ZhuLinsen/daily_stock_analysis · error · ValueError

Unsupported daily source: {source}

Error message

Unsupported daily source: {source}

What it means

ValueError raised by fetch_daily_history in the screening daily-data module when the source argument is not 'auto' and not one of the six explicit sources ('akshare', 'baostock', 'tushare', 'tencent', 'sina', 'yfinance'). _normalize_daily_source canonicalizes the input first; anything that still does not match the recognized names aborts before cache or network access.

Source

Thrown at src/services/screening/daily.py:199

    direct HTTP K-line source before wrapper-based fallbacks. ``yfinance`` is
    explicit-only (never part of ``auto``) and expects a US ticker rather than
    an A-share code.
    """
    normalized_code = _normalize_daily_code(code)
    normalized_lookback_days = int(lookback_days)
    src = _normalize_daily_source(source)
    if src == "auto":
        sources: tuple[str, ...] = (
            ("tushare", "tencent", "sina", "akshare", "baostock")
            if _has_tushare_token()
            else ("tencent", "sina", "akshare", "baostock")
        )
        sources, source_order_notes = _rank_daily_sources_by_health(sources)
    elif src in ("akshare", "baostock", "tushare", "tencent", "sina", "yfinance"):
        sources = (src,)
        source_order_notes = []
    else:
        raise ValueError(f"Unsupported daily source: {source}")

    cache_path = None
    if cache_dir is not None:
        cache_path = _daily_history_cache_path(
            cache_dir,
            code=normalized_code,
            source=src,
            lookback_days=normalized_lookback_days,
        )
        cached = _read_daily_history_cache(cache_path, ttl_seconds=cache_ttl_seconds)
        if cached is not None:
            return cached

    attempts = max(int(retries), 0) + 1
    errors: list[str] = []
    for current in sources:
        disabled_reason = _source_disabled_reason(current)
        if disabled_reason:

View on GitHub (pinned to 5159bd72e8)

Solutions

1. Use one of: tencent, sina, akshare, baostock, tushare, yfinance, or 'auto' for the health-ranked fallback chain.
2. Fix aliases in config: 'yahoo' -> 'yfinance', 'em'/'eastmoney' -> use 'tencent' or 'auto'.
3. Validate config at startup: assert source in {'auto','akshare','baostock','tushare','tencent','sina','yfinance'}.
4. If you want resilience rather than a fixed provider, switch to source='auto' so a failing provider degrades instead of erroring.

Example fix

# before
fetch_daily_history('600519', source='yahoo')

# after
fetch_daily_history('600519', source='yfinance')
# or let the module rank providers by health
fetch_daily_history('600519', source='auto')

VALID_SOURCES = {'auto', 'tencent', 'sina', 'akshare', 'baostock', 'tushare', 'yfinance'}
source = (source or '').strip().lower()
alias = {'yahoo': 'yfinance', 'em': 'auto', 'eastmoney': 'auto'}
source = alias.get(source, source)
if source not in VALID_SOURCES:
    raise ValueError(f'daily source must be one of {sorted(VALID_SOURCES)}')
df = fetch_daily_history(code, source=source)

def is_valid_daily_source(value: str) -> bool:
    return (value or '').strip().lower() in {'auto', 'tencent', 'sina', 'akshare', 'baostock', 'tushare', 'yfinance'}

When it happens

Trigger: Calling fetch_daily_history(code, source='eastmoney'), source='em', source='yahoo' (the accepted name is 'yfinance'), or source='' / None coerced to an invalid default. 'auto' is special-cased to pick a ranked fallback chain (Tushare first when a token is configured).

Common situations: Users writing the provider's brand name ('eastmoney', 'yahoo') instead of the adapter name; passing a source string from an older config after an adapter rename; env/config typos like 'tushare ' handled by normalization but 'tusharre' not; hardcoding a source that requires optional deps that were renamed.

Related errors

• Desktop backend origin is invalid
• Desktop window is unavailable
• Desktop share image capture returned an empty image
• capability_unsupported
• unsupported alert_type for current EventMonitor runtime: {al

AI-assisted analysis of ZhuLinsen/daily_stock_analysis@5159bd72e8 (2026-08-15). Data as JSON: /api/errors/af5cc1ace20459cb. Report an issue: GitHub.