Fix random number generator seed argument for quantum_volume (backport #14586) #14592
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* Fix random number generator seed argument for quantum_volume The `seed` argument to `quantum_volume` being a `numpy.random.Generator` resulted in `integers` being called with 0 for the `low` argument. When called with only a `low` argument like this, this value is taken as one more than the maximum and 0 is treated as the minimum. This resulted in a `TypeError` because the range is from 0 to -1. Here the handling of `Generator` was updated to match how the deprecated `QuantumVolume` class handled `seed` (which was slightly odd -- it caps the range at the int64 limit even though the argument is a `u64` in the Rust function -- but probably fine; keeping the range helps keep the behavior consistent between `QuantumVolume` and `quantum_volume` for a generator with the same seed). * Address pylint's misunderstanding of the test import (cherry picked from commit ba74b5c)
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ElePT
approved these changes
Jun 13, 2025
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The
seedargument toquantum_volumebeing anumpy.random.Generatorresulted inintegersbeing called with 0 for thelowargument. When called with only alowargument like this, this value is taken as one more than the maximum and 0 is treated as the minimum. This resulted in aTypeErrorbecause the range is from 0 to -1. Here the handling ofGeneratorwas updated to match how the deprecatedQuantumVolumeclass handledseed(which was slightly odd -- it caps the range at the int64 limit even though the argument is au64in the Rust function -- but probably fine; keeping the range helps keep the behavior consistent betweenQuantumVolumeandquantum_volumefor a generator with the same seed).This is an automatic backport of pull request #14586 done by [Mergify](https://mergify.com).