Minutes_2019_07_02

Attendees: Todd, Stuart, Val, Stan, Siu

0. Feature Discussion

• What open PRs need to go into 0.45 RC (next week!)
• Related to #4223. Should we have a new decorator?
  • User survey

1. New issues

• #4260 - numba.errors.LoweringError: Failed in object mode pipeline (step: object mode frontend)

  • With known fixes

• #4259 - A sum module for collections of summation algorithms

  • TODOs from last meeting

• #4258 - refactor common code in reduce-like numpy methods

  • TODOs from last meeting

• #4257 - Make it more clear what numba features can and can't be used in compiled code

  • Docs

• #4256 - numba compatibility with Ray

• #4255 - cannot determine Numba type of <class 'numba.dispatcher.LiftedLoop'>

  • With known fixes

• **** #4251 - Potential regression in _analyze_op_call_numpy_reshape

• #4250 - Using .pop(0) on a list and then appending new elements crashes when called repeatedly

• #4248 - Numpy aggregate function shims and np.sort()

• ======

• #4247 - Dead Kernel WSL Debian on np.arctan()

  • stan volunteered to check

• #4246 - storage variables inside functions do not work in nopython mode

  • known limitation

• #4245 - optional argument support for supported numpy functions, at the very least axis

• #4244 - Type inference error for dict when using default value

• #4243 - Numba Strange error while using nopython mode

  • spinoff issue with colorama on win32

• #4242 - Allow parsing dates of the form "1899-12-30" in a jit context

• #4238 - Failure in test_case16_scipy_call_in_objmode_ctx with SciPy 1.3.0

• #4236 - Error compiling umap

• #4235 - How can I vectorize the function

• **** #4231 - prange equivalent for iterable, zipped, etc

• #4230 - Allow length 1 array to be used in boolean context

• #4226 - UMAP running in R

• #4225 - Conditional numpy array slicing

• **** #4223 - Numba internal error during lowering

  • Discussion on objectmode deprecation
  • Maybe we should have a new decorator

Already Closed

• #4249 - max() Not working in Windows 10

2. Open PRs

• #4254 - Add reference counting to register_dispatcher
• #4253 - fix typo in pysupported docs
• #4252 - fix typo on repomap
• **** #4239 - Support len() of multi-dim arrays in array analysis
• #4234 - Raise informative error for np.kron array order
• #4233 - Fixes issue revealed by #4215
• #4229 - [WIP] Make hashing cacheable
• #4228 - Fix inplace operator error for arrays
  • need feedback
• #4224 - Fix #4223. Looplifting error due to StaticSetItem in objectmode

Already merged

• #4241 - remove unused import
• #4240 - fix typo in jitclass docs
• #4237 - Update doc links to point to latest not dev docs.
• #4232 - Add unicodetype db, low level str functions and examples.
• #4227 - Include numba version in reportable error message
• #4222 - Fix bad python path.

Old Active

4. Next Release: Version 0.45, RC=July 8, Final=July 12

• Type List
• Caching improvements requirement gathering
  • transitive dependency
  • bug related to storing runtime-only info
  • may punt on jitclasses
  • may punt on issues of (g)ufunc
  • future: pre-filled/package-able cache
    • open questions:
      • numba version pinning(?)
      • regen cache for different numba versions
      • regen at post-install