Trying to update to OctoPrint1.5.3 ends with an error

What is the problem?

After a longer period I had to update everything. the last one was OctoPrint 1.5.3
The installation ended always with an error message
I just want to continue where I have been already ....

ERROR: Command errored out with exit status 1:
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-6QlDfe/overlay --no-warn-script-location --no-binary :none: --only-binary :none: -i --extra-index-url -- setuptools wheel Cython Check the logs for full command output.

What did you already try to solve it?

I deinstalled several plugins which have been outdated.

Have you tried running in safe mode?

hoiw to start the safe mode for an installation???

Did running in safe mode solve the problem?


Complete Logs

If I input the log the system tells me 'as new user you can only put 5 links'

Additional information about your setup

Ender3 with Raspberry Pi 3 and OctoPrint 1.4
PiCam (which makes a problem as well....

Hello @Simon_Scholz!

You can upload the logs as a file here. You also can zip them together. But please upload them here. We do not all have access to all the file sharing sites.