BUG: Unstack/pivot raising ValueError on large result #45084
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mroeschke
commented
Dec 28, 2021
mroeschke
commented
- closes Pivot / unstack on large data frame does not work int32 overflow #26314
- tests added / passed
- Ensure all linting tests pass, see here for how to run them
- whatsnew entry
jreback
reviewed
Dec 28, 2021
| msg = "Unstacked DataFrame is too big, causing int32 overflow" | ||
| with pytest.raises(ValueError, match=msg): | ||
| msg = "The following operation may generate" | ||
| with tm.assert_produces_warning(PerformanceWarning, match=msg): |
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does this test actually run?
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Yup. These are running on the slow builds.
6.56s call pandas/tests/frame/test_stack_unstack.py::TestStackUnstackMultiLevel::test_unstack_number_of_levels_larger_than_int32
6.50s call pandas/tests/reshape/test_pivot.py::TestPivotTable::test_pivot_number_of_levels_larger_than_int32
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thanks @mroeschke |
|
@mroeschke this seems to significantly increase the run time running the tests locally. also the tests fail with pytest-xdist... node down. |
2 tasks
Addressed in #45112. Now takes ~4 seconds locally. |
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