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| 1 | +--- |
| 2 | +tags: NumPy |
| 3 | +--- |
| 4 | + |
| 5 | +# 2019-09-11 NumPy Development Meeting |
| 6 | + |
| 7 | +- Time: 11am Pacific Time |
| 8 | +- Join via Zoom at https://berkeley.zoom.us/j/762261535 |
| 9 | +- [Trello workboard](https://trello.com/b/Azg4fYZH/numpy-at-bids) |
| 10 | +- [Previous meetings](https://github.com/BIDS-numpy/docs/tree/master/status_meetings) |
| 11 | + |
| 12 | +**Present:** ZJ, Tyler, Warren, Chuck, Hameer, Ralf, Matti, Sebastian, Inessa, Stéfan |
| 13 | + |
| 14 | +## Follow-up from last meeting / discussions |
| 15 | + |
| 16 | +- Ralf opened [PR 14454](https://github.com/numpy/numpy/pull/14454) to document the public API. Do we need to discuss it? |
| 17 | + - Polynomial namespace, multiple ways of calling the poly functions; Eric Wieser has a [suggestion](https://github.com/numpy/numpy/pull/13601#issuecomment-525591808) on how to fix |
| 18 | + - TODO Follow up on surveying new public API surface in `np.random` (Matti will try and clean that up) |
| 19 | + |
| 20 | +# Topics |
| 21 | + |
| 22 | +- NEP repo updates github.com/numpy/neps do not reflect to https://numpy.org/neps |
| 23 | + - Github deploy is not triggered (reliably?) for some reason |
| 24 | + - Sebastian asked support for help |
| 25 | +- In discussing build warnings, @rgommers raised the following ideas: |
| 26 | + - hide the _configtest output by default. we regularly get issues about those where people see lots of errors and for example hit Ctrl-C |
| 27 | + - add a `--debug-config` option to show this output? |
| 28 | + - introduce a CI run that's clean with the latest GCC. we have a `-Werror` build somewhere, but only with old GCC (existing build matrix entry could be updated) |
| 29 | + - introduce a CI run that's clean on macOS with Clang (lots of warnings right now) |
| 30 | + - clang on linux too? |
| 31 | +- Hypothesis in testing. The mailing list discussion was very short. [PR 14440](https://github.com/numpy/numpy/pull/14440) is an example for discussion |
| 32 | + - Ask for some more examples, especially around bytestrings/unicode, pickling. Don't pin the version. |
| 33 | +- [NEP 32](https://numpy.org/neps/nep-0032-remove-financial-functions.html): So far, there have been only a few responses to the announcements on the numpy-discussion and pydata mailing lists. |
| 34 | + - Well before the release of 1.18 we will have a numpy-financial package on PyPI and deprecation stubs in numpy. |
| 35 | +- NEP 31 |
| 36 | + - Add `determine_backend`: |
| 37 | + - Few choices: `__ua_domain__` or making `__ua_convert__` mandatory. |
| 38 | + - Any additional comments? |
| 39 | + - The general feeling is that we need to get the correct people on a high-bandwidth discussion. Perhaps at the Nov 22-23 meeting? |
| 40 | +- Social media channels - reserving for now? |
| 41 | + - Maybe trademark the NumPy name? |
| 42 | +- Website redesign update |
| 43 | + - Ralf, Inessa showed off the new site. |
| 44 | +- Logo refresh is going on [numpy.org PR 36](https://github.com/numpy/numpy.org/issues/37) |
| 45 | + |
| 46 | + |
| 47 | +## Additional Details |
| 48 | + |
| 49 | +- Matti |
| 50 | + - Participated in EuroSciPy. It was nice to meet up with folks. A number of people sprinted, among them we got a PR to use hypothesis in our testing. |
| 51 | + - Pushed some small changes to Cython, trying to help them get 3.0 out. Also a small fix for the `@property` decorator in numpy.pxd in SciPy. |
| 52 | + - Adding a new dtype via (ab)use of the object dtype for geodata in pandas |
| 53 | + |
| 54 | +- Sebastian |
| 55 | + - [Extensible Datatypes for NumPy](https://hackmd.io/kxuh15QGSjueEKft5SaMug) Matti had some feedback/clarifications. |
| 56 | + - Started (prototyping): https://github.com/seberg/numpy/pull/6 |
| 57 | + - Start on `PyArray_InitDTypeMetaFromSpec(...)` |
| 58 | + - Not quite there yet for AbstractDType for value based casting, but next step. |
| 59 | + |
| 60 | +- Warren |
| 61 | + - Repo for my experiments with custom dtypes using the current API is https://github.com/WarrenWeckesser/numtypes |
| 62 | + - Spent time on this issue in numpy.random: |
| 63 | + - Bug report: https://github.com/numpy/numpy/issues/14457 |
| 64 | + - Initial fix by ahaldane: https://github.com/numpy/numpy/pull/14458 |
| 65 | + - My follow-up PR: https://github.com/numpy/numpy/pull/14465 |
| 66 | + |
| 67 | + |
| 68 | +--- |
| 69 | + |
| 70 | +Please remember to archive this file and commit it to github.com:bids-numpy/docs |
| 71 | + |
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