This patch makes the "too_slow" health check more consistent with long "deadline" tests (issue #3367) and fixes an install issue under pipenv which was introduced in Hypothesis 6.47.2 (issue #3374). The canonical version of these notes (with links) is on readthedocs.If you use Hypothesis as part of a published research project, please cite our paper in the Journal of Open Source Software: Text: MacIver et al., (2019). Hypothesis: A new approach to property-based testing. Journal of Open Source Software, 4(43), 1891, https://doi.org/10.21105/joss.01891 BibTeX: @article{MacIver2019Hypothesis, journal = {Journal of Open Source Software}, doi = {10.21105/joss.01891}, issn = {2475-9066}, number = {43}, publisher = {The Open Journal...