* Switch from List to Sequence for `seed()` type hint
* Fix logger type hints
* Improve replay buffer type hints
* Fix custom envs type annotations
* Fix VecMonitor type hints
* Fix RMSprop type hint
* Fix vec extract dict obs type hints
* Fix vec frame stack type annotations
* Fix base vec env type hints
* Fix dummy vec env type hints
* Fix for mypy
* Fixes for the tests
* mypy doesn't like when we overwrite type
* fix step of SimpleMultiObsEnv
* remove useless type specification
* Rm useless type hint
* Improve logger type hint
* format
* rm useless type hint
* Re-add variables in constructor, remove unused import
---------
Co-authored-by: Quentin Gallouédec <45557362+qgallouedec@users.noreply.github.com>
* Fix failing set_env test
* Fix test failiing due to deprectation of env.seed
* Adjust mean reward threshold in failing test
* Fix her test failing due to rng
* Change seed and revert reward threshold to 90
* Pin gym version
* Make VecEnv compatible with gym seeding change
* Revert change to VecEnv reset signature
* Change subprocenv seed cmd to call reset instead
* Fix type check
* Add backward compat
* Add `compat_gym_seed` helper
* Add goal env checks in env_checker
* Add docs on HER requirements for envs
* Capture user warning in test with inverted box space
* Update ale-py version
* Fix randint
* Allow noop_max to be zero
* Update changelog
* Update docker image
* Update doc conda env and dockerfile
* Custom envs should not have any warnings
* Fix test for numpy >= 1.21
* Add check for vectorized compute reward
* Bump to gym 0.24
* Fix gym default step docstring
* Test downgrading gym
* Revert "Test downgrading gym"
This reverts commit 0072b77156c006ada8a1d6e26ce347ed85a83eeb.
* Fix protobuf error
* Fix in dependencies
* Fix protobuf dep
* Use newest version of cartpole
* Update gym
* Fix warning
* Loosen required scipy version
* Scipy no longer needed
* Try gym 0.25
* Silence warnings from gym
* Filter warnings during tests
* Update doc
* Update requirements
* Add gym 26 compat in vec env
* Fixes in envs and tests for gym 0.26+
* Enforce gym 0.26 api
* format
* Fix formatting
* Fix dependencies
* Fix syntax
* Cleanup doc and warnings
* Faster tests
* Higher budget for HER perf test (revert prev change)
* Fixes and update doc
* Fix doc build
* Fix breaking change
* Fixes for rendering
* Rename variables in monitor
* update render method for gym 0.26 API
backwards compatible (mode argument is allowed) while using the gym 0.26 API (render mode is determined at environment creation)
* update tests and docs to new gym render API
* undo removal of render modes metatadata check
* set rgb_array as default render mode for gym.make
* undo changes & raise warning if not 'rgb_array'
* Fix type check
* Remove recursion and fix type checking
* Remove hacks for protobuf and gym 0.24
* Fix type annotations
* reuse existing render_mode attribute
* return tiled images for 'human' render mode
* Allow to use opencv for human render, fix typos
* Add warning when using non-zero start with Discrete (fixes#1197)
* Fix type checking
* Bug fixes and handle more cases
* Throw proper warnings
* Update test
* Fix new metadata name
* Ignore numpy warnings
* Fixes in vec recorder
* Global ignore
* Filter local warning too
* Monkey patch not needed for gym 26
* Add doc of VecEnv vs Gym API
* Add render test
* Fix return type
* Update VecEnv vs Gym API doc
* Fix for custom render mode
* Fix return type
* Fix type checking
* check test env test_buffer
* skip render check
* check env test_dict_env
* test_env test_gae
* check envs in remaining tests
* Update tests
* Add warning for Discrete action space with non-zero (#1295)
* Fix atari annotation
* ignore get_action_meanings [attr-defined]
* Fix mypy issues
* Add patch for gym/gymnasium transition
* Switch to gymnasium
* Rely on signature instead of version
* More patches
* Type ignore because of https://github.com/Farama-Foundation/Gymnasium/pull/39
* Fix doc build
* Fix pytype errors
* Fix atari requirement
* Update env checker due to change in dtype for Discrete
* Fix type hint
* Convert spaces for saved models
* Ignore pytype
* Remove gitlab CI
* Disable pytype for convert space
* Fix undefined info
* Fix undefined info
* Upgrade shimmy
* Fix wrappers type annotation (need PR from Gymnasium)
* Fix gymnasium dependency
* Fix dependency declaration
* Cap pygame version for python 3.7
* Point to master branch (v0.28.0)
* Fix: use main not master branch
* Rename done to terminated
* Fix pygame dependency for python 3.7
* Rename gym to gymnasium
* Update Gymnasium
* Fix test
* Fix tests
* Forks don't have access to private variables
* Fix linter warnings
* Update read the doc env
* Fix env checker for GoalEnv
* Fix import
* Update env checker (more info) and fix dtype
* Use micromamab for Docker
* Update dependencies
* Clarify VecEnv doc
* Fix Gymnasium version
* Copy file only after mamba install
* [ci skip] Update docker doc
* Polish code
* Reformat
* Remove deprecated features
* Ignore warning
* Update doc
* Update examples and changelog
* Fix type annotation bundle (SAC, TD3, A2C, PPO, base class) (#1436)
* Fix SAC type hints, improve DQN ones
* Fix A2C and TD3 type hints
* Fix PPO type hints
* Fix on-policy type hints
* Fix base class type annotation, do not use defaults
* Update version
* Disable mypy for python 3.7
* Rename Gym26StepReturn
* Update continuous critic type annotation
* Fix pytype complain
---------
Co-authored-by: Carlos Luis <carlos.luisgonc@gmail.com>
Co-authored-by: Quentin Gallouédec <45557362+qgallouedec@users.noreply.github.com>
Co-authored-by: Thomas Lips <37955681+tlpss@users.noreply.github.com>
Co-authored-by: tlips <thomas.lips@ugent.be>
Co-authored-by: tlpss <thomas17.lips@gmail.com>
Co-authored-by: Quentin GALLOUÉDEC <gallouedec.quentin@gmail.com>
* VecExtractDictObs handle terminal_observation
* Added VecExtractDictObs handle terminal_output to changelog
* Update changelog.rst
* Update test_vec_extract_dict_obs.py
Add random dones in env to test if terminal_observation is properly handled
* Made test deterministic
* Fixed bug in test
* Improved test
* Fix format in test
* Update test
* Fix type hint
* Ignore pytype warning
* Ignore pytype
---------
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
* Rename the observations variable in the evaluation util to avoid shadowing
This enables a callback in evaluate_policy to have access to the
observation vector that is fed to the environment step function,
which is currently shadowed by the output observation.
* Update changelog
* Add test
* Move assignment outside of the loop
---------
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
Co-authored-by: Antonin Raffin <antonin.raffin@dlr.de>
* Fix type hints for DQN
* [ci skip] Remove commented line
* Refine types
* Fix vectorized obs detection
* Fix for pytype
* Fix check at load time to create replay buffer
* One config file to rule them all
* Delete unused config
---------
Co-authored-by: Quentin Gallouédec <45557362+qgallouedec@users.noreply.github.com>
* add instructions for running single tests in the README, add assertions for observation_space
* update changelog
* address linting warnings
* correct pytest command in the README
* correct review comments, run make commit-checks
* truncate lines that are too long
* address make lint warning about checking module availability
* fix tests
* use f-strings for formatting assertion messages
* fix type issue
* Refactor tests, improve error messages
---------
Co-authored-by: Antonin Raffin <antonin.raffin@dlr.de>
* Fixed noise to return float32
* Updated changelog
* Fixed test to use numpy arrays instead of python floats
* Sorted imports for tests
* Added dtype to constructor
* Removed dtype parameter for VectorizedActionNoise
* __init__ -> None; Capitalize and period in docstring when needed; fix dtype type hint; dtype in docstring
* fix dtype type hint
* Update version
* Clarify changelog [skip ci]
* empty commit to run ci
* Update docs/misc/changelog.rst
---------
Co-authored-by: Quentin Gallouédec <45557362+qgallouedec@users.noreply.github.com>
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
* repeat_action_probability
* Add test
* Undo atari wrapper doc change since CI fails
* remove action_repeat_probability from make_atari_env
* Add sticky action wrapper and improve documentation
* Update changelog
* handle the case noop_max=0
* Update tests
* Comply to ALE implementation
* Reorder doc
* Add doc warning and don't wrap with sticky action when not needed
* fix docstring and reorder
* Move `action_repeat_probability` args at the last position
* Add ref
* Update doc and wrap with frameskip only if needed
* Update changelog
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
* Modified actor-critic policies & MlpExtractor class
ActorCriticPolicy:
- changed type hint of net_arch param: now it's a dict
- removed check that if features extractor is not shared: no shared layers are allowed in the mlp_extractor regardless of the features extractor
ActorCriticCnnPolicy:
- changed type hint of net_arch param: now it's a dict
MultiInputActorcriticPolicy:
- changed type hint of net_arch param: now it's a dict
MlpExtractor:
- changed type hint of net_arch param: now it's a dict
- adapted networks creation
- adapted methods: forward, forward_actor & forward_critic
* Removed shared layers in mlp_extractor
* Updated docs and changelog + reformat
* Updated custom policy tests
* Removed test on deprecation warning for share layers in mlp_extractor
Now shared layers are removed
* Update version
* Update RL Zoo doc
* Fix linter warnings
* Add ruff to Makefile (experimental)
* Add backward compat code and minor updates
* Update tests
* Add backward compatibility
* Fix test
* Improve compat code
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
* Remove from mypy exclude
* type hint for metadata
* Union[float, int] -> float
* Remove useless __init__
* Type hint for model and logger in BaseCallback
* Type hint for metric_dict
* Update changelog
* fix test_tensorboard
* ignore gamma type checking
* Fix monitor type hint
* Update logger type hints
* Fix type annotation and bump version
* Fix circular import
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
* generalize the use of `from gym import spaces`
* command line get system info
* Documentation line length for doc
* update changelog
* add space before os plateform to avoid ref to other issue
* format
* get_system_info update in changelog
* fix type check error
* fix get system info
* add comment about regex
* update version
* Modified ActorCriticPolicy to support non-shared features extractor
* Refactored features extraction with non-shared features extractor in ActorCriticPolicy and updated doc
Doc update: added 'warning' on custom policy docs that says that, if the features extractor is non-shared, it's not possible to have shared layers in the mlp_extractor
* Moved attrib share_features_extractor in class
* Updated custom policy doc for non-shared features extractor
* Updated changelog
* Made some if-statements more readable if policies.py
The if-statements are related to the shared/non-shared features extractor in ActorCritic policies
* Simplify implementation and add run test
* Keep order in module gain to keep previous results consistents
* Fix test
* Improved docstring in policies.py
Co-authored-by: Quentin Gallouédec <45557362+qgallouedec@users.noreply.github.com>
* Added some tests
* feature extractor -> features extractor
* Fix test
* Fix env_id in test
* Make features extractor parameter explicit
* Remove duplicate
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
Co-authored-by: Quentin Gallouédec <45557362+qgallouedec@users.noreply.github.com>
Co-authored-by: Antonin Raffin <antonin.raffin@dlr.de>
* Fix support of image like normalized inputs
* Improve docstring and warning message.
* Don't check if obs is image when normalize_images is False (lil opt)
* Comment fix
* Fix normalize_images not passed to parent
* Check for subclasses too
* Remove useless multiline
* Update version and add comment
* Fix some typos
Co-authored-by: Quentin Gallouédec <45557362+qgallouedec@users.noreply.github.com>
* Raise error when same env object instance is passed in vectorized environment
* At to changelog
* Add raises to docstring
* Add test
* Also test make_vec_env
* Fix test
* Try to enable color for MyPy
* Update version and ignore lint warnings
Co-authored-by: Quentin Gallouédec <45557362+qgallouedec@users.noreply.github.com>
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
Co-authored-by: Antonin Raffin <antonin.raffin@dlr.de>
* Install and configure mypy
* Test if github CI uses setup.cfg for mypy
* force color output
* tab to space
* Try to fix regex
* follow_imports silent
* use space as indentation
* fix indentation setup.cfg
* Show error code
* Update doc
* Udate changelog
* Ignore mypy cache files from commit
* Update gitlab CI
* Add pytype and mypy entry in Makefile
* Make mypy happy
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
* Add PolicyPredictor protocol and use it in evaluate_policy
* Update changelog
* Move Protocol to type_aliases to avoid circular import
* Add test for evaluate_policy on BasePolicy
* Remove unused import
* Use typing_extensions
* Move typing_extensions to 3rd party
* Add version range (typing_extensions uses SemVer)
* Import Protocol from typing_extensions only on Python<3.8
Co-authored-by: Quentin Gallouédec <45557362+qgallouedec@users.noreply.github.com>
* Install typing_extensions only on Python<3.8
* Add missing sys import
* Fix import ordering
* Fix observation type hint in predict
Co-authored-by: Quentin Gallouédec <45557362+qgallouedec@users.noreply.github.com>
Co-authored-by: Quentin GALLOUÉDEC <gallouedec.quentin@gmail.com>
* Adds deprecation warning if `eval_env` or `eval_freq` parameters are used. See #925
* added changelog entry
* added missing backtick
* deprecating `create_eval_env` parameter as well and adding comments to explain the `stacklevel` parameter used
* Updated tests to ignore DeprecationWarnings
* Updated changelog entry
* - Removed the `create_eval_env` parameter from the examples in the docs
- Removed information about the `create_eval_env` parameter from the migration docs
- Added information about deprecation of the `create_eval_env` parameter in the docs
* Add alternative in docstring
* Update docstrings
* `eval_freq` warning in docstring
* Add deprecation comments in tests
Co-authored-by: Quentin Gallouédec <45557362+qgallouedec@users.noreply.github.com>
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
Co-authored-by: Quentin GALLOUÉDEC <gallouedec.quentin@gmail.com>
* Add progress bar callback and argument
* Update doc
* Update changelog
* Upgrade pytype in docker image
* Use tqdm.write in the logger to have cleaner output
* Fix logger test
* Fix when doing multiple calls to learn()
* Address comments from code-review
* Fix loading with new `n_envs`
* Update tests
* Update changelog
* Fix the fix
* Remove `self._setup_model()` from `set_env()`
* Raise `AssertionError` when setting env with a different `n_envs`
* Update unitests
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
* Added option to override or use existing CSVs
* Updated changelog for Monitor override
* Changed default value to override
* Simplify code and add test
* Update version
* Fix for pytype
Co-authored-by: Antonin Raffin <antonin.raffin@ensta.org>
* fix nan in advnatages with batch size 1, for ppo
* changelog
* black
* Simplify test
* Bump version
Co-authored-by: Antonin Raffin <antonin.raffin@ensta.org>
* include `running_mean` and `running_val` when updating target networks in DQN, SAC, TD3.
* Update stable_baselines3/common/utils.py
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
* Precompute batch norm parameters in `_setup_model` and directly copy them in the target update.
* include `running_mean` and `running_val` when updating target networks in DQN, SAC, TD3.
* Update stable_baselines3/common/utils.py
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
* Precompute batch norm parameters in `_setup_model` and directly copy them in the target update.
* Fix `DictReplayBuffer.next_observations` type (#1013)
* Fix DictReplayBuffer.next_observations type
* Update changelog
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
* Fixed missing verbose parameter passing (#1011)
Co-authored-by: Quentin Gallouédec <45557362+qgallouedec@users.noreply.github.com>
* Support for `device=auto` buffers and set it as default value (#1009)
* Default device is "auto" for buffer + auto device support in BufferBaseClass
* Update docstring
* Update tests
* Unify tests
* Update changelog
* Fix tests on CUDA device
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
Co-authored-by: Antonin Raffin <antonin.raffin@dlr.de>
* Precompute batch norm parameters in `_setup_model` and directly copy them in the target update.
* Update test
* Add comments and update tests
* Bump version
* Remove one extra space to conform code style.
* Update docstrings
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
Co-authored-by: Quentin Gallouédec <45557362+qgallouedec@users.noreply.github.com>
Co-authored-by: Burak Demirbilek <BurakDmb@users.noreply.github.com>
Co-authored-by: Antonin Raffin <antonin.raffin@dlr.de>
* create Hparam class & support in all OutputFormats
* add hparams documentation & example
* add hparam tests
* remove unnecessary test & fix name
* format changes
* support hyperparameters logging to tensorboard
* fix HParams class docstring
* use more explicit variable names
* raise error instead of warning
* Unpin protobuf
* Add test for logging hparams
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
* Handle non 1D action shape
* Revert changes of observation (out of the scope of this PR)
* Apply changes to DictReplayBuffer
* Update tests
* Rollout buffer n-D actions space handling
* Remove error when non 1D action space
* ActorCriticPolicy return action with the proper shape
* remove useless reshape
* Update changelog
* Add tests
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
* Use higher resolution time and round up to eps
* Update changelog
* Add test case
* Fix formatting, time()->time_ns
* Bugfix: ns is integer not float
* Move test to better place
* Divide by 1e9 earlier
* `arr[0]` to `arr.squeeze(0)`
* `squeeze(axis=0)` to `squeeze(0)`
* Type testing
* Add type test for unvectorized observation
* `squeeze(0)` to `squeeze(axis=0)`
* Treatment of the laziness symptoms
* Update changelog
* Udate changelog
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
* Prohibit simultaneous use of optimize_memory_buffer and handle_timeout_termination
* Modify test to avoid unsupported buffer configuration
* Change from assertion to raising of ValueError
* Update changelog
* Update style for consistency
* Use handle_timeout_termination when possible
Co-authored-by: Anssi <kaneran21@hotmail.com>
Co-authored-by: Antonin Raffin <antonin.raffin@ensta.org>
* Fixed unchecked None value in SubprocVecEnv
* Fixed unchecked None value in DummyVecEnv
* Fix formatting
* Update test and changelog
* Improve test
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
* escape tensorboard log name
Otherwise utils does not recognize the log.
* Added fix to changelog
* Modifications made by: make commit-checks .
* Revert "Modifications made by: make commit-checks ."
This reverts commit 529a275d9475f85ef031038a8f3565f7301e5371.
* Update changelog and add test
Co-authored-by: James Hirschorn <James.Hirschorn@quantitative-technologies.com>
* Added StopTrainingOnNoModelImprovement callback and callback_after_eval parameter in EvalCallback
* Correction in EvalCallback and tests for StopTrainingOnNoModelImprovement
* Update the docs related to new StopTrainingOnNoModelImprovement callback
* Update doc
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
Co-authored-by: Antonin Raffin <antonin.raffin@dlr.de>
* Allow PPO to turn of advantage normalization
* update changelog
* Add a test case
* Update test and sanity check
* Fix tests
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
* Make HumanOutputFormat length configurable and bump to 36 by default
* Add test case
* Updated changelog
* Blacken
* Blacken code
* Fix GitLab CI: switch to Docker container with new black version
* Incorporate suggestion
* Add class docstring
* Dummy commit to retrigger GitLab
Co-authored-by: Anssi <kaneran21@hotmail.com>
* fix Atari in CI
* fix dtype and atari extra
* Update setup.py
* remove 3.6
* note about how to install Atari
* pendulum-v1
* atari v5
* black
* fix pendulum capitalization
* add minimum version
* moved things in changelog to breaking changes
* partial v5 fix
* env update to pass tests
* mismatch env version fixed
* Fix tests after merge
* Include autorom in setup.py
* Blacken code
* Fix dtype issue in more robust way
* Fix GitLab CI: switch to Docker container with new black version
* Remove workaround from GitLab. (May need to rebuild Docker for this though.)
* Revert to v4
* Update setup.py
* Apply suggestions from code review
* Remove unnecessary autorom
* Consistent gym versions
Co-authored-by: J K Terry <justinkterry@gmail.com>
Co-authored-by: Anssi <kaneran21@hotmail.com>
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
Co-authored-by: modanesh <mohamad4danesh@gmail.com>
Co-authored-by: Adam Gleave <adam@gleave.me>
* Writing the additional info_keywords into the episode infos that are passed to the resulst writer. Directly taken from the non-vec version of monitor.
* Added test for monitoring info_keywords.
* Removed unnecessary step of registering the env. Not using make_vec_env, because it applies a monitor wrapper to the env.
* Reformat
Co-authored-by: Antonin Raffin <antonin.raffin@ensta.org>
* Add multi-env training support for SAC
* Fix for dict obs
* Pytype fixes
* Fix assert on number of envs
* Remove for loop
* Add support for Dict obs
* Start cleanup
* Update doc and bug fix
* Add support for vectorized action noise
and add multi env example for off-policy
* Update version
* Bug fix with VecNormalize
* Update README table
* Update variable names
* Update changelog and version
* Update doc and fix for `gradient_steps=-1`
* Add test for `gradient_steps=-1`
* Disable pytype pyi errors
* Fix for DQN
* Update comment on deepcopy
* Remove episode_reward field
* Fix RolloutReturn
* Avoid modification by reference
* Fix error message
Co-authored-by: Anssi <kaneran21@hotmail.com>
* Store number of timesteps at the beginning of each learn cycle
* Update changelog
* Set default _num_timesteps_at_start in the contructor
* Test case for FPS logger
* Adjust test to cover both on-policy and off-policy algorithms
* Fix formatting
* Update test and add comment
* Fix test
Co-authored-by: Oleksii Kachaiev <okachaiev@riotgames.com>
Co-authored-by: Antonin RAFFIN <antonin.raffin@ensta.org>
* Add `system_env_info`
* Add `print_system_info` to load
and store system info at save time
* Remove TODO
* Rename to `get_system_info`
* Import as sb3 for consistency
* Update changelog
* Add warning for old SB3 versions
* Use underscore litteral for more clarity
* VecNormalize: allow non-continuous observations when norm_obs is False
* Update changelog, fix lint
* Switch to environment present in new and old versions of Gym
* Fix name
Co-authored-by: Antonin Raffin <antonin.raffin@ensta.org>
* feat: add method predict_values for ActorCriticPolicy
* Fixes for new gym version
* Reformat
Co-authored-by: Antonin Raffin <antonin.raffin@ensta.org>
* feat: get_distribution method for ActorCriticPolicy
New method get_distribution for class ActorCriticPolicy returning current action distribution given observations
* doc: updating changelog.rst
- adding block for Release 1.2.1a0
- adding cyprienc to contributors
* style: make format
* fix: updating version.txt
Changing version from 1.2.0 to 1.2.1a0
* Update changelog
* Add test for get distribution
Co-authored-by: Cyprien <courtot.c@gmail.com>
* make sure DQN policy is always in correct mode - train or eval
* make set_training_mode an abstract method of the base policy - safer
* update docstring of _build method to note that the target network is put into eval mode
* use set_training_mode to put the dqn target network into eval mode
* use set_training_mode to set the training model of the q-network
* move set_training_mode abstract method from BasePolicy to BaseModel
* set train and eval mode for TD3
* make sure critic is always in correct mode during train
* set train and eval mode for SAC
* add comment re batch norm and dropout
* set train and eval mode for A2C and PPO
* add tests for collect rollouts with batch norm
* fix formatting
* update change log
* update version
* remove Optional typing for batch size - causing type check to fail
* Fix scipy dependency for toy text envs
* implement set_training_mode method in BaseModel
* move all tests of train/eval mode to test_train_eval_mode
* call learn with learning_starts = total_timesteps to test that collect_rollouts does not update batch norm
* remove extra calls to set_training_mode in train method of TD3 and SAC
* Allow gradient_steps=0
* Refactor tests
* Add comment + use aliases
* Typos
Co-authored-by: Antonin Raffin <antonin.raffin@ensta.org>
