog<1,>=0.10.2 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (0.10.3)
Requirement already satisfied: Flask-Babel<2,>=1.0 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (1.0.0)
Requirement already satisfied: scandir<2,>=1.10; python_version < "3" in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (1.10.0)
Requirement already satisfied: netifaces<1,>=0.10.9 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (0.10.9)
Requirement already satisfied: typing<4,>=3.7.4.1; python_version < "3" in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (3.7.4.3)
Requirement already satisfied: OctoPrint-FileCheck>=2020.07.06 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (2020.8.7)
Requirement already satisfied: emoji<1,>=0.5.4 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (0.6.0)
Requirement already satisfied: semantic-version<3,>=2.8.5 in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (2.8.5)
Requirement already satisfied: chainmap<2,>=1.0.3; python_version < "3" in /home/pi/oprint/lib/python2.7/site-packages (from OctoPrint->Bed-Visualizer==0.1.15) (1.0.3)
Requirement already satisfied: certifi>=2017.4.17 in /home/pi/oprint/lib/python2.7/site-packages (from requests<3,>=2.23.0->OctoPrint->Bed-Visualizer==0.1.15) (2020.11.8)
Requirement already satisfied: chardet<4,>=3.0.2 in /home/pi/oprint/lib/python2.7/site-packages (from requests<3,>=2.23.0->OctoPrint->Bed-Visualizer==0.1.15) (3.0.4)
Requirement already satisfied: urllib3<1.27,>=1.21.1 in /home/pi/oprint/lib/python2.7/site-packages (from requests<3,>=2.23.0->OctoPrint->Bed-Visualizer==0.1.15) (1.26.2)
Requirement already satisfied: idna<3,>=2.5 in /home/pi/oprint/lib/python2.7/site-packages (from requests<3,>=2.23.0->OctoPrint->Bed-Visualizer==0.1.15) (2.10)
Requirement already satisfied: setuptools>=36 in /home/pi/oprint/lib/python2.7/site-packages (from markdown<3.2,>=3.1->OctoPrint->Bed-Visualizer==0.1.15) (44.1.1)
Requirement already satisfied: webassets>=2.0 in /home/pi/oprint/lib/python2.7/site-packages (from Flask-Assets<3,>=2.0->OctoPrint->Bed-Visualizer==0.1.15) (2.0)
Requirement already satisfied: singledispatch in /home/pi/oprint/lib/python2.7/site-packages (from tornado==5.1.1->OctoPrint->Bed-Visualizer==0.1.15) (3.4.0.3)
Requirement already satisfied: backports-abc>=0.4 in /home/pi/oprint/lib/python2.7/site-packages (from tornado==5.1.1->OctoPrint->Bed-Visualizer==0.1.15) (0.5)
Requirement already satisfied: six in /home/pi/oprint/lib/python2.7/site-packages (from websocket-client<1,>=0.57->OctoPrint->Bed-Visualizer==0.1.15) (1.15.0)
Requirement already satisfied: importlib-resources; python_version < "3.7" in /home/pi/oprint/lib/python2.7/site-packages (from netaddr<1,>=0.7.19->OctoPrint->Bed-Visualizer==0.1.15) (3.3.0)
Requirement already satisfied: pyasn1>=0.1.3 in /home/pi/oprint/lib/python2.7/site-packages (from rsa==4.0->OctoPrint->Bed-Visualizer==0.1.15) (0.4.8)
Requirement already satisfied: pathtools>=0.1.1 in /home/pi/oprint/lib/python2.7/site-packages (from watchdog<1,>=0.10.2->OctoPrint->Bed-Visualizer==0.1.15) (0.1.2)
Requirement already satisfied: Babel>=2.3 in /home/pi/oprint/lib/python2.7/site-packages (from Flask-Babel<2,>=1.0->OctoPrint->Bed-Visualizer==0.1.15) (2.9.0)
Requirement already satisfied: pytz in /home/pi/oprint/lib/python2.7/site-packages (from Flask-Babel<2,>=1.0->OctoPrint->Bed-Visualizer==0.1.15) (2020.4)
Requirement already satisfied: zipp>=0.4; python_version < "3.8" in /home/pi/oprint/lib/python2.7/site-packages (from importlib-resources; python_version < "3.7"->netaddr<1,>=0.7.19->OctoPrint->Bed-Visualizer==0.1.15) (1.2.0)
Requirement already satisfied: contextlib2; python_version < "3" in /home/pi/oprint/lib/python2.7/site-packages (from importlib-resources; python_version < "3.7"->netaddr<1,>=0.7.19->OctoPrint->Bed-Visualizer==0.1.15) (0.6.0.post1)
Requirement already satisfied: pathlib2; python_version < "3" in /home/pi/oprint/lib/python2.7/site-packages (from importlib-resources; python_version < "3.7"->netaddr<1,>=0.7.19->OctoPrint->Bed-Visualizer==0.1.15) (2.3.5)
Building wheels for collected packages: Bed-Visualizer, numpy
Building wheel for Bed-Visualizer (setup.py): started
Building wheel for Bed-Visualizer (setup.py): finished with status 'done'
Created wheel for Bed-Visualizer: filename=Bed_Visualizer-0.1.15-py2-none-any.whl size=2551301 sha256=17a223ec06ca65253dc22fc60b78ccaefb4a0387b4a538dfb57208faf184363e
Stored in directory: /tmp/pip-ephem-wheel-cache-lv9Rtz/wheels/15/fc/71/ab1e96c9b7098dea26f0a887943ba32eb7bef8e6386639fa21
Building wheel for numpy (setup.py): started
Building wheel for numpy (setup.py): still running...
Building wheel for numpy (setup.py): still running...
Building wheel for numpy (setup.py): still running...
Error!
Could not install plugin, unknown error, please consult octoprint.log for details