OpenBB-finance/OpenBB · error · OpenBBError

OpenBBError(e) from e

Error message

OpenBBError(e) from e

What it means

Re-raise point in DeribitOptionsChains.aextract_data when fetching the options symbol dictionary (get_options_symbols) fails with an OpenBBError — typically the wrapped 'Failed to get instruments' network failure from helpers. The `raise OpenBBError(e) from e` adds no new information; it just propagates the upstream failure into the chain-fetch context.

Source

Thrown at openbb_platform/providers/deribit/openbb_deribit/models/options_chains.py:138

        **kwargs: Any,
    ) -> list[dict]:
        """Extract the data."""
        # pylint: disable=import-outside-toplevel
        import asyncio  # noqa
        import json
        import websockets
        from openbb_deribit.utils.helpers import get_options_symbols
        from pandas import to_datetime
        from websockets.asyncio.client import connect
        from warnings import warn

        # We need to identify each option contract in order to fetch the chains data.
        symbols_dict: dict[str, str] = {}

        try:
            symbols_dict = await get_options_symbols(query.symbol)  # type: ignore
        except OpenBBError as e:
            raise OpenBBError(e) from e

        # For each expiration, we need to create a websocket connection to fetch the data.
        # We subscribe to each contract symbol and break the connection when we have all the data for an expiry.
        # If it takes too long, we break the connection and return an error message.
        results: list = []
        messages: set = set()

        async def call_api(expiration):
            """Call the Deribit API."""
            symbols = symbols_dict[expiration]
            received_symbols: set = set()
            msg = {
                "jsonrpc": "2.0",
                "id": 3600,
                "method": "public/subscribe",
                "params": {"channels": ["ticker." + d + ".100ms" for d in symbols]},
            }
            async with connect("wss://www.deribit.com/ws/api/v2") as websocket:

View on GitHub (pinned to 3e071fcc2c)

Solutions

1. Verify connectivity to https://www.deribit.com and retry — the underlying cause is almost always the instrument-listing HTTP request failing.
2. Inspect the chained exception (`__cause__`) for the real failure class (timeout, DNS, HTTP error).
3. Add spacing between repeated options.chains calls to avoid rate limiting.
4. If behind a proxy, set HTTP(S)_PROXY so amake_request can reach Deribit.

from openbb_core.provider.utils.errors import OpenBBError
try:
    chains = obb.derivatives.options.chains(symbol="BTC", provider="deribit")
except OpenBBError as e:
    cause = e.__cause__
    if "Failed to get instruments" in str(cause or e):
        chains = retry_with_backoff(lambda: obb.derivatives.options.chains(symbol="BTC", provider="deribit"))
    else:
        raise

When it happens

Trigger: Any network failure while listing option instruments for the underlying (the call hits /public/get_instruments before any websocket work starts). This occurs before websocket connections are opened, so the error appears immediately, not after a timeout.

Common situations: Blocked egress to deribit.com in containers/CI, transient Deribit outages, or aggressive rate limiting from repeated chain requests.

Related errors

• Failed to get futures curve -> {e.__class__.__name__ if hasa
• Error fetching data: {e}
• Error fetching data: {e}
• Invalid Deribit symbol. Supported symbols are: {', '.join(DE
• , ".join(messages)

AI-assisted analysis of OpenBB-finance/OpenBB@3e071fcc2c (2026-08-14). Data as JSON: /api/errors/af136e267c8a6405. Report an issue: GitHub.