Confirmed as a bug in scipy 1.6.1,
https://github.com/scipy/scipy/issues/13585 https://github.com/scipy/scipy/pull/13586
qutip upstream were quick to acknowledge the scipy 1.6.1 problem in
qutip Issue #1451 .
- Bug#983328: pandas: sparse test_from_coo fails with scip... Drew Parsons
- Bug#983328: pandas: sparse test_from_coo fails with... Rebecca N. Palmer
- Bug#983328: pandas: sparse test_from_coo fails ... Drew Parsons
- Bug#983328: pandas: sparse test_from_coo fa... Drew Parsons
- Bug#983328: scipy 1.6.1 breaks sparse (... Drew Parsons
- Bug#983328: scipy 1.6.1 breaks spa... Drew Parsons
- Bug#983328: scipy 1.6.1 breaks... Rebecca N. Palmer
- Bug#983328: scipy 1.6.1 br... Drew Parsons
- Bug#983328: scipy 1.6.1 br... Rebecca N. Palmer
