Hypothesis

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This release provides a performance improvement to shrinking. For cases where
there is some non-trivial "boundary" value (e.g. the bug happens for all values
greater than some other value), shrinking should now be substantially faster.
Other types of bug will likely see improvements too.

This may also result in some changes to the quality of the final examples - it
may sometimes be better, but is more likely to get slightly worse in some edge
cases. If you see any examples where this happens in practice, please report
them.

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This is a bugfix release: Hypothesis now prints explicit examples when
running in verbose mode. (:issue:`313`)

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This is a bugfix release: Hypothesis no longer emits a warning if you try to
use :func:`~hypothesis.strategies.sampled_from` with
:class:`python:collections.OrderedDict`. (:issue:`688`)

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This is a documentation release. Several outdated snippets have been updated
or removed, and many cross-references are now hyperlinks.

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This is a minor ergonomics release. Tracebacks shown by pytest no longer
include Hypothesis internals for test functions decorated with :func:`given <hypothesis.given>`.

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This is a feature release, adding datetime-related strategies to the core strategies.

:func:`~hypothesis.extra.pytz.timezones` allows you to sample pytz timezones from
the Olsen database. Use directly in a recipe for tz-aware datetimes, or
compose with :func:`~hypothesis.strategies.none` to allow a mix of aware and naive output.

The new :func:`~hypothesis.strategies.dates`, :func:`~hypothesis.strategies.times`,
:func:`~hypothesis.strategies.datetimes`, and :func:`~hypothesis.strategies.timedeltas`
strategies are all constrained by objects of their type.
This means that you can generate dates bounded by a single day
(i.e. a single date), or datetimes constrained to the microsecond.

:func:`~hypothesis.strategies.times` and :func:`~hypothesis.strategies.datetimes`
take an optional ``timezones=`` argument, which
defaults to :func:`~hypothesis.strategies.none` for naive times. You can use our extra strategy
based on pytz, or roll your own timezones strategy with dateutil or even
the standard library.

The old ``dates``, ``times``, and ``datetimes`` strategies in
``hypothesis.extra.datetimes`` are deprecated in favor of the new
core strategies, which are more flexible and have no dependencies.