Minutes_2020_12_01

Numba Meeting: 2020-12-01

Attendees: Siu, Stu, Todd, Guilherme, Val, Hameer

ship 0.52
- 3 notebooks, take a look!
- https://github.com/numba/numba-examples/pull/27
- https://github.com/numba/numba-examples/pull/26
- https://github.com/numba/numba-examples/pull/25
open meeting next week, topics!?
- Siu will announce today asking for topics.
- Jim(awkward), Luk suggest a way to re-use Numba typing/codegen for a different array implementation
- Maybe related to https://github.com/numba/numba/pull/6148
- Todd asks if anyone is doing Sparse array in Numba
- Stuart has a local experiment on sparse arrays.
- Hameer has some experience. Higher dim sparse array is hard to impl in numba; i.e. iterators.
set up numba-extras repo
- use GH actions
  - automate pypi/conda publishing
- pytest
- maybe black
  - Hameer suggests we pin black version to avoid churn
- type annotation would need discussion (community to implement setup etc)
python 3.9
- more bytecode changes than we thought (late doc update)
- Stuart writing a peephole opt to compress bytecode instructions 😨
- more likely to be 0.53 with so much changes
Code owner review ping #6502
JAX-numba bridge https://numba.discourse.group/t/calling-numba-from-jax/372

#6526 - Wrong results using Numba and astype() compared to pure Numpy
- impl needs fixing
#6523 - typed.List.extend returns self in some cases
- impl needs fixing, PR at #6524
#6522 - Caching a function that takes in a jitclass instance
- known jitclass problem
#6520 - typeguard fail for numba.tests.test_jitclasses.TestJitClass
#6518 - LiteralStrKeyDict error for non-identifier key names