Spyder and Jupyter packages - semi-VAC ongoing

[Julian Gilbey]

Dear all,

With my relatively new job, I'm finding that I have almost no time to
do Debian packaging work.  I have been almost single-handedly
maintaining all of the Spyder-related packages and recently
contributed to a good number of Jupyter-related packages.  All of
these packages are (at least nominally) team-maintained in either the
Debian Python or Debian Science teams.

Please feel free to upload updates to these packages as needed without
asking me, though you are welcome to drop me an email if you want.

A few points worth noting (there are probably others that I've
forgotten at the moment):

* python-bytecode -> pydevd -> debugpy

  Each of these packages is used to build the next package in the
  list, by copying the code into it in place of the vendored code.  In
  particular, pydevd and debugpy are currently developed together,
  with pydevd being embedded in debugpy, so any updates to pydevd
  should be accompanied by a corresponding update to debugpy.

* pydevd and debugpy

  These are only developed upstream for the amd64 architecture.  As
  they make use of lots of the innards of Python (that I don't
  understand), there are multiple test failures on other archs that
  upstream will not address.  These are handled in
  debian/get_test_exclusions, which needs regular updating when the
  autobuilders or autopkgtests fail.

* spyder

  The autopkgtest setup is somewhat involved.  Experience has shown
  that this is needed, so it would be unwise to try to collapse it
  back to a single test.

* nbdime (ITP #975509)

  This ITP is currently blocked by node-rjsf.  I doubt that I'll have
  time to finish packaging it once node-rjsf is fixed, though.

Thanks for everyone's help in advance!

Best wishes,

   Julian