pi@Ender3:~ $  ~/oprint/bin/pip install --force-reinstall --no-cache-dir OctoPrint==1.5.3
DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. pip 21.0 will drop support for Python 2.7 in January 2021. More details about Python 2 support in pip can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support pip 21.0 will remove support for this functionality.
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Collecting OctoPrint==1.5.3
  Downloading OctoPrint-1.5.3-py2.py3-none-any.whl (3.8 MB)
     |████████████████████████████████| 3.8 MB 3.5 MB/s
Collecting OctoPrint-FileCheck>=2020.08.07
  Downloading OctoPrint_FileCheck-2020.8.7-py2.py3-none-any.whl (19 kB)
Collecting futures<4,>=3.3; python_version < "3"
  Downloading futures-3.3.0-py2-none-any.whl (16 kB)
Collecting semantic-version<3,>=2.8.5
  Downloading semantic_version-2.8.5-py2.py3-none-any.whl (15 kB)
Collecting itsdangerous<2,>=1.1.0
  Downloading itsdangerous-1.1.0-py2.py3-none-any.whl (16 kB)
Collecting future<1,>=0.18.2
  Downloading future-0.18.2.tar.gz (829 kB)
     |████████████████████████████████| 829 kB 3.8 MB/s
Collecting blinker<2,>=1.4
  Downloading blinker-1.4.tar.gz (111 kB)
     |████████████████████████████████| 111 kB 3.6 MB/s
Collecting unidecode<0.05,>=0.04.14
  Downloading Unidecode-0.04.21-py2.py3-none-any.whl (228 kB)
     |████████████████████████████████| 228 kB 4.0 MB/s
Collecting werkzeug<2,>=1.0.1
  Downloading Werkzeug-1.0.1-py2.py3-none-any.whl (298 kB)
     |████████████████████████████████| 298 kB 3.4 MB/s
Collecting Flask-Assets<3,>=2.0
  Downloading Flask-Assets-2.0.tar.gz (23 kB)
Collecting PyYAML<6,>=5.3.1
  Downloading PyYAML-5.4.1.tar.gz (175 kB)
     |████████████████████████████████| 175 kB 4.1 MB/s
  Installing build dependencies ... error
  ERROR: Command errored out with exit status 1:
   command: /home/pi/oprint/bin/python2 /home/pi/oprint/local/lib/python2.7/site-packages/pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-lpgnkH/overlay --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple --extra-index-url https://www.piwheels.org/simple -- setuptools wheel Cython
       cwd: None
  Complete output (24 lines):
  Traceback (most recent call last):
    File "/usr/lib/python2.7/runpy.py", line 174, in _run_module_as_main
      "__main__", fname, loader, pkg_name)
    File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
      exec code in run_globals
    File "/home/pi/oprint/lib/python2.7/site-packages/pip/__main__.py", line 26, in <module>
      sys.exit(_main())
    File "/home/pi/oprint/lib/python2.7/site-packages/pip/_internal/cli/main.py", line 73, in main
      command = create_command(cmd_name, isolated=("--isolated" in cmd_args))
    File "/home/pi/oprint/lib/python2.7/site-packages/pip/_internal/commands/__init__.py", line 105, in create_command
      module = importlib.import_module(module_path)
    File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
      __import__(name)
    File "/home/pi/oprint/lib/python2.7/site-packages/pip/_internal/commands/install.py", line 17, in <module>
      from pip._internal.cli.req_command import RequirementCommand, with_cleanup
    File "/home/pi/oprint/lib/python2.7/site-packages/pip/_internal/cli/req_command.py", line 18, in <module>
      from pip._internal.index.collector import LinkCollector
    File "/home/pi/oprint/lib/python2.7/site-packages/pip/_internal/index/collector.py", line 14, in <module>
      from pip._vendor import html5lib, requests
    File "/home/pi/oprint/lib/python2.7/site-packages/pip/_vendor/requests/__init__.py", line 43, in <module>
      from pip._vendor import urllib3
    File "/home/pi/oprint/lib/python2.7/site-packages/pip/_vendor/urllib3/__init__.py", line 9, in <module>
      from logging import NullHandler
  ImportError: cannot import name NullHandler
  ----------------------------------------
ERROR: Command errored out with exit status 1: /home/pi/oprint/bin/python2 /home/pi/oprint/local/lib/python2.7/site-packages/pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-lpgnkH/overlay --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple --extra-index-url https://www.piwheels.org/simple -- setuptools wheel Cython Check the logs for full command output.
pi@Ender3:~ $