-
Notifications
You must be signed in to change notification settings - Fork 8
/
Copy pathnep-0046-sponsorship-guidelines.html
797 lines (613 loc) · 41.8 KB
/
nep-0046-sponsorship-guidelines.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
<!DOCTYPE html>
<html lang="en" data-content_root="./" >
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
<title>NEP 46 — NumPy sponsorship guidelines — NumPy Enhancement Proposals</title>
<script data-cfasync="false">
document.documentElement.dataset.mode = localStorage.getItem("mode") || "";
document.documentElement.dataset.theme = localStorage.getItem("theme") || "";
</script>
<!--
this give us a css class that will be invisible only if js is disabled
-->
<noscript>
<style>
.pst-js-only { display: none !important; }
</style>
</noscript>
<!-- Loaded before other Sphinx assets -->
<link href="_static/styles/theme.css?digest=8878045cc6db502f8baf" rel="stylesheet" />
<link href="_static/styles/pydata-sphinx-theme.css?digest=8878045cc6db502f8baf" rel="stylesheet" />
<link rel="stylesheet" type="text/css" href="_static/pygments.css?v=03e43079" />
<!-- So that users can add custom icons -->
<script src="_static/scripts/fontawesome.js?digest=8878045cc6db502f8baf"></script>
<!-- Pre-loaded scripts that we'll load fully later -->
<link rel="preload" as="script" href="_static/scripts/bootstrap.js?digest=8878045cc6db502f8baf" />
<link rel="preload" as="script" href="_static/scripts/pydata-sphinx-theme.js?digest=8878045cc6db502f8baf" />
<script src="_static/documentation_options.js?v=7f41d439"></script>
<script src="_static/doctools.js?v=888ff710"></script>
<script src="_static/sphinx_highlight.js?v=dc90522c"></script>
<script>DOCUMENTATION_OPTIONS.pagename = 'nep-0046-sponsorship-guidelines';</script>
<link rel="icon" href="_static/favicon.ico"/>
<link rel="index" title="Index" href="genindex.html" />
<link rel="search" title="Search" href="search.html" />
<link rel="next" title="NEP 48 — Spending NumPy project funds" href="nep-0048-spending-project-funds.html" />
<link rel="prev" title="NEP 45 — C style guide" href="nep-0045-c_style_guide.html" />
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<meta name="docsearch:language" content="en"/>
<meta name="docsearch:version" content="" />
<meta name="docbuild:last-update" content="Jan 31, 2025"/>
</head>
<body data-bs-spy="scroll" data-bs-target=".bd-toc-nav" data-offset="180" data-bs-root-margin="0px 0px -60%" data-default-mode="">
<div id="pst-skip-link" class="skip-link d-print-none"><a href="#main-content">Skip to main content</a></div>
<div id="pst-scroll-pixel-helper"></div>
<button type="button" class="btn rounded-pill" id="pst-back-to-top">
<i class="fa-solid fa-arrow-up"></i>Back to top</button>
<dialog id="pst-search-dialog">
<form class="bd-search d-flex align-items-center"
action="search.html"
method="get">
<i class="fa-solid fa-magnifying-glass"></i>
<input type="search"
class="form-control"
name="q"
placeholder="Search the docs ..."
aria-label="Search the docs ..."
autocomplete="off"
autocorrect="off"
autocapitalize="off"
spellcheck="false"/>
<span class="search-button__kbd-shortcut"><kbd class="kbd-shortcut__modifier">Ctrl</kbd>+<kbd>K</kbd></span>
</form>
</dialog>
<div class="pst-async-banner-revealer d-none">
<aside id="bd-header-version-warning" class="d-none d-print-none" aria-label="Version warning"></aside>
</div>
<header class="bd-header navbar navbar-expand-lg bd-navbar d-print-none">
<div class="bd-header__inner bd-page-width">
<button class="pst-navbar-icon sidebar-toggle primary-toggle" aria-label="Site navigation">
<span class="fa-solid fa-bars"></span>
</button>
<div class="col-lg-3 navbar-header-items__start">
<div class="navbar-item">
<a class="navbar-brand logo" href="content.html">
<img src="_static/numpylogo.svg" class="logo__image only-light" alt="NumPy Enhancement Proposals - Home"/>
<img src="_static/numpylogo_dark.svg" class="logo__image only-dark pst-js-only" alt="NumPy Enhancement Proposals - Home"/>
</a></div>
</div>
<div class="col-lg-9 navbar-header-items">
<div class="me-auto navbar-header-items__center">
<div class="navbar-item">
<nav>
<ul class="bd-navbar-elements navbar-nav">
<li class="nav-item current active">
<a class="nav-link nav-internal" href="index.html">
Index
</a>
</li>
<li class="nav-item ">
<a class="nav-link nav-internal" href="scope.html">
The Scope of NumPy
</a>
</li>
<li class="nav-item ">
<a class="nav-link nav-internal" href="roadmap.html">
Current roadmap
</a>
</li>
<li class="nav-item ">
<a class="nav-link nav-external" href="https://github.com/numpy/numpy/issues?q=is%3Aopen+is%3Aissue+label%3A%2223+-+Wish+List%22">
Wishlist
</a>
</li>
</ul>
</nav></div>
</div>
<div class="navbar-header-items__end">
<div class="navbar-item navbar-persistent--container">
<button class="btn search-button-field search-button__button pst-js-only" title="Search" aria-label="Search" data-bs-placement="bottom" data-bs-toggle="tooltip">
<i class="fa-solid fa-magnifying-glass"></i>
<span class="search-button__default-text">Search</span>
<span class="search-button__kbd-shortcut"><kbd class="kbd-shortcut__modifier">Ctrl</kbd>+<kbd class="kbd-shortcut__modifier">K</kbd></span>
</button>
</div>
<div class="navbar-item">
<button class="btn btn-sm nav-link pst-navbar-icon theme-switch-button pst-js-only" aria-label="Color mode" data-bs-title="Color mode" data-bs-placement="bottom" data-bs-toggle="tooltip">
<i class="theme-switch fa-solid fa-sun fa-lg" data-mode="light" title="Light"></i>
<i class="theme-switch fa-solid fa-moon fa-lg" data-mode="dark" title="Dark"></i>
<i class="theme-switch fa-solid fa-circle-half-stroke fa-lg" data-mode="auto" title="System Settings"></i>
</button></div>
<div class="navbar-item"><ul class="navbar-icon-links"
aria-label="Icon Links">
<li class="nav-item">
<a href="https://github.com/numpy/numpy" title="GitHub" class="nav-link pst-navbar-icon" rel="noopener" target="_blank" data-bs-toggle="tooltip" data-bs-placement="bottom"><i class="fa-brands fa-square-github fa-lg" aria-hidden="true"></i>
<span class="sr-only">GitHub</span></a>
</li>
</ul></div>
</div>
</div>
<div class="navbar-persistent--mobile">
<button class="btn search-button-field search-button__button pst-js-only" title="Search" aria-label="Search" data-bs-placement="bottom" data-bs-toggle="tooltip">
<i class="fa-solid fa-magnifying-glass"></i>
<span class="search-button__default-text">Search</span>
<span class="search-button__kbd-shortcut"><kbd class="kbd-shortcut__modifier">Ctrl</kbd>+<kbd class="kbd-shortcut__modifier">K</kbd></span>
</button>
</div>
<button class="pst-navbar-icon sidebar-toggle secondary-toggle" aria-label="On this page">
<span class="fa-solid fa-outdent"></span>
</button>
</div>
</header>
<div class="bd-container">
<div class="bd-container__inner bd-page-width">
<dialog id="pst-primary-sidebar-modal"></dialog>
<div id="pst-primary-sidebar" class="bd-sidebar-primary bd-sidebar">
<div class="sidebar-header-items sidebar-primary__section">
<div class="sidebar-header-items__center">
<div class="navbar-item">
<nav>
<ul class="bd-navbar-elements navbar-nav">
<li class="nav-item current active">
<a class="nav-link nav-internal" href="index.html">
Index
</a>
</li>
<li class="nav-item ">
<a class="nav-link nav-internal" href="scope.html">
The Scope of NumPy
</a>
</li>
<li class="nav-item ">
<a class="nav-link nav-internal" href="roadmap.html">
Current roadmap
</a>
</li>
<li class="nav-item ">
<a class="nav-link nav-external" href="https://github.com/numpy/numpy/issues?q=is%3Aopen+is%3Aissue+label%3A%2223+-+Wish+List%22">
Wishlist
</a>
</li>
</ul>
</nav></div>
</div>
<div class="sidebar-header-items__end">
<div class="navbar-item">
<button class="btn btn-sm nav-link pst-navbar-icon theme-switch-button pst-js-only" aria-label="Color mode" data-bs-title="Color mode" data-bs-placement="bottom" data-bs-toggle="tooltip">
<i class="theme-switch fa-solid fa-sun fa-lg" data-mode="light" title="Light"></i>
<i class="theme-switch fa-solid fa-moon fa-lg" data-mode="dark" title="Dark"></i>
<i class="theme-switch fa-solid fa-circle-half-stroke fa-lg" data-mode="auto" title="System Settings"></i>
</button></div>
<div class="navbar-item"><ul class="navbar-icon-links"
aria-label="Icon Links">
<li class="nav-item">
<a href="https://github.com/numpy/numpy" title="GitHub" class="nav-link pst-navbar-icon" rel="noopener" target="_blank" data-bs-toggle="tooltip" data-bs-placement="bottom"><i class="fa-brands fa-square-github fa-lg" aria-hidden="true"></i>
<span class="sr-only">GitHub</span></a>
</li>
</ul></div>
</div>
</div>
<div class="sidebar-primary-items__start sidebar-primary__section">
<div class="sidebar-primary-item">
<nav class="bd-docs-nav bd-links"
aria-label="Section Navigation">
<p class="bd-links__title" role="heading" aria-level="1">Section Navigation</p>
<div class="bd-toc-item navbar-nav"><ul class="nav bd-sidenav">
<li class="toctree-l1"><a class="reference internal" href="scope.html">The Scope of NumPy</a></li>
<li class="toctree-l1"><a class="reference internal" href="roadmap.html">Current roadmap</a></li>
</ul>
<ul class="current nav bd-sidenav">
<li class="toctree-l1 current active has-children"><a class="reference internal" href="meta.html">Meta-NEPs (NEPs about NEPs or active Processes)</a><details open="open"><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul class="current">
<li class="toctree-l2"><a class="reference internal" href="nep-0000.html">NEP 0 — Purpose and process</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0023-backwards-compatibility.html">NEP 23 — Backwards compatibility and deprecation policy</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0036-fair-play.html">NEP 36 — Fair play</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0045-c_style_guide.html">NEP 45 — C style guide</a></li>
<li class="toctree-l2 current active"><a class="current reference internal" href="#">NEP 46 — NumPy sponsorship guidelines</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0048-spending-project-funds.html">NEP 48 — Spending NumPy project funds</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-template.html">NEP X — Template and instructions</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="provisional.html">Provisional NEPs (provisionally accepted; interface may change)</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul class="simple">
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="accepted.html">Accepted NEPs (implementation in progress)</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="nep-0041-improved-dtype-support.html">NEP 41 — First step towards a new datatype system</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0042-new-dtypes.html">NEP 42 — New and extensible DTypes</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0044-restructuring-numpy-docs.html">NEP 44 — Restructuring the NumPy documentation</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0051-scalar-representation.html">NEP 51 — Changing the representation of NumPy scalars</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="open.html">Open NEPs (under consideration)</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="nep-0043-extensible-ufuncs.html">NEP 43 — Enhancing the extensibility of UFuncs</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0053-c-abi-evolution.html">NEP 53 — Evolving the NumPy C-API for NumPy 2.0</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0054-simd-cpp-highway.html">NEP 54 — SIMD infrastructure evolution: adopting Google Highway when moving to C++?</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="finished.html">Finished NEPs</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="nep-0001-npy-format.html">NEP 1 — A simple file format for NumPy arrays</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0005-generalized-ufuncs.html">NEP 5 — Generalized universal functions</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0007-datetime-proposal.html">NEP 7 — A proposal for implementing some date/time types in NumPy</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0010-new-iterator-ufunc.html">NEP 10 — Optimizing iterator/UFunc performance</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0013-ufunc-overrides.html">NEP 13 — A mechanism for overriding Ufuncs</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0014-dropping-python2.7-proposal.html">NEP 14 — Plan for dropping Python 2.7 support</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0015-merge-multiarray-umath.html">NEP 15 — Merging multiarray and umath</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0018-array-function-protocol.html">NEP 18 — A dispatch mechanism for NumPy's high level array functions</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0019-rng-policy.html">NEP 19 — Random number generator policy</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0020-gufunc-signature-enhancement.html">NEP 20 — Expansion of generalized universal function signatures</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0022-ndarray-duck-typing-overview.html">NEP 22 — Duck typing for NumPy arrays – high level overview</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0027-zero-rank-arrarys.html">NEP 27 — Zero rank arrays</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0028-website-redesign.html">NEP 28 — numpy.org website redesign</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0029-deprecation_policy.html">NEP 29 — Recommend Python and NumPy version support as a community policy standard</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0032-remove-financial-functions.html">NEP 32 — Remove the financial functions from NumPy</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0034-infer-dtype-is-object.html">NEP 34 — Disallow inferring ``dtype=object`` from sequences</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0035-array-creation-dispatch-with-array-function.html">NEP 35 — Array creation dispatching with __array_function__</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0038-SIMD-optimizations.html">NEP 38 — Using SIMD optimization instructions for performance</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0040-legacy-datatype-impl.html">NEP 40 — Legacy datatype implementation in NumPy</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0049.html">NEP 49 — Data allocation strategies</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0050-scalar-promotion.html">NEP 50 — Promotion rules for Python scalars</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0052-python-api-cleanup.html">NEP 52 — Python API cleanup for NumPy 2.0</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0055-string_dtype.html">NEP 55 — Add a UTF-8 variable-width string DType to NumPy</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0056-array-api-main-namespace.html">NEP 56 — Array API standard support in NumPy's main namespace</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="deferred.html">Deferred and Superseded NEPs</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="nep-0002-warnfix.html">NEP 2 — A proposal to build numpy without warning with a big set of warning flags</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0003-math_config_clean.html">NEP 3 — Cleaning the math configuration of numpy.core</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0004-datetime-proposal3.html">NEP 4 — A (third) proposal for implementing some date/time types in NumPy</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0006-newbugtracker.html">NEP 6 — Replacing Trac with a different bug tracker</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0008-groupby_additions.html">NEP 8 — A proposal for adding groupby functionality to NumPy</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0009-structured_array_extensions.html">NEP 9 — Structured array extensions</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0011-deferred-ufunc-evaluation.html">NEP 11 — Deferred UFunc evaluation</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0012-missing-data.html">NEP 12 — Missing data functionality in NumPy</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0021-advanced-indexing.html">NEP 21 — Simplified and explicit advanced indexing</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0024-missing-data-2.html">NEP 24 — Missing data functionality - alternative 1 to NEP 12</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0025-missing-data-3.html">NEP 25 — NA support via special dtypes</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0026-missing-data-summary.html">NEP 26 — Summary of missing data NEPs and discussion</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0030-duck-array-protocol.html">NEP 30 — Duck typing for NumPy arrays - implementation</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0031-uarray.html">NEP 31 — Context-local and global overrides of the NumPy API</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0037-array-module.html">NEP 37 — A dispatch protocol for NumPy-like modules</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0047-array-api-standard.html">NEP 47 — Adopting the array API standard</a></li>
</ul>
</details></li>
<li class="toctree-l1 has-children"><a class="reference internal" href="rejected.html">Rejected and Withdrawn NEPs</a><details><summary><span class="toctree-toggle" role="presentation"><i class="fa-solid fa-chevron-down"></i></span></summary><ul>
<li class="toctree-l2"><a class="reference internal" href="nep-0016-abstract-array.html">NEP 16 — An abstract base class for identifying "duck arrays"</a></li>
<li class="toctree-l2"><a class="reference internal" href="nep-0017-split-out-maskedarray.html">NEP 17 — Split out masked arrays</a></li>
</ul>
</details></li>
</ul>
</div>
</nav></div>
</div>
<div class="sidebar-primary-items__end sidebar-primary__section">
<div class="sidebar-primary-item">
<div id="ethical-ad-placement"
class="flat"
data-ea-publisher="readthedocs"
data-ea-type="readthedocs-sidebar"
data-ea-manual="true">
</div></div>
</div>
</div>
<main id="main-content" class="bd-main" role="main">
<div class="bd-content">
<div class="bd-article-container">
<div class="bd-header-article d-print-none">
<div class="header-article-items header-article__inner">
<div class="header-article-items__start">
<div class="header-article-item">
<nav aria-label="Breadcrumb" class="d-print-none">
<ul class="bd-breadcrumbs">
<li class="breadcrumb-item breadcrumb-home">
<a href="content.html" class="nav-link" aria-label="Home">
<i class="fa-solid fa-home"></i>
</a>
</li>
<li class="breadcrumb-item"><a href="index.html" class="nav-link">Roadmap & NumPy enhancement proposals</a></li>
<li class="breadcrumb-item"><a href="meta.html" class="nav-link">Meta-NEPs (NEPs about NEPs or active Processes)</a></li>
<li class="breadcrumb-item active" aria-current="page"><span class="ellipsis">NEP 46 — NumPy sponsorship guidelines</span></li>
</ul>
</nav>
</div>
</div>
</div>
</div>
<div id="searchbox"></div>
<article class="bd-article">
<section id="nep-46-numpy-sponsorship-guidelines">
<span id="nep46"></span><h1>NEP 46 — NumPy sponsorship guidelines<a class="headerlink" href="#nep-46-numpy-sponsorship-guidelines" title="Link to this heading">#</a></h1>
<dl class="field-list simple">
<dt class="field-odd">Author<span class="colon">:</span></dt>
<dd class="field-odd"><p>Ralf Gommers <<a class="reference external" href="mailto:ralf.gommers%40gmail.com">ralf<span>.</span>gommers<span>@</span>gmail<span>.</span>com</a>></p>
</dd>
<dt class="field-even">Status<span class="colon">:</span></dt>
<dd class="field-even"><p>Active</p>
</dd>
<dt class="field-odd">Type<span class="colon">:</span></dt>
<dd class="field-odd"><p>Process</p>
</dd>
<dt class="field-even">Created<span class="colon">:</span></dt>
<dd class="field-even"><p>2020-12-27</p>
</dd>
<dt class="field-odd">Resolution<span class="colon">:</span></dt>
<dd class="field-odd"><p><a class="reference external" href="https://mail.python.org/pipermail/numpy-discussion/2021-January/081424.html">https://mail.python.org/pipermail/numpy-discussion/2021-January/081424.html</a></p>
</dd>
</dl>
<section id="abstract">
<h2>Abstract<a class="headerlink" href="#abstract" title="Link to this heading">#</a></h2>
<p>This NEP provides guidelines on how the NumPy project will acknowledge
financial and in-kind support.</p>
</section>
<section id="motivation-and-scope">
<h2>Motivation and scope<a class="headerlink" href="#motivation-and-scope" title="Link to this heading">#</a></h2>
<p>In the past few years, the NumPy project has gotten significant financial
support, as well as dedicated work time for maintainers to work on NumPy. There
is a need to acknowledge that support - it’s the right thing to do, it’s
helpful when looking for new funding, and funders and organizations expect or
require it, Furthermore, having a clear policy for how NumPy acknowledges
support is helpful when searching for new support. Finally, this policy may
help set reasonable expectations for potential funders.</p>
<p>This NEP is aimed at both the NumPy community - who can use it as a guideline
when looking for support on behalf of the project and when acknowledging
existing support - and at past, current and prospective sponsors, who often
want or need to know what they get in return for their support other than a
healthier NumPy.</p>
<p>The scope of this proposal includes:</p>
<ul class="simple">
<li><p>direct financial support, employers providing paid time for NumPy maintainers
and regular contributors, and in-kind support such as free hardware resources or
services,</p></li>
<li><p>where and how NumPy acknowledges support (e.g., logo placement on the website),</p></li>
<li><p>the amount and duration of support which leads to acknowledgement, and</p></li>
<li><p>who in the NumPy project is responsible for sponsorship related topics, and
how to contact them.</p></li>
</ul>
</section>
<section id="how-numpy-will-acknowledge-support">
<h2>How NumPy will acknowledge support<a class="headerlink" href="#how-numpy-will-acknowledge-support" title="Link to this heading">#</a></h2>
<p>There will be two different ways to acknowledge financial and in-kind support:
one to recognize significant active support, and another one to recognize
support received in the past and smaller amounts of support.</p>
<p>Entities who fall under “significant active supporter” we’ll call Sponsor.
The minimum level of support given to NumPy to be considered a Sponsor are:</p>
<ul class="simple">
<li><p>$30,000/yr for unrestricted financial contributions (e.g., donations)</p></li>
<li><p>$60,000/yr for financial contributions for a particular purpose (e.g., grants)</p></li>
<li><p>$100,000/yr for in-kind contributions (e.g., time for employees to contribute)</p></li>
</ul>
<p>We define support being active as:</p>
<ul class="simple">
<li><p>for a one-off donation: it was received within the previous 12 months,</p></li>
<li><p>for recurring or financial or in-kind contributions: they should be ongoing.</p></li>
</ul>
<p>After support moves from “active” to “inactive” status, the acknowledgement
will be left in its place for at least another 6 months. If appropriate, the
funding team can discuss opportunities for renewal with the sponsor. After
those 6 months, acknowledgement may be moved to the historical overview. The
exact timing of this move is at the discretion of the funding team, because
there may be reasons to keep it in the more prominent place for longer.</p>
<p>The rationale for the above funding levels is that unrestricted financial
contributions are typically the most valuable for the project, and the hardest
to obtain. The opposite is true for in-kind contributions. The dollar value of
the levels also reflect that NumPy’s needs have grown to the point where we
need multiple paid developers in order to effectively support our user base and
continue to move the project forward. Financial support at or above these
levels is needed to be able to make a significant difference.</p>
<p>Sponsors will get acknowledged through:</p>
<ul class="simple">
<li><p>a small logo displayed on the front page of the NumPy website</p></li>
<li><p>prominent logo placement on <a class="reference external" href="https://numpy.org/about/">https://numpy.org/about/</a></p></li>
<li><p>logos displayed in talks about NumPy by maintainers</p></li>
<li><p>announcements of the sponsorship on the NumPy mailing list</p></li>
</ul>
<p>In addition to Sponsors, we already have the concept of Institutional Partner
(defined in NumPy’s
<a class="reference external" href="https://numpy.org/devdocs/dev/governance/index.html">governance document</a>),
for entities who employ a NumPy maintainer and let them work on NumPy as part
of their official duties. The governance document doesn’t currently define a
minimum amount of paid maintainer time needed to be considered for partnership.
Therefore we propose that level here, roughly in line with the sponsorship
levels:</p>
<ul class="simple">
<li><p>6 person-months/yr of paid work time for one or more NumPy maintainers or
regular contributors to any NumPy team or activity</p></li>
</ul>
<p>Institutional Partners get the same benefits as Sponsors, in addition to what
is specified in the NumPy governance document.</p>
<p>Finally, a new page on the website (<a class="reference external" href="https://numpy.org/funding/">https://numpy.org/funding/</a>, linked from the
About page) will be added to acknowledge all current and previous sponsors,
partners, and any other entities and individuals who provided $5,000 or more of
financial or in-kind support. This page will include relevant details of
support (dates, amounts, names, and purpose); no logos will be used on this
page. Such support, if provided for a specific enhancements or fix, may be
acknowledged in the appropriate release note snippet. The rationale for the
$5,000 minimum level is to keep the amount of work maintaining the page
reasonable; the level is the equivalent of, e.g., one GSoC or a person-week’s
worth of engineering time in a Western country, which seems like a reasonable
lower limit.</p>
</section>
<section id="implementation">
<h2>Implementation<a class="headerlink" href="#implementation" title="Link to this heading">#</a></h2>
<p>The following content changes need to be made:</p>
<ul class="simple">
<li><p>Add a section with small logos towards the bottom of the <a class="reference external" href="https://numpy.org/">numpy.org</a> website.</p></li>
<li><p>Create a full list of historical and current support and deploy it to
<a class="reference external" href="https://numpy.org/funding">https://numpy.org/funding</a>.</p></li>
<li><p>Update the NumPy governance document for changes to Institutional Partner
eligibility requirements and benefits.</p></li>
<li><p>Update <a class="reference external" href="https://numpy.org/about">https://numpy.org/about</a> with details on how to get in touch with the
NumPy project about sponsorship related matters (see next section).</p></li>
</ul>
<section id="numpy-funding-team">
<h3>NumPy Funding Team<a class="headerlink" href="#numpy-funding-team" title="Link to this heading">#</a></h3>
<p>At the moment NumPy has only one official body, the Steering Council, and no
good way to get in touch with either that body or any person or group
responsible for funding and sponsorship related matters. The way this is
typically done now is to somehow find the personal email of a maintainer, and
email them in private. There is a need to organize this more transparently - a
potential sponsor isn’t likely to inquire through the mailing list, nor is it
easy for a potential sponsor to know if they’re reaching out to the right
person in private.</p>
<p><a class="reference external" href="https://numpy.org/about/">https://numpy.org/about/</a> already says that NumPy has a “funding and grants”
team. However that is not the case. We propose to organize this team, name team
members on it, and add the names of those team members plus a dedicated email
address for the team to the About page.</p>
</section>
</section>
<section id="status-before-this-proposal">
<h2>Status before this proposal<a class="headerlink" href="#status-before-this-proposal" title="Link to this heading">#</a></h2>
<section id="acknowledgement-of-support">
<h3>Acknowledgement of support<a class="headerlink" href="#acknowledgement-of-support" title="Link to this heading">#</a></h3>
<p>At the time of writing (Dec 2020), the logos of the four largest financial
sponsors and two institutional partners are displayed on
<a class="reference external" href="https://numpy.org/about/">https://numpy.org/about/</a>. The <a class="reference external" href="https://www.nature.com/articles/s41586-020-2649-2">Nature paper about NumPy</a>
mentions some early funding. No comprehensive list of received funding and
in-kind support is published anywhere.</p>
<p>Decisions on which logos to list on the website have been made mostly by the
website team. Decisions on which entities to recognize as Institutional Partner
have been made by the NumPy Steering Council.</p>
</section>
<section id="numpy-governance-decision-making-and-financial-oversight">
<h3>NumPy governance, decision-making, and financial oversight<a class="headerlink" href="#numpy-governance-decision-making-and-financial-oversight" title="Link to this heading">#</a></h3>
<p><em>This section is meant as context for the reader, to help put the rest of this
NEP in perspective, and perhaps answer questions the reader has when reading
this as a potential sponsor.</em></p>
<p>NumPy has a formal governance structure defined in
<a class="reference external" href="https://numpy.org/devdocs/dev/governance/index.html">this governance document</a>).
Decisions are made by consensus among all active participants in a discussion
(typically on the mailing list), and if consensus cannot be reached then the
Steering Council takes the decision (also by consensus).</p>
<p>NumPy is a sponsored project of NumFOCUS, a US-based 501(c)3 nonprofit.
NumFOCUS administers NumPy funds, and ensures they are spent in accordance with
its mission and nonprofit status. In practice, NumPy has a NumFOCUS
subcommittee (with its members named in the NumPy governance document) who can
authorize financial transactions. Those transactions, for example paying a
contractor for a particular activity or deliverable, are decided on by the
NumPy Steering Council.</p>
</section>
</section>
<section id="alternatives">
<h2>Alternatives<a class="headerlink" href="#alternatives" title="Link to this heading">#</a></h2>
<p><em>Tiered sponsorship levels.</em> We considered using tiered sponsorship levels, and
rejected this alternative because it would be more complex, and not necessarily
communicate the right intent - the minimum levels are for us to determine how
to acknowledge support that we receive, not a commercial value proposition.
Entities typically will support NumPy because they rely on the project or want
to help advance it, and not to get brand awareness through logo placement.</p>
<p><em>Listing all donations</em>. Note that in the past we have received many smaller
donations, mostly from individuals through NumFOCUS. It would be great to list
all of those contributions, but given the way we receive information on those
donations right now, that would be quite labor-intensive. If we manage to move
to a more suitable platform, such as <a class="reference external" href="https://opencollective.com/">Open Collective</a>,
in the future, we should reconsider listing all individual donations.</p>
</section>
<section id="related-work">
<h2>Related work<a class="headerlink" href="#related-work" title="Link to this heading">#</a></h2>
<p>Here we provide a few examples of how other projects handle sponsorship
guidelines and acknowledgements.</p>
<p><em>Scikit-learn</em> has a narrow banner with logos at the bottom of
<a class="reference external" href="https://scikit-learn.org">https://scikit-learn.org</a>, and a list of present funding and past sponsors at
<a class="reference external" href="https://scikit-learn.org/stable/about.html#funding">https://scikit-learn.org/stable/about.html#funding</a>. Plus a separate section
“Infrastructure support” at the bottom of that same About page.</p>
<p><em>Jupyter</em> has logos of sponsors and institutional partners in two sections on
<a class="reference external" href="https://jupyter.org/about">https://jupyter.org/about</a>. Some subprojects have separate approaches, for
example sponsors are listed (by using the <a class="reference external" href="https://github.com/all-contributors/all-contributors">all-contributors</a> bot) in the README for
<a class="reference external" href="https://github.com/jupyterlab/jupyterlab-git">jupyterlab-git</a>.
For a discussion from Jan 2020 on that, see
<a class="reference external" href="https://discourse.jupyter.org/t/ideas-for-recognizing-developer-contributions-by-companies-institutes/3178">here</a>.</p>
<p><em>NumFOCUS</em> has a large banner with sponsor logos on its front page at
<a class="reference external" href="https://numfocus.org">https://numfocus.org</a>, and a full page with sponsors at different sponsorship
levels listed at <a class="reference external" href="https://numfocus.org/sponsors">https://numfocus.org/sponsors</a>. They also have a
<a class="reference external" href="https://numfocus.org/blog/introducing-our-newest-corporate-sponsorship-prospectus">Corporate Sponsorship Prospectus</a>,
which includes a lot of detail on both sponsorship levels and benefits, as well
as how that helps NumFOCUS-affiliated projects (including NumPy).</p>
</section>
<section id="discussion">
<h2>Discussion<a class="headerlink" href="#discussion" title="Link to this heading">#</a></h2>
<ul class="simple">
<li><p><a class="reference external" href="https://mail.python.org/pipermail/numpy-discussion/2020-December/081353.html">Mailing list thread discussing this NEP</a></p></li>
<li><p><a class="reference external" href="https://github.com/numpy/numpy/pull/18084">PR with review of the NEP draft</a></p></li>
</ul>
</section>
<section id="references-and-footnotes">
<h2>References and footnotes<a class="headerlink" href="#references-and-footnotes" title="Link to this heading">#</a></h2>
<ul class="simple">
<li><p><a class="reference external" href="https://github.com/numpy/archive/blob/main/content/inside_numpy_presentation_SciPy2019.pdf">Inside NumPy: preparing for the next decade</a> presentation at SciPy’19 discussing the impact of the first NumPy grant.</p></li>
<li><p><a class="reference external" href="https://github.com/numpy/numpy/issues/13393">Issue</a> and
<a class="reference external" href="https://mail.python.org/pipermail/numpy-discussion/2019-April/079371.html">email</a>
where IBM offered a $5,000 bounty for VSX SIMD support</p></li>
<li><p><a class="reference external" href="https://github.com/jupyterlab/jupyterlab/blob/master/CORPORATE.md">JupyterLab Corporate Engagement and Contribution Guide</a></p></li>
</ul>
</section>
<section id="copyright">
<h2>Copyright<a class="headerlink" href="#copyright" title="Link to this heading">#</a></h2>
<p>This document has been placed in the public domain.</p>
</section>
</section>
</article>
</div>
<dialog id="pst-secondary-sidebar-modal"></dialog>
<div id="pst-secondary-sidebar" class="bd-sidebar-secondary bd-toc"><div class="sidebar-secondary-items sidebar-secondary__inner">
<div class="sidebar-secondary-item">
<div
id="pst-page-navigation-heading-2"
class="page-toc tocsection onthispage">
<i class="fa-solid fa-list"></i> On this page
</div>
<nav class="bd-toc-nav page-toc" aria-labelledby="pst-page-navigation-heading-2">
<ul class="visible nav section-nav flex-column">
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#abstract">Abstract</a></li>
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#motivation-and-scope">Motivation and scope</a></li>
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#how-numpy-will-acknowledge-support">How NumPy will acknowledge support</a></li>
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#implementation">Implementation</a><ul class="nav section-nav flex-column">
<li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#numpy-funding-team">NumPy Funding Team</a></li>
</ul>
</li>
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#status-before-this-proposal">Status before this proposal</a><ul class="nav section-nav flex-column">
<li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#acknowledgement-of-support">Acknowledgement of support</a></li>
<li class="toc-h3 nav-item toc-entry"><a class="reference internal nav-link" href="#numpy-governance-decision-making-and-financial-oversight">NumPy governance, decision-making, and financial oversight</a></li>
</ul>
</li>
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#alternatives">Alternatives</a></li>
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#related-work">Related work</a></li>
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#discussion">Discussion</a></li>
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#references-and-footnotes">References and footnotes</a></li>
<li class="toc-h2 nav-item toc-entry"><a class="reference internal nav-link" href="#copyright">Copyright</a></li>
</ul>
</nav></div>
</div></div>
</div>
<footer class="bd-footer-content">
</footer>
</main>
</div>
</div>
<!-- Scripts loaded after <body> so the DOM is not blocked -->
<script defer src="_static/scripts/bootstrap.js?digest=8878045cc6db502f8baf"></script>
<script defer src="_static/scripts/pydata-sphinx-theme.js?digest=8878045cc6db502f8baf"></script>
<footer class="bd-footer">
<div class="bd-footer__inner bd-page-width">
<div class="footer-items__start">
<div class="footer-item">
<p class="copyright">
© Copyright 2017-2025, NumPy Developers.
<br/>
</p>
</div>
<div class="footer-item">
<p class="sphinx-version">
Created using <a href="https://www.sphinx-doc.org/">Sphinx</a> 7.2.6.
<br/>
</p>
</div>
</div>
<div class="footer-items__end">
<div class="footer-item">
<p class="theme-version">
<!-- # L10n: Setting the PST URL as an argument as this does not need to be localized -->
Built with the <a href="https://pydata-sphinx-theme.readthedocs.io/en/stable/index.html">PyData Sphinx Theme</a> 0.16.1.
</p></div>
</div>
</div>
</footer>
</body>
</html>