Perf: vectorise Pandas datetime/timespan import+export; add Cython directives#3

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perf/pandas-vectorize

Commits on Apr 5, 2026

Perf: vectorise Pandas datetime/timespan import+export; add Cython directives

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claude
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Fix: wrap long conditional line to stay under 120 chars (E501)

stewjb
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claude
committed
Perf: zero-copy Pandas datetime/timespan export; single-pass NaT import

stewjb
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claude
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Perf: vectorise date export; fix any(Series) hotspot; use DataFrame constructor

stewjb
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claude
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Perf: faster time export; drop redundant timedelta copy; guard object .loc

stewjb
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claude
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Fix: use np.asarray for date export to handle full year-1..9999 range

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claude
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Test: add temporal edge-case coverage for optimized export/import paths

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Test: add empty-DataFrame and multi-chunk export tests for bounds safety

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Revert "CI: add no_polars test environment to verify package works without polars/pyarrow"
stewjb
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CI: add AddressSanitizer job to catch out-of-bounds access in native extension

stewjb
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claude
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Fix: rename df/df2 variables to satisfy pylint invalid-name rule (min 3 chars)

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claude
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Fix: add intercept_cxx_exceptions=0 to ASAN_OPTIONS to suppress matplotlib false positive

stewjb
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claude
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Fix: type: ignore for pd.array NaT overloads; pin ASan job to Python 3.13

stewjb
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claude
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CI: fix ASan crash by dropping pybind11 packages; bump actions to Node.js 24; fix line-too-long

stewjb
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claude
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Fix: make geopandas/matplotlib/seaborn imports optional; add CI concurrency group

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claude
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Fix: add explicit 'import matplotlib' so pylint recognises it as a module alias

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claude
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Perf: direct pointer access in string/binary C helpers; eliminate slice alloc in offset ptr

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claude
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Fix: align continuation lines in sbdf_helpers.pxi to fix E127 pycodestyle violation

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claude
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linting
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Fix: remove stray 'git checkout' prefix from test_sbdf.py module docstring

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Fix: wrap long function signatures in sbdf_helpers.c/.h to satisfy cpplint line-length rule

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Perf: vectorise Pandas datetime/timespan import+export; add Cython directives#3

Perf: vectorise Pandas datetime/timespan import+export; add Cython directives#3
stewjb wants to merge 21 commits into
mainfrom
perf/pandas-vectorize

Commits on Apr 5, 2026

Perf: vectorise Pandas datetime/timespan import+export; add Cython directives

Fix: wrap long conditional line to stay under 120 chars (E501)

Perf: zero-copy Pandas datetime/timespan export; single-pass NaT import

Perf: vectorise date export; fix any(Series) hotspot; use DataFrame constructor

Perf: faster time export; drop redundant timedelta copy; guard object .loc

Fix: use np.asarray for date export to handle full year-1..9999 range

Test: add temporal edge-case coverage for optimized export/import paths

Test: add empty-DataFrame and multi-chunk export tests for bounds safety

Revert "CI: add no_polars test environment to verify package works without polars/pyarrow"

CI: add AddressSanitizer job to catch out-of-bounds access in native extension

Fix: rename df/df2 variables to satisfy pylint invalid-name rule (min 3 chars)

Fix: add intercept_cxx_exceptions=0 to ASAN_OPTIONS to suppress matplotlib false positive

Fix: type: ignore for pd.array NaT overloads; pin ASan job to Python 3.13

CI: fix ASan crash by dropping pybind11 packages; bump actions to Node.js 24; fix line-too-long

Fix: make geopandas/matplotlib/seaborn imports optional; add CI concurrency group

Fix: add explicit 'import matplotlib' so pylint recognises it as a module alias

Perf: direct pointer access in string/binary C helpers; eliminate slice alloc in offset ptr

Fix: align continuation lines in sbdf_helpers.pxi to fix E127 pycodestyle violation

linting

Fix: remove stray 'git checkout' prefix from test_sbdf.py module docstring

Fix: wrap long function signatures in sbdf_helpers.c/.h to satisfy cpplint line-length rule