Please allow recent versions of nbconvert and traitlets

[martenwa]

The newly released nbgrader-0.6.2 still enforces really old versions nbconvert==5.6.1 and traitlets==4.3.3 in setup.py. What is expected to break in newer versions of those packages?

nbgrader-0.6.2-allow-recent-nbconvert-and-traitlets.patch.txt

(Here, nbgrader seems to work just fine with nbconvert==6.0.7 and traitlets==5.0.5)

[jhamrick]

The master version of nbgrader already supports the most recent version of traitlets (#1442). nbconvert 6 breaks nbgrader in a few pretty serious ways (in particular, the formgrader and feedback functionality no longer work). Most of the breakages have been addressed in #1421 but we unfortunately are currently blocked by one last issue upstream. The plan is that once this last issue is resolved and we can support nbconvert 6, we will make a 0.7.0 release which will unpin nbconvert.

[kno10]

By now, this makes nbgrader installation a PITA.
ipython 8.2.0 has requirement traitlets>=5, but you'll have traitlets 4.3.3 which is incompatible.
ipykernel 6.13.0 has requirement traitlets>=5.1.0, but you'll have traitlets 4.3.3 which is incompatible.

Is there any documentation on the version requirements for the last nbgrader release?