Exceptions Raised by the Problem Registry

These are all exceptions and warnings raised by The Problem Registry.

Inheritance hierarchy of the exceptions. Mix-in standard library exceptions like TypeError are not shown.

exception cernml.coi.registration.errors.AmbiguousNamespaceWarning

Bases: RegistryWarning, RuntimeWarning

An env spec is given a namespace via two different means.

exception cernml.coi.registration.errors.ApiCompatError

Bases: RegistryError, TypeError

Step API Compatibility wrapper applied to incompatible env.

exception cernml.coi.registration.errors.DeprecatedEnv

Bases: NotFoundError

The env doesn’t use versioning, but user passed a version.

exception cernml.coi.registration.errors.EntryPointError

Bases: RegistryError, TypeError

No entry point found.

exception cernml.coi.registration.errors.EnvImportError

Bases: RegistryError, ImportError

Could not import a module required to load an environment.

exception cernml.coi.registration.errors.EnvOutOfDateWarning

Bases: RegistryWarning, DeprecationWarning

An env has been loaded with a lower version than is available.

exception cernml.coi.registration.errors.EnvSpecExistsWarning

Bases: RegistryWarning, RuntimeWarning

Two environments are using the same ID string.

exception cernml.coi.registration.errors.EnvUpgradedWarning

Bases: RegistryWarning

An unversioned env ID has been replaced with its latest version.

exception cernml.coi.registration.errors.GymDeprecationWarning

Bases: RegistryWarning, DeprecationWarning

Warning about feature to be removed in Gymnasium 1.0.

exception cernml.coi.registration.errors.HumanRenderingError

Bases: RegistryError, TypeError

The HumanRendering wrapper couldn’t be created.

exception cernml.coi.registration.errors.HumanRenderingWarning

Bases: RenderModeWarning

A missing human rendering mode is being adapted via wrapper.

exception cernml.coi.registration.errors.NameNotFoundError

Bases: NotFoundError

Env spec name couldn’t be found.

exception cernml.coi.registration.errors.NamespaceNotFoundError

Bases: NotFoundError

Env spec namespace couldn’t be found.

exception cernml.coi.registration.errors.NotFoundError

Bases: RegistryError

Env spec couldn’t be found.

exception cernml.coi.registration.errors.PluginWarning

Bases: RegistryWarning, RuntimeWarning

A plugin failed to load.

exception cernml.coi.registration.errors.RegistrationError

Bases: RegistryError

An error occurred while registering an env.

exception cernml.coi.registration.errors.RegistryError

Bases: Exception

An error occurred in the EnvRegistry.

exception cernml.coi.registration.errors.RegistryWarning

Bases: UserWarning

A warning emitted by the EnvRegistry.

exception cernml.coi.registration.errors.RenderModeWarning

Bases: RegistryWarning

The user chose an incompatible render mode.

exception cernml.coi.registration.errors.UnversionedExistsError

Bases: RegistrationError

Tried to register a versioned env where an unversioned exists.

exception cernml.coi.registration.errors.VersionNotFoundError

Bases: NotFoundError

Env spec version couldn’t be found.

exception cernml.coi.registration.errors.VersionedExistsError

Bases: RegistrationError

Tried to register an unversioned env where a versioned exists.

exception cernml.coi.registration.errors.WrapperClassError

Bases: WrapperError

Attempt to load a wrapper that does not support reconstruction.

exception cernml.coi.registration.errors.WrapperError

Bases: RegistryError, ValueError

Recreating a wrapper went wrong.

exception cernml.coi.registration.errors.WrapperMismatchError

Bases: WrapperError

A specified wrapper differed from its spec.

exception cernml.coi.registration.errors.WrapperUnexpectedError

Bases: WrapperError

The entry point created more wrappers than specified.