package review requests - three packages

[Mukundan Ragavan]

Hi all,

Can people please review a few python packages for me? These should be 
relatively straightforward.

* dependencies for spyder
pyls_black - https://bugzilla.redhat.com/show_bug.cgi?id=1901757
pyls-spyder - https://bugzilla.redhat.com/show_bug.cgi?id=1901758

* dependency for nbconvert
jupyterlab_pygments -
https://bugzilla.redhat.com/show_bug.cgi?id=1901759

I am still working on updating nbconvert to 6.0.7 and more package 
reviews may be "incoming".

Thanks,
Mukundan.