Owner

numpy

11 indexed repositories · View on GitHub

numpy
The fundamental package for scientific computing with Python.

Python · 32784 stars
x86-simd-sort
C++ template library for high performance SIMD based sorting algorithms

C++ · 1027 stars
numpy-tutorials
NumPy tutorials & educational content in notebook format

673 stars
numpy-financial
Standalone package of the NumPy financial functions

Python · 409 stars
numpydoc
Numpy's Sphinx extensions

Python · 355 stars
numpy.org
The NumPy home page

Shell · 128 stars
numtype
Experimental Typing Stubs for NumPy

Python · 79 stars
numpy-quaddtype
A cross-platform Quad (128-bit) float Data-Type for NumPy.

Python · 24 stars
archive
Archive of documents related to the project governance and management

Jupyter Notebook · 15 stars
numpy-simd-routines
SIMD math routines used in NumPy

C++ · 10 stars
numpy-release
Repository for building numpy release artifacts and making releases to PyPI

Shell · 4 stars

Beginner friendly Everything

Open All

argsort: the `is_sorted` early exit calls its comparator through a function pointer when `descending` is a runtime value Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

numpy/x86-simd-sort#240 · Opened Sep 19, 2026
BUG: `from_dlpack` runs the capsule destructor with a pending exception → spurious `SystemError` and skipped producer deleter Open

00 - Bug

Difficulty 3/5 1-2 days Newbie friendliness 76/100

numpy/numpy#32697 · 1 comment · Opened Sep 19, 2026
BUG: np.einsum returns wrong results or a segfault, no error when a new style dtypes. Open

00 - Bug

Difficulty 4/5 3-5 days Newbie friendliness 55/100

numpy/numpy#32671 · 6 comments · 1 reaction · Opened Sep 17, 2026
ENH: fft: switch from `pocketfft` to `ducc0.fft` Open

01 - Enhancement triage review

Difficulty 5/5 Over a week Newbie friendliness 30/100

numpy/numpy#32605 · 4 comments · Opened Sep 14, 2026
ENH: sinpi, cospi, asinpi, acospi, etc.: trigonometric functions in units of half turns Open

01 - Enhancement triage review

Difficulty 5/5 Over a week Newbie friendliness 35/100

numpy/numpy#32603 · 3 comments · Opened Sep 13, 2026
ENH: histogram_bin_edges: add an equal-frequency (quantile) binning strategy Open

01 - Enhancement triage review

Difficulty 5/5 Over a week Newbie friendliness 35/100

numpy/numpy#32599 · 3 comments · Opened Sep 12, 2026
Add new case studies highlighting contributions to recent scientific discoveries Open

sustain-2026

Difficulty 5/5 Over a week Newbie friendliness 35/100

numpy/numpy.org#913 · 2 comments · Opened Sep 12, 2026
Transition `PyArray_PythonPyIntFromInt` to modern behavior Open

00 - Bug 07 - Deprecation sustain-2026

Difficulty 4/5 3-5 days Newbie friendliness 48/100

numpy/numpy#32590 · 3 comments · Opened Sep 11, 2026
Build provenance of GCC runtime libraries in NumPy 2.5.2 macOS arm64 wheel Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

numpy/numpy-release#65 · 2 comments · Opened Sep 9, 2026
BUG: incorrect floored division of negative timedeltas Open

00 - Bug

Difficulty 3/5 1-2 days Newbie friendliness 58/100

numpy/numpy#32522 · 2 comments · 1 reaction · Opened Sep 6, 2026
BUG: SIGSEGV when creating an array from a deeply nested structured dtype Open

00 - Bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

numpy/numpy#32488 · 5 comments · Opened Sep 3, 2026
BUG: npy_math.h complex accessors call UCRT creal/cimag, but npy_cdouble is C99 _Complex for icx on Windows Open

00 - Bug

Difficulty 3/5 1-2 days Newbie friendliness 72/100

numpy/numpy#32482 · 2 comments · Opened Sep 2, 2026
PERF: avoid temporary boolean array in np.array_equal for contiguous integer arrays Open

01 - Enhancement triage review

Difficulty 4/5 3-5 days Newbie friendliness 52/100

numpy/numpy#32465 · 6 comments · Opened Aug 31, 2026
TST: test_unary_spurious_fpexception fails comprehensively on riscv Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

numpy/numpy#32461 · 2 comments · Opened Aug 30, 2026
PERF: F->C order conversion thrashes the L3 cache Open

00 - Bug triage review

Difficulty 4/5 3-5 days Newbie friendliness 48/100

numpy/numpy#32453 · 6 comments · Opened Aug 27, 2026
Tracking Issue: Support for CPython subinterpreters in NumPy Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

numpy/numpy#32451 · 2 reactions · Opened Aug 27, 2026
ENH: nanminmax follow-up design - new function vs nan_policy kwarg on np.minmax Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

numpy/numpy#32439 · Opened Aug 26, 2026
BUG: StringDType loses trailing NULs from `str` scalars in Python wrappers Open

00 - Bug component: numpy.strings

Difficulty 4/5 3-5 days Newbie friendliness 48/100

numpy/numpy#32431 · 1 comment · Opened Aug 25, 2026
check_cpu_feature_support makes repeated/unnecessary calls to std::getenv("XSS_DISABLE_AVX512") Open

Difficulty 1/5 Under an hour Newbie friendliness 84/100

numpy/x86-simd-sort#239 · 1 comment · Opened Aug 24, 2026
BUG: `np.trim_zeros` raises `TypeError` for multi-dimensional sequences Open

00 - Bug

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

numpy/numpy#32394 · 2 comments · Opened Aug 23, 2026
BUG: Failing `test_unary_spurious_fpexception` and `test_floor_division_errors` tests on RISC-V Open

00 - Bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

numpy/numpy#32376 · 4 comments · Opened Aug 21, 2026
BUG: `numpy.linalg.norm` overflows for intermediate values due to naive sum-of-squares implementation Open

00 - Bug

Difficulty 4/5 3-5 days Newbie friendliness 65/100

numpy/numpy#32372 · 3 comments · Opened Aug 20, 2026
BUG: f2py: MODULE statement is not detected as a group opener, but detected as a group closer, leading to mismatches in group counters. Open

00 - Bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

numpy/numpy#32360 · 1 comment · Opened Aug 20, 2026
ENH: polyroots special cases for degree 2 and 3 Open

01 - Enhancement

Difficulty 4/5 3-5 days Newbie friendliness 45/100

numpy/numpy#32309 · 12 comments · Opened Aug 16, 2026
ENH: use existing non-contiguous SIMD path for integer np.minimum/np.maximum (currently float-only) Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

numpy/numpy#32307 · 10 comments · Opened Aug 16, 2026
DOC: Output of `RandomState.multinomial()` changed in v2.5.0 Open

04 - Documentation

Difficulty 4/5 3-5 days Newbie friendliness 48/100

numpy/numpy#32299 · 9 comments · Opened Aug 15, 2026
BUG: unpickled arrays anti-scale on free-threaded builds — `dtype.__reduce__` discards the immortal singleton Open

00 - Bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

numpy/numpy#32298 · 2 comments · Opened Aug 14, 2026
TST: [Tracking] Improving code coverage (Python) Open

sustain-2026

Difficulty 5/5 Over a week Newbie friendliness 35/100

numpy/numpy#32275 · 5 comments · 1 reaction · Opened Aug 13, 2026
DOC: `.npz` zip container is unspecified Open

04 - Documentation sustain-2026

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

numpy/numpy#32272 · 6 comments · Opened Aug 12, 2026
BUG: Platform dependent test failures of `tanh`, `atanh` and `sqrt` function. Open

00 - Bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

numpy/numpy#32234 · 6 comments · 1 reaction · Opened Aug 9, 2026
BUG: Integer overflow in stride × step/index multiplication causes segfault during array indexing Open

00 - Bug sustain-2026

Difficulty 4/5 3-5 days Newbie friendliness 48/100

numpy/numpy#32219 · 1 comment · Opened Aug 7, 2026
BUG: np.quantile / ndarray.partition become much slower than a full sort once `kth` density crosses ~50% Open

00 - Bug

Difficulty 4/5 3-5 days Newbie friendliness 55/100

numpy/numpy#32187 · 3 comments · Opened Aug 4, 2026
Remove np.matrix keepdims workaround in nanvar/nanstd (behaviour change) Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

numpy/numpy#32170 · 1 comment · Opened Aug 2, 2026
PERF: np.isin is very slow for StringDType Open

01 - Enhancement component: numpy.strings

Difficulty 3/5 1-2 days Newbie friendliness 52/100

numpy/numpy#32161 · Opened Jul 31, 2026
PERF: `-ftrapping-math` slows down `np.less` `float32` loops on Apple AArch64 Open

00 - Bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

numpy/numpy#32159 · 4 comments · Opened Jul 31, 2026
BUG: Compiling fortran programme using f2py and flang leads to poorly behaving `parameter`s Open

00 - Bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

numpy/numpy#32148 · 4 comments · Opened Jul 30, 2026
PERF: np.sin(a, where=) is slower than computing the whole array Open

00 - Bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

numpy/numpy#32136 · 3 comments · Opened Jul 28, 2026
ENH: support `where=` in MaskedArray reductions Open

01 - Enhancement

Difficulty 4/5 3-5 days Newbie friendliness 58/100

numpy/numpy#32126 · 3 comments · Opened Jul 28, 2026
TYP: Type mismatch of `np.indices` converted to list, real type is `list[list[int]]`, reported type is `list[int]` Open

41 - Static typing

Difficulty 3/5 1-2 days Newbie friendliness 52/100

numpy/numpy#32109 · 9 comments · Opened Jul 26, 2026
BUG: mixed-backend ufuncs use inconsistent common-backend policies Open

bug

numpy/numpy-quaddtype#113 · 1 comment · 1 assignee · Opened Jul 25, 2026
BUG: inter-backend casts lose precision by converting through double Open

bug

numpy/numpy-quaddtype#112 · 1 assignee · Opened Jul 25, 2026
BUG: numpy int64/float64 comparisons are inexact Open

00 - Bug

Difficulty 4/5 3-5 days Newbie friendliness 42/100

numpy/numpy#32071 · 7 comments · Opened Jul 23, 2026
BUG: `SeedSequence.spawn` and `np.random.set_bit_generator` are not thread-safe Open

00 - Bug 39 - free-threading component: numpy.random

Difficulty 5/5 Over a week Newbie friendliness 35/100

numpy/numpy#32063 · 5 comments · Opened Jul 22, 2026
BUG: Variance inflation in random_poisson (and dependent samplers) for large lam (≳1e15) due to float64 rounding Open

00 - Bug component: numpy.random

Difficulty 4/5 3-5 days Newbie friendliness 48/100

numpy/numpy#31986 · 5 comments · Opened Jul 13, 2026
BUG: object dtype argmax/argmin swallows comparison errors and keeps writing to out Open

00 - Bug

Difficulty 3/5 1-2 days Newbie friendliness 72/100

numpy/numpy#31977 · 7 comments · Opened Jul 12, 2026
PERF: `np.unique` has massive performance regression for large numeric arrays due to `_unique_hash` Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

numpy/numpy#31969 · 7 comments · 1 reaction · Opened Jul 11, 2026
BUG: f2py reparses tokenized argv entries containing spaces Open

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

numpy/numpy#31958 · 1 comment · Opened Jul 11, 2026
SubTracker: Move static variables into a struct and access them via PyModule_GetState. Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

numpy/numpy#31930 · 10 comments · Opened Jul 9, 2026
BUG: Signed integer overflow in datetime.c - comprehensive fix needed for all arithmetic operations Open

00 - Bug sustain-2026

Difficulty 5/5 Over a week Newbie friendliness 42/100

numpy/numpy#31926 · 1 comment · Opened Jul 9, 2026
Tracking Issue: Adoption of CPython limited API Open

63 - C API component: distribution

Difficulty 5/5 Over a week Newbie friendliness 30/100

numpy/numpy#31913 · 5 comments · 1 reaction · Opened Jul 8, 2026

Showing the newest 100

This page lists what was indexed most recently. Advanced filter has the whole inventory, narrowed by language, difficulty and how long a task takes.

Open advanced filter

numpy

Showing the newest 100

Get new issues in your inbox