What to install for pyflakes and nosetests?

Thanks for any help!

What happened?

  > Checking your enabled modules...
    > :lang python
      ! Couldn't find pyflakes. Import management will not work.
      ! Couldn't find nosetests. Running tests through nose will not work.

There are 2 warnings!

What did you expect to happen?

No warnings.

Steps to reproduce

Seems to be unique to me. I have the following installed:

flake8/stable,stable,now 5.0.4-4 all [installed]
pyflakes3/stable,stable,now 2.5.0-1 all [installed]
python3-flake8/stable,stable,now 5.0.4-4 all [installed,automatic]
python3-pyflakes/stable,stable,now 2.5.0-1 all [installed]
python3-pylama/stable,stable,now 7.4.3-5 all [installed]
python3-nose/stable,stable,now 1.3.7-9 all [installed]
python3-nose2/stable,stable,now 0.12.0-1 all [installed]

System information

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