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Hypothesis

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Page 102 of 195

4.39.0

Not secure
-------------------

This release adds the :func:`~hypothesis.extra.numpy.basic_indices` strategy,
to generate `basic indexes <https://numpy.org/doc/stable/reference/arrays.indexing.html>`__
for arrays of the specified shape (:issue:`1930`).

It generates tuples containing some mix of integers, :obj:`python:slice` objects,
``...`` (Ellipsis), and :obj:`numpy:numpy.newaxis`; which when used to index an array
of the specified shape produce either a scalar or a shared-memory view of the array.
Note that the index tuple may be longer or shorter than the array shape, and may
produce a view with another dimensionality again!

Thanks to Lampros Mountrakis, Ryan Soklaski, and Zac Hatfield-Dodds for their
collaboration on this surprisingly subtle strategy!

4.38.3

Not secure
-------------------

This patch defers creation of the ``.hypothesis`` directory until we have
something to store in it, meaning that it will appear when Hypothesis is
used rather than simply installed.

Thanks to Peter C Kroon for the Hacktoberfest patch!

4.38.2

Not secure
-------------------

This patch bumps our dependency on :pypi:`attrs` to ``>=19.2.0``;
but there are no user-visible changes to Hypothesis.

4.38.1

Not secure
-------------------

This is a comment-only patch which tells :pypi:`mypy` 0.730 to ignore
some internal compatibility shims we use to support older Pythons.

4.38.0

Not secure
-------------------

This release adds the :func:`hypothesis.target` function, which implements
:ref:`targeted property-based testing <targeted-search>`
(:issue:`1779`).

By calling :func:`~hypothesis.target` in your test function, Hypothesis can
do a hill-climbing search for bugs. If you can calculate a suitable metric
such as the load factor or length of a queue, this can help you find bugs with
inputs that are highly improbably from unguided generation - however good our
heuristics, example diversity, and deduplication logic might be. After all,
those features are at work in targeted PBT too!

4.37.0

Not secure
-------------------

This release emits a warning if you use the ``.example()`` method of
a strategy in a non-interactive context.

:func:`~hypothesis.given` is a much better choice for writing tests,
whether you care about performance, minimal examples, reproducing
failures, or even just the variety of inputs that will be tested!

Page 102 of 195

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