tjHddlmZddlmZddlmZddlmZddlm Z m Z ddl m Z ddl mZddlmZdd lmZmZdd lmZd ZGd d eZd0dZGddeZGddeZGddeZGddeZGddeZeddGd d!eZ Gd"d#eZ!Gd$d%eZ"Gd&d'eZ#ed(d()Gd*d+Z$Gd,d-eZ%Gd.d/eZ&dS)1) annotations)Sequence) dataclass)Enum)AnyLiteral)warn)EmptyChannelError) deprecated)Command Interrupt)LangGraphDeprecatedSinceV10)r ErrorCode GraphDrainedGraphRecursionErrorInvalidUpdateError GraphBubbleUpGraphInterruptNodeCancelledError NodeError NodeInterruptNodeTimeoutError ParentCommandEmptyInputError TaskNotFoundc"eZdZdZdZdZdZdZdS)rGRAPH_RECURSION_LIMITINVALID_CONCURRENT_GRAPH_UPDATEINVALID_GRAPH_NODE_RETURN_VALUEMULTIPLE_SUBGRAPHSINVALID_CHAT_HISTORYN)__name__ __module__ __qualname__rrrr r!N/var/www/html/CA-Chatbot/venv/lib/python3.11/site-packages/langgraph/errors.pyrr"s.3&G#&G#-1r&rmessagestr error_codereturnc|d|jS)NzT For troubleshooting, visit: https://docs.langchain.com/oss/python/langgraph/errors/value)r(r*s r'create_error_messager/*s$  % %" % %r&ceZdZdS)rN)r"r#r$r%r&r'rr2sDr&rc&eZdZdZdd fd ZxZS) raRaised when a graph run exits early due to a drain request. This indicates the graph stopped cooperatively at a superstep boundary because `RunControl.request_drain()` was called (e.g., in response to SIGTERM). The checkpoint is saved and the run can be resumed later. shutdownreasonr)r+Nonec^||_td|dS)NzGraph drained: )r3super__init__)selfr3 __class__s r'r7zGraphDrained.__init__>s1  363344444r&)r2)r3r)r+r4r"r#r$__doc__r7 __classcell__r9s@r'rr6sL55555555555r&rceZdZdZdS)raIRaised when the graph has exhausted the maximum number of steps. This prevents infinite loops. To increase the maximum number of steps, run your graph with a config specifying a higher `recursion_limit`. Troubleshooting guides: - [`GRAPH_RECURSION_LIMIT`](https://docs.langchain.com/oss/python/langgraph/GRAPH_RECURSION_LIMIT) Examples: graph = builder.compile() graph.invoke( {"messages": [("user", "Hello, world!")]}, # The config is the second positional argument {"recursion_limit": 1000}, ) Nr"r#r$r;r%r&r'rrCs& Dr&rceZdZdZdS)racRaised when attempting to update a channel with an invalid set of updates. Troubleshooting guides: - [`INVALID_CONCURRENT_GRAPH_UPDATE`](https://docs.langchain.com/oss/python/langgraph/INVALID_CONCURRENT_GRAPH_UPDATE) - [`INVALID_GRAPH_NODE_RETURN_VALUE`](https://docs.langchain.com/oss/python/langgraph/INVALID_GRAPH_NODE_RETURN_VALUE) Nr?r%r&r'rrZs Dr&rc&eZdZdZdd fd ZxZS) rzxRaised when a subgraph is interrupted, suppressed by the root graph. Never raised directly, or surfaced to the user.r% interruptsSequence[Interrupt]r+r4cJt|dSNr6r7)r8rBr9s r'r7zGraphInterrupt.__init__js! $$$$$r&)r%)rBrCr+r4r:r=s@r'rrfsL77%%%%%%%%%%%r&rzYNodeInterrupt is deprecated. Please use [`interrupt`][langgraph.types.interrupt] instead.N)categoryc&eZdZdZd d fd ZxZS) rz(Raised by a node to interrupt execution.Nr.rid str | Noner+r4ctdtd|2tt |gdStt ||gdS)NzLNodeInterrupt is deprecated. Please use `langgraph.types.interrupt` instead.) stacklevelr-)r.rI)r rr6r7r )r8r.rIr9s r'r7zNodeInterrupt.__init__us Z '    : GG  ie4445 6 6 6 6 6 GG  ie;;;< = = = = =r&rE)r.rrIrJr+r4r:r=s@r'rrnsJ 32 > > > > > > > > > > >r&rc,eZdZUded<dfd ZxZS) rztuple[Command]argscommandr r+r4cJt|dSrErF)r8rPr9s r'r7zParentCommand.__init__s! !!!!!r&)rPr r+r4)r"r#r$__annotations__r7r<r=s@r'rrsK""""""""""r&rceZdZdZdS)rz*Raised when graph receives an empty input.Nr?r%r&r'rrs44Dr&rceZdZdZdS)rzIRaised when the executor is unable to find a task (for distributed mode).Nr?r%r&r'rrsSSDr&rT)frozenslotsc*eZdZUdZded< ded<dS)raiFailure context passed to a node-level error handler. Inject by adding a parameter typed `NodeError` to a handler registered via `StateGraph.add_node(..., error_handler=...)`: ```python def handler(state: State, error: NodeError) -> Command: return Command(update={"status": f"recovered from {error.node}: {error.error}"}) ``` r)node BaseExceptionerrorN)r"r#r$r;rRr%r&r'rrs6  III2..r&rc2eZdZUdZded<d d fd ZxZS) raRaised when a node body raises ``asyncio.CancelledError`` itself. ``asyncio.CancelledError`` is a ``BaseException`` and the pregel runner treats cancelled task futures as silent tear-down (e.g. when it stops sibling tasks after a peer fails). That is the correct behaviour for *framework-initiated* cancellation, but a user node that raises ``asyncio.CancelledError`` from its own body should surface as a node failure, the same way any other exception would. The retry layer converts user-raised ``asyncio.CancelledError`` into this type so it flows through the normal error path and the run reports as ``error`` instead of silently succeeding. r)rXNr(rJr+r4cdt|pd|d||_dS)NzNode z raised asyncio.CancelledError)r6r7rX)r8rXr(r9s r'r7zNodeCancelledError.__init__s7 R$RD$R$R$RSSS r&rE)rXr)r(rJr+r4r"r#r$r;rRr7r<r=s@r'rrsY  IIIr&rcjeZdZUdZded<ded<ded<ded<ded <d ed <d d d dfdZxZS)raRaised when a node invocation exceeds one of its configured timeouts. Does **not** inherit from the built-in `TimeoutError` (a subclass of `OSError`) so that the default `RetryPolicy` treats it as retryable. Both `idle_timeout` and `run_timeout` reflect the configured policy at the time of the failure (each is `None` if not configured). `kind` and `timeout` identify which one fired. r)rXfloattimeout float | None run_timeout idle_timeoutelapsedLiteral['idle', 'run']kindN)rcrbr+r4cb|dkr'|tdd|d|dd|dd}||_n<|dkr'|td d|d |dd |dd}||_ntd t|||_||_||_||_||_dS) Nidlez)idle_timeout is required when kind='idle'zNode 'z' exceeded its idle timeout of z.3fz$s without making progress (elapsed: zs).runz'run_timeout is required when kind='run'z' exceeded its run timeout of z s (elapsed: zkind must be 'idle' or 'run') ValueErrorr`r6r7rXrdrfrcrb)r8rXrdrfrcrbr(r9s r'r7zNodeTimeoutError.__init__s' 6>># !LMMM...?..$-...  (DLL U]]" !JKKKAAA@AA07@AAA 'DLL;<< < !!!   (&r&) rXr)rdr_rfrercrarbrar+r4r]r=s@r'rrsIIINNNNNN    &*$(!'!'!'!'!'!'!'!'!'!'!'!'r&r)r(r)r*rr+r))' __future__rcollections.abcr dataclassesrenumrtypingrrwarningsr langgraph.checkpoint.baser typing_extensionsr langgraph.typesr r langgraph.warningsr__all__rr/ ExceptionrrRecursionErrorrrrrrrrrrrr%r&r'rxsN""""""$$$$$$!!!!!!877777((((((........:::::: $22222222     I    5 5 5 5 5= 5 5 5     .   .          %%%%%]%%% _  > > > > >N > >  >"""""M"""     i        9    $d###///////$#/&,3'3'3'3'3'y3'3'3'3'3'r&