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The base exception class is :exc:`.SQLAlchemyError`. Exceptions which are
raised as a result of DBAPI exceptions are all subclasses of
:exc:`.DBAPIError`.
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ArgumentErrorz�Raised when an invalid or conflicting function argument is supplied.
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N�r. r/ r0 r1 r r r r r@ v � r@ c @ r? )�DuplicateColumnErrorz�a Column is being added to a Table that would replace another
Column, without appropriate parameters to allow this in place.
.. versionadded:: 2.0.0b4
NrA r r r r rC ~ rB rC c s, e Zd ZdZd
� fdd� Zd dd �Z� ZS ) �ObjectNotExecutableErrorzVRaised when an object is passed to .execute() that can't be
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�targetr c s t � �d| � || _d S )Nz Not an executable object: %r)r r rE )r rE r r r r � s
z!ObjectNotExecutableError.__init__r" �Union[str, Tuple[Any, ...]]c C s | j | jffS r> )r rE r' r r r �
__reduce__� s z#ObjectNotExecutableError.__reduce__)rE r �r" rF )r. r/ r0 r1 r rG r3 r r r r rD � s rD c @ r? )�NoSuchModuleErrorzpRaised when a dynamically-loaded module (usually a database dialect)
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during a join.NrA r r r r rJ � rB rJ c @ r? )�AmbiguousForeignKeysErrorzhRaised when more than one foreign key matching can be located
between two selectables during a join.NrA r r r r rK � rB rK c @ r? )� ConstraintColumnNotFoundErrorz�raised when a constraint refers to a string column name that
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.. versionadded:: 2.0
NrA r r r r rL � rB rL c @ s* e Zd ZdZ ddd d �Zddd�ZdS )�CircularDependencyErrora Raised by topological sorts when a circular dependency is detected.
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DELETE statements alone; an UPDATE will be needed to post-associate
or pre-deassociate one of the foreign key constrained values.
The ``post_update`` flag described at :ref:`post_update` can resolve
this cycle.
* In a :attr:`_schema.MetaData.sorted_tables` operation, two
:class:`_schema.ForeignKey`
or :class:`_schema.ForeignKeyConstraint` objects mutually refer to each
other. Apply the ``use_alter=True`` flag to one or both,
see :ref:`use_alter`.
Nr, r �cyclesr �edges�msgr r c C sJ |d u r|dd� dd� |D �� 7 }n|}tj| ||d� || _|| _d S )Nz (%s)z, c s s � | ]}t |�V qd S r> )�repr)�.0�sr r r � <genexpr>� s � z3CircularDependencyError.__init__.<locals>.<genexpr>�r )�joinr4 r rN rO )r r, rN rO rP r r r r r � s
z CircularDependencyError.__init__r" rF c C s4 | j d | j| j| jd f| jd urd| jifS i fS )Nr r )r rN rO r6 r r' r r r rG � s ��z"CircularDependencyError.__reduce__)NN)
r, r rN r rO r rP r r r rH �r. r/ r0 r1 r rG r r r r rM � s �rM c @ r? )� CompileErrorz2Raised when an error occurs during SQL compilationNrA r r r r rX � rB rX c s4 e Zd ZdZdZ dd� fd
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Zddd�Z� ZS )�UnsupportedCompilationErrorz�Raised when an operation is not supported by the given compiler.
.. seealso::
:ref:`faq_sql_expression_string`
:ref:`error_l7de`
�l7deN�compiler� Union[Compiled, TypeCompiler]� element_type�Type[ClauseElement]r, r c s8 t � �d|||r d| ndf � || _|| _|| _d S )Nz-Compiler %r can't render element of type %s%sz: %sr# )r r r[ r] r, )r r[ r] r, r r r r � s ��
z$UnsupportedCompilationError.__init__r" rF c C s | j | j| j| jffS r> )r r[ r] r, r' r r r rG � � z&UnsupportedCompilationError.__reduce__r> )r[ r\ r] r^ r, r rH )r. r/ r0 r1 r r rG r3 r r r r rY � s �rY c @ r? )�IdentifierErrorz;Raised when a schema name is beyond the max character limitNrA r r r r r` � rB r` c @ � e Zd ZU dZdZded< dS )�DisconnectionErrora� A disconnect is detected on a raw DB-API connection.
This error is raised and consumed internally by a connection pool. It can
be raised by the :meth:`_events.PoolEvents.checkout`
event so that the host pool
forces a retry; the exception will be caught three times in a row before
the pool gives up and raises :class:`~sqlalchemy.exc.InvalidRequestError`
regarding the connection attempt.
F�bool�invalidate_poolN�r. r/ r0 r1 rd r2 r r r r rb � s
rb c @ ra )�InvalidatePoolErrora� Raised when the connection pool should invalidate all stale connections.
A subclass of :class:`_exc.DisconnectionError` that indicates that the
disconnect situation encountered on the connection probably means the
entire pool should be invalidated, as the database has been restarted.
This exception will be handled otherwise the same way as
:class:`_exc.DisconnectionError`, allowing three attempts to reconnect
before giving up.
.. versionadded:: 1.2
Trc rd Nre r r r r rf
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rf c @ r? )� TimeoutErrorz@Raised when a connection pool times out on getting a connection.NrA r r r r rg rB rg c @ r? )�InvalidRequestErrorzvSQLAlchemy was asked to do something it can't do.
This error generally corresponds to runtime state errors.
NrA r r r r rh # rB rh c @ r? )�IllegalStateChangeErrorzrAn object that tracks state encountered an illegal state change
of some kind.
.. versionadded:: 2.0
NrA r r r r ri + rB ri c @ r? )�NoInspectionAvailablezaA subject passed to :func:`sqlalchemy.inspection.inspect` produced
no context for inspection.NrA r r r r rj 4 rB rj c @ r? )�PendingRollbackErrorzlA transaction has failed and needs to be rolled back before
continuing.
.. versionadded:: 1.4
NrA r r r r rk 9 rB rk c @ r? )�ResourceClosedErrorzcAn operation was requested from a connection, cursor, or other
object that's in a closed state.NrA r r r r rl B rB rl c @ r? )�NoSuchColumnErrorz1A nonexistent column is requested from a ``Row``.NrA r r r r rm G rB rm c @ r? )�
NoResultFoundz�A database result was required but none was found.
.. versionchanged:: 1.4 This exception is now part of the
``sqlalchemy.exc`` module in Core, moved from the ORM. The symbol
remains importable from ``sqlalchemy.orm.exc``.
NrA r r r r rn K rB rn c @ r? )�MultipleResultsFounda A single database result was required but more than one were found.
.. versionchanged:: 1.4 This exception is now part of the
``sqlalchemy.exc`` module in Core, moved from the ORM. The symbol
remains importable from ``sqlalchemy.orm.exc``.
NrA r r r r ro W rB ro c @ s e Zd ZU dZded< dS )�NoReferenceErrorzDRaised by ``ForeignKey`` to indicate a reference cannot be resolved.r �
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z NoReferencedTableError.__init__r" rF c C s | j | jd | jffS �Nr )r r6 rq r' r r r rG � r_ z!NoReferencedTableError.__reduce__N)r, r rz r rH rW r r r r ry z s
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r, r rz �cnamec C s t �| |� || _|| _d S r> )rp r rq � column_name)r r, rz r} r r r r � s
z NoReferencedColumnError.__init__r" rF c C s | j | jd | j| jffS r{ )r r6 rq r~ r' r r r rG � s �z"NoReferencedColumnError.__reduce__N)r, r rz r r} r rH rW r r r r r| � s
r| c @ r? )�NoSuchTableErrorz7Table does not exist or is not visible to a connection.NrA r r r r r � rB r c @ r? )�UnreflectableTableErrorzUTable exists but can't be reflected for some reason.
.. versionadded:: 1.2
NrA r r r r r� � rB r� c @ r? )�UnboundExecutionErrorzASQL was attempted without a database connection to execute it on.NrA r r r r r� � rB r� c @ r? )�
DontWrapMixina: A mixin class which, when applied to a user-defined Exception class,
will not be wrapped inside of :exc:`.StatementError` if the error is
emitted within the process of executing a statement.
E.g.::
from sqlalchemy.exc import DontWrapMixin
class MyCustomException(Exception, DontWrapMixin):
pass
class MySpecialType(TypeDecorator):
impl = String
def process_bind_param(self, value, dialect):
if value == "invalid":
raise MyCustomException("invalid!")
NrA r r r r r� � rB r� c @ s� e Zd ZU dZdZded< dZded< dZded< dZd ed
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Nr � statement�Optional[_AnyExecuteParams]�params�Optional[BaseException]�orig�Optional[bool]�ismultiFrc �connection_invalidatedr, r �hide_parametersr c C s8 t j| ||d� || _|| _|| _|| _|| _g | _d S )NrU )r4 r r� r� r� r� r� �detail)r r, r� r� r� r� r r� r r r r � s
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DBAPIErrora Raised when the execution of a database operation fails.
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database operation. Driver-specific implementations of the standard
DB-API exception types are wrapped by matching sub-types of SQLAlchemy's
:class:`DBAPIError` when possible. DB-API's ``Error`` type maps to
:class:`DBAPIError` in SQLAlchemy, otherwise the names are identical. Note
that there is no guarantee that different DB-API implementations will
raise the same exception type for any given error condition.
:class:`DBAPIError` features :attr:`~.StatementError.statement`
and :attr:`~.StatementError.params` attributes which supply context
regarding the specifics of the statement which had an issue, for the
typical case when the error was raised within the context of
emitting a SQL statement.
The wrapped exception object is available in the
:attr:`~.StatementError.orig` attribute. Its type and properties are
DB-API implementation specific.
�dbapiFNr� r r� r� r� � Exception�dbapi_base_err�Type[Exception]r� rc r� �dialect�Optional[Dialect]r� r� r" r� c C � d S r> r � �clsr� r� r� r� r� r� r� r� r r r �instance4 � zDBAPIError.instancer� c C r� r> r r� r r r r� B r� �
BaseExceptionc C r� r> r r� r r r r� P r� �#Union[BaseException, DontWrapMixin]c C s t |t�r
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issubclassr� ) r� r� r� r� r� r� r� r� r� �glob�super_�namer r r r� ^ sr ��������� ���rF c C s4 | j | j| j| j| j| j| j�d�| jfd| j ifS )Nr r� )
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C st zt |�}W n ty } z dt | � }W Y d } ~ nd } ~ ww tj| d|jj|jj|f ||||||d� || _d S )Nz.Error in str() of DB-API-generated exception: r� )r r� )r r� r� r r r/ r. r� )
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H�r� c @ rr )�InterfaceErrorz Wraps a DB-API InterfaceError.�rvf5Nru r r r r r� � � r� c @ rr )�
DatabaseErrorz Wraps a DB-API DatabaseError.�4xp6Nru r r r r r� � r� r� c @ rr )� DataErrorzWraps a DB-API DataError.�9h9hNru r r r r r� � r� r� c @ rr )�OperationalErrorz Wraps a DB-API OperationalError.�e3q8Nru r r r r r� � r� r� c @ rr )�IntegrityErrorz Wraps a DB-API IntegrityError.�gkpjNru r r r r r� � r� r� c @ rr )�
InternalErrorz Wraps a DB-API InternalError.�2j85Nru r r r r r� � r� r� c @ rr )�ProgrammingErrorz Wraps a DB-API ProgrammingError.�f405Nru r r r r r� � r� r� c @ rr )�NotSupportedErrorz!Wraps a DB-API NotSupportedError.�tw8gNru r r r r r� � r� r� c @ r? )�SATestSuiteWarningz�warning for a condition detected during tests that is non-fatal
Currently outside of SAWarning so that we can work around tools like
Alembic doing the wrong thing with warnings.
NrA r r r r r� rB r� c @ � e Zd ZU dZdZded< dS )�SADeprecationWarningz$Issued for usage of deprecated APIs.Nr �deprecated_since�r. r/ r0 r1 r� r2 r r r r r� s
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.. seealso::
:ref:`error_b8d9`.
:ref:`deprecation_20_mode`
z1.4r r� r" r c s t � �� d S )Nz> (Background on SQLAlchemy 2.0 at: https://sqlalche.me/e/b8d9))r r* r' r r r r* $ s ��z Base20DeprecationWarning.__str__r- )r. r/ r0 r1 r� r2 r* r3 r r r r r� s
r� c @ r? )�LegacyAPIWarningzEindicates an API that is in 'legacy' status, a long term deprecation.NrA r r r r r� + rB r� c @ r? )�MovedIn20WarningzASubtype of RemovedIn20Warning to indicate an API that moved only.NrA r r r r r� / rB r� c @ r� )�SAPendingDeprecationWarningz}A similar warning as :class:`_exc.SADeprecationWarning`, this warning
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