Skip to content

tanjun.errors#

The errors and warnings raised within and by Tanjun.

MissingDependencyError module-attribute #

MissingDependencyError = MissingDependencyError

Type alias of alluka.MissingDependencyError.

CommandError #

Bases: TanjunError

An error which is sent as a response to the command call.

attachments instance-attribute #

attachments = [attachment] if attachment else attachments

Sequence of the attachments to be sent as a response to the command, if set.

components instance-attribute #

components = [component] if component else components

Sequence of the components to be sent as a response to the command, if set.

content instance-attribute #

content = content

The response error message's content.

delete_after instance-attribute #

delete_after = delete_after

The seconds after which the response message should be deleted, if set.

embeds instance-attribute #

embeds = [embed] if embed else embeds

Sequence of the embeds to be sent as a response to the command, if set.

mentions_everyone instance-attribute #

mentions_everyone = mentions_everyone

Whether or not the response should be allowed to mention @everyone/@here.

role_mentions instance-attribute #

role_mentions = role_mentions

Configuration for the response's allowed role mentions.

If this is a sequence then the response will only be allowed to mention roles in the sequence.

If this is a bool then the response will only be allowed to mention roles if the value is True.

user_mentions instance-attribute #

user_mentions = user_mentions

Configuration for the response's allowed user mentions.

If this is a sequence then the response will only be allowed to mention users in the sequence.

If this is a bool then the response will only be allowed to mention users if the value is True.

__init__ #

__init__(content=hikari.UNDEFINED, *, delete_after=None, attachment=hikari.UNDEFINED, attachments=hikari.UNDEFINED, component=hikari.UNDEFINED, components=hikari.UNDEFINED, embed=hikari.UNDEFINED, embeds=hikari.UNDEFINED, mentions_everyone=hikari.UNDEFINED, user_mentions=hikari.UNDEFINED, role_mentions=hikari.UNDEFINED)

Initialise a command error.

Parameters:

  • content (UndefinedOr[Any], default: UNDEFINED ) –

    If provided, the message content to respond with.

    If this is a hikari.Embed and no embed nor embeds kwarg is provided, then this will instead be treated as an embed. This allows for simpler syntax when sending an embed alone.

    Likewise, if this is a hikari.Resource, then the content is instead treated as an attachment if no attachment and no attachments kwargs are provided.

  • delete_after (Union[timedelta, float, int, None], default: None ) –

    If provided, the seconds after which the response message should be deleted.

    Slash command responses can only be deleted within 15 minutes of the command being received.

  • attachment (UndefinedOr[Resourceish], default: UNDEFINED ) –

    A singular attachment to respond with.

  • attachments (UndefinedOr[Sequence[Resourceish]], default: UNDEFINED ) –

    A sequence of attachments to respond with.

  • component (UndefinedOr[ComponentBuilder], default: UNDEFINED ) –

    If provided, builder object of the component to include in this response.

  • components (UndefinedOr[Sequence[ComponentBuilder]], default: UNDEFINED ) –

    If provided, a sequence of the component builder objects to include in this response.

  • embed (UndefinedOr[Embed], default: UNDEFINED ) –

    An embed to respond with.

  • embeds (UndefinedOr[Sequence[Embed]], default: UNDEFINED ) –

    A sequence of embeds to respond with.

  • mentions_everyone (UndefinedOr[bool], default: UNDEFINED ) –

    If provided, whether the message should parse @everyone/@here mentions.

  • user_mentions (Union[SnowflakeishSequence[PartialUser], bool, UndefinedType], default: UNDEFINED ) –

    If provided, and True, all mentions will be parsed. If provided, and False, no mentions will be parsed.

    Alternatively this may be a collection of hikari.Snowflake, or hikari.PartialUser derivatives to enforce mentioning specific users.

  • role_mentions (Union[SnowflakeishSequence[PartialRole], bool, UndefinedType], default: UNDEFINED ) –

    If provided, and True, all mentions will be parsed. If provided, and False, no mentions will be parsed.

    Alternatively this may be a collection of hikari.Snowflake, or hikari.PartialRole derivatives to enforce mentioning specific roles.

Raises:

  • ValueError –

    Raised for any of the following reasons:

    • When both attachment and attachments are provided.
    • When both component and components are passed.
    • When both embed and embeds are passed.
    • If more than 100 entries are passed for role_mentions.
    • If more than 100 entries are passed for user_mentions.

send async #

send(ctx, /, *, ensure_result=False)

Send this error as a command response.

Parameters:

  • ctx (Context) –

    The command call context to respond to.

  • ensure_result (bool, default: False ) –

    Ensure that this call will always return a message object.

    If True then this will always return hikari.Message, otherwise this will return hikari.Message | None.

    It's worth noting that, under certain scenarios within the slash command flow, this may lead to an extre request being made.

Raises:

  • ValueError –

    If delete_after would be more than 15 minutes after the slash command was called.

  • BadRequestError –

    This may be raised in several discrete situations, such as messages being empty with no attachments or embeds; messages with more than 2000 characters in them, embeds that exceed one of the many embed limits; too many attachments; attachments that are too large; invalid image URLs in embeds; too many components.

  • UnauthorizedError –

    If you are unauthorized to make the request (invalid/missing token).

  • ForbiddenError –

    If you are missing the SEND_MESSAGES in the channel or the person you are trying to message has the DM's disabled.

  • NotFoundError –

    If the channel is not found.

  • RateLimitTooLongError –

    Raised in the event that a rate limit occurs that is longer than max_rate_limit when making a request.

  • InternalServerError –

    If an internal error occurs on Discord while handling the request.

ConversionError #

Bases: ParserError

Error raised by a parser parameter when it failed to converter a value.

errors instance-attribute #

errors = tuple(errors)

Sequence of the errors that were caught during conversion for this parameter.

message instance-attribute #

message = message

String message for this error.

Note

This may be used as a command response message.

parameter instance-attribute #

parameter

Name of the parameter this error was raised for.

__init__ #

__init__(message, parameter, /, *, errors=())

Initialise a conversion error.

Parameters:

  • parameter (str) –

    The parameter this was raised by.

  • errors (Iterable[ValueError], default: () ) –

    An iterable of the source value errors which were raised during conversion.

FailedCheck #

Bases: TanjunError, RuntimeError

Error raised as an alternative to returning False in a check.

FailedModuleImport #

Bases: FailedModuleLoad

Error raised when a module failed to import.

This is a specialisation of FailedModuleLoad.

FailedModuleLoad #

Bases: TanjunError

Error raised when a module fails to load.

This may be raised by the module failing to import or by one of its loaders erroring.

This source error can be accessed at FailedModuleLoad.__cause__.

__cause__ instance-attribute #

__cause__

The root error.

path property #

path

The path of the module which caused the error.

FailedModuleUnload #

Bases: TanjunError

Error raised when a module fails to unload.

This may be raised by the module failing to import or by one of its unloaders erroring.

The source error can be accessed at FailedModuleUnload.__cause__.

__cause__ instance-attribute #

__cause__

The root error.

path property #

path

The path of the module which caused the error.

HaltExecution #

Bases: TanjunError

Error raised while looking for a command in-order to end-execution early.

For the most part, this will be raised during checks in-order to prevent other commands from being tried.

InvalidCheck #

Bases: TanjunError, RuntimeError

Error raised as an assertion that a check will never pass in the current environment.

ModuleMissingLoaders #

Bases: RuntimeError, TanjunError

Error raised when a module is missing loaders.

message property #

message

The error message.

path property #

path

The path of the module which is missing loaders.

ModuleMissingUnloaders #

Bases: RuntimeError, TanjunError

Error raised when a module is missing unloaders.

message property #

message

The error message.

path property #

path

The path of the module which is missing unloaders.

ModuleStateConflict #

Bases: ValueError, TanjunError

Error raised when a module cannot be (un)loaded due to a state conflict.

message property #

message

The error message.

path property #

path

The path of the module which caused the error.

NotEnoughArgumentsError #

Bases: ParserError

Error raised by the parser when not enough arguments are found for a parameter.

message instance-attribute #

message = message

String message for this error.

Note

This may be used as a command response message.

parameter instance-attribute #

parameter

Name of the parameter this error was raised for.

__init__ #

__init__(message, parameter)

Initialise a not enough arguments error.

Parameters:

  • message (str) –

    The error message.

  • parameter (str) –

    The parameter this error was raised for.

ParserError #

Bases: TanjunError, ValueError

Base error raised by a parser or parameter during parsing.

Note

Expected errors raised by the parser will subclass this error.

message instance-attribute #

message = message

String message for this error.

Note

This may be used as a command response message.

parameter instance-attribute #

parameter = parameter

Name of the this was raised for.

Note

This will be None if it was raised while parsing the provided message content.

__init__ #

__init__(message, parameter)

Initialise a parser error.

Parameters:

  • message (str) –

    String message for this error.

  • parameter (Optional[str]) –

    Name of the parameter which caused this error, should be None if not applicable.

TanjunError #

Bases: Exception

The base class for all errors raised by Tanjun.

TooManyArgumentsError #

Bases: ParserError

Error raised by the parser when too many arguments are found for a parameter.

message instance-attribute #

message = message

String message for this error.

Note

This may be used as a command response message.

parameter instance-attribute #

parameter

Name of the parameter this error was raised for.

__init__ #

__init__(message, parameter)

Initialise a too many arguments error.

Parameters:

  • message (str) –

    The error message.

  • parameter (str) –

    The parameter this error was raised for.