Hi. On Fri, Dec 31, 2021 at 01:35:47PM -0700, D. R. Evans wrote: > Reco wrote on 12/17/21 6:10 AM: > > Hi. > > > > On Thu, Dec 16, 2021 at 12:43:51PM -0700, D. R. Evans wrote: > > > FileNotFoundError: [Errno 2] No such file or directory: '/usr/bin/python' > > ... > > > Can someone suggest how I might get back to the fully-working set of > > > kernels that I had in buster? > > > > Try this: > > > > apt install python-is-python3 > > Thank you very much. > > That was certainly a help (although I wonder why it was necessary for me to > do that manually),
It's official Debian policy now, believe it or not. python 2.x is /usr/bin/python2. python 3.x is /usr/bin/python3. If the user really wants /usr/bin/python the user should install python-is-python2 or python-is-python3. And these two packages conflict with each other. > but ultimately I am still unable to do anything. I'm not familiar with jupyter and I'm not using it. What I do know is: a) /usr/bin/python was python 2.x in Debian 10. b) Python 2.x and python 3.x modules are not compatible nor they are interchangeable. Judging from [1], you're required to reinstall all these "jupyter kernels", because what you have was installed for python2, but what you need is to install them for python3. But then again, I could be wrong. Sorry, cannot help you further. Reco [1] https://github.com/takluyver/bash_kernel