numba/numba

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NumPy aware dynamic Python compiler using LLVM

Stars: 11.2k
Forks: 1.3k
Open beginner issues: 0
Indexed issues: 1.7k
Avg merge: 3d 3h
Merged PRs (30d): 18

Dominant language: Python
License: BSD-2-Clause
Last GitHub push: Sep 11, 2026
Latest indexed: Sep 14, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue

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1663 open issues indexed

handle overlapping memory regions when slicing correctly Open

bug - incorrect behavior

numba/numba#230 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Generator comprehensions unsupported Open

feature_request

numba/numba#505 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
unary negative nonsensical in the unsigned domain Open

0 - Backlog bug

numba/numba#538 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Performance enhancement for iternext in object mode Open

0 - Backlog enhancement

numba/numba#576 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add function dependency/callgraph to Overloaded Open

enhancement

numba/numba#727 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Describe additional Numba types in documentation Open

doc easy Task

numba/numba#838 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Make it easier to write single precision code Open

enhancement

numba/numba#888 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
vectorize fails on datetime Open

Blocked awaiting long term feature feature_request numpy

numba/numba#917 · 18 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
CUDA doesn't warn the error if their launch configuration exceeds the capability of their device Open

CUDA good first issue Task

numba/numba#1055 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
@jit ignores signature for return type Open

feature_request

numba/numba#1087 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
DUFuncs are immortal Open

bug bug - memory leak

numba/numba#1160 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Cudasim should have an option to buffer output then print it ordered by thread ID after kernel execution Open

CUDA enhancement

numba/numba#1175 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support for generator delegation with `yield from` Open

feature_request

numba/numba#1194 · 1 comment · 3 reactions · 0 assignees · Indexed Sep 14, 2026
'DUFunc' object has no attribute '__name__' Open

enhancement

numba/numba#1222 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Allow nopython code to raise warnings Open

feature_request

numba/numba#1243 · 2 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Add example of using multiple GPUs to CUDA documentation Open

CUDA doc Task

numba/numba#1261 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support for axis arguments on reduction functions Open

feature_request

numba/numba#1269 · 33 comments · 94 reactions · 0 assignees · Indexed Sep 14, 2026
NoPython Generator Finalizer is never invoked Open

bug - memory leak

numba/numba#1278 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
`np.bool` vs `np.bool_` Open

feature_request

numba/numba#1311 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Record array not supported by dufunc Open

feature_request

numba/numba#1314 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Records, nestedarrays should use NRT Open

feature_request

numba/numba#1315 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support nogil=True for ufuncs and gufuncs Open

enhancement good first issue Task

numba/numba#1317 · 10 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Improving support for numpy.random Open

feature_request numpy

numba/numba#1335 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
numba.jit memory leak Open

bug feature_request llvm

numba/numba#1361 · 13 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Printing in nopython mode uses the Python interpreter Open

feature_request

numba/numba#1390 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
fixing the "scoping" and "backbone" logic Open

enhancement

numba/numba#1395 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parallel ufunc target improvements Open

Task

numba/numba#1417 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Wishlist: Defining a numba capable python extension Open

feature_request

numba/numba#1478 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
the result of calling cffi function with float* argurements is not correct in numba 0.22.0 Open

bug

numba/numba#1512 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
device gufunc scheduling not handling output argument properly Open

bug

numba/numba#1520 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
CUDA compatible unravel_index Open

CUDA feature_request

numba/numba#1528 · 0 comments · 14 reactions · 0 assignees · Indexed Sep 14, 2026
Memory leak when raise exception Open

bug

numba/numba#1549 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Jitclass: support for __call__ etc Open

enhancement jitclass

numba/numba#1606 · 17 comments · 18 reactions · 0 assignees · Indexed Sep 14, 2026
JIT Class: Support for (Multiple) inheritance/mixins Open

feature_request jitclass

numba/numba#1629 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Numpy unsigned int values evaluation Open

bug - incorrect behavior

numba/numba#1653 · 5 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Guvectorize signature with frozen arguments Open

feature_request

numba/numba#1668 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
caching functions taking a JIT class Open

caching feature_request jitclass

numba/numba#1681 · 3 comments · 3 reactions · 0 assignees · Indexed Sep 14, 2026
Internal error when using CFFI .lib directly Open

feature_request

numba/numba#1688 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Initializer for parent of jitclass with inheritance Open

feature_request jitclass

numba/numba#1694 · 11 comments · 14 reactions · 0 assignees · Indexed Sep 14, 2026
Add a user API for CUDA kernel cache/shared memory configuration Open

CUDA enhancement

numba/numba#1711 · 3 comments · 3 reactions · 0 assignees · Indexed Sep 14, 2026
Parallel vectorized function Open

bug

numba/numba#1721 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
np.timedelta64 not recognized in nopython mode Open

feature_request

numba/numba#1750 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
NRT memory leak when calling function which calls a generator function Open

bug

numba/numba#1807 · 3 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
jitclass: support setattr and self.__setattr__ within njit compiled functions Open

feature_request jitclass

numba/numba#1818 · 7 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
scalar type takes lower precedence in casting with array types Open

discussion numpy

numba/numba#1822 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Feedback on np.nditer Open

feature_request

numba/numba#1825 · 15 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Caching issue : functions in different modules Open

bug caching

numba/numba#1833 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support for numpy masked arrays Open

feature_request

numba/numba#1834 · 7 comments · 12 reactions · 0 assignees · Indexed Sep 14, 2026
Compile-time getattr for constant objects Open

feature_request

numba/numba#1843 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
make jitclass pickleable Open

feature_request jitclass

numba/numba#1846 · 9 comments · 3 reactions · 0 assignees · Indexed Sep 14, 2026

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