Instrument the main function as anchor span for checking overhead and
update tracing-durations-export to 0.2.0 for differentiating
blocking/non-blocking tasks.
Add a `jupyter.in` requirement since `pip install jupyter` is a common
operation. I tried `jupyterlab` too but there is no difference in
performance (1.00 ± 0.07).
## Summary
This makes the separation clearer between the legacy `pip` API and the
API we'll add in the future for the package manager itself. It also
enables seamless `puffin pip` aliasing for those that want it.
Closes#918.
This requirements file contains a pathological case where we have to
step through all the versions. I'm putting it in git to make it easier
to collaborate on it.
Remove a dev annoyance: This makes the development paths shorter, e.g.
`scripts/benchmarks/requirements/all-kinds.in` to
`scripts/requirements/all-kinds.in`. The requirements are also shared
between different tasks and not only used for benchmarking.
