Hotfix: fix type errors in Python 3.9

What's Changed

• Fix typing issue in python 3.9 by @ernestum in #77

New Contributors

• @ernestum made their first contribution in #77

Full Changelog: v0.2...v0.2.1

Add Gymnasium support

What's Changed

• Add score masking to seven atari environments by @stewy33 in #62
• Remove unused MuJoCo context from CircleCI by @AdamGleave in #68
• Don't override terminal observation when using AutoResetWrapper by @PavelCz in #69
• Migrate to gymnasium maintaining python 3.8 compatibility by @EdoardoPona and @ernestum in #73

Full Changelog: v0.1.5...v0.2

Minor bugfixes

What's Changed

• Update sphinxcontrib-napoleon to sphinx.ext.napoleon by @ianyfan in #65
• Change type of horizon from float to int. by @ianyfan in #66

New Contributors

• @ianyfan made their first contribution in #65

Full Changelog: v0.1.4...v0.1.5

Version 0.1.4

What's Changed

Add CliffWorld and Random transition environments, relocated from imitation, in #58

New Contributors

• @Rocamonde made their first contribution in #58

Full Changelog: v0.1.3...v0.1.4

Version 0.1.3

New Features

• Add Atari environments by @dfilan in #57
• Automate PyPI uploads on release by @taufeeque9 in #60

Bugfixes

• Give parabola finite action space by @dfilan in #55

Full Changelog: v0.1.2...v0.1.3

Version 0.1.2 -- Improve exported test methods

Minor release adding:

• Support for testing environments with dict observation spaces. No environments in seals use dict currently, but some external packages building on seals need this.
• Make mujoco_py an optional dependency for the exported test helper methods. While seals uses MuJoCo extensively, again some external packages wish to keep this optional.

Version 0.1.1 -- New environments, test suite improvements

• Adds a variety of new "diagnostic tasks", to described in an upcoming paper.
• Improve test suite: test data types match those declared in observation_space; test environment rendering.