How to debug hanging poetry install?

[dimaqq]

I've got poetry install in a state where it seemed stuck, with this snippet of the output:

  • Installing jedi (0.18.2)
  • Installing jsonschema (4.17.3): Pending...
  • Installing matplotlib-inline (0.1.6)

It was stuck like that for more than a minute.
I've checked top, etc to see that it wasn't actually compiling or anything.
It took 2x ^C to kill it in that state.

Running poetry install again was smooth, presumably because most packages were already installed and only few more had to be installed.

How can I help debug an issue like this?