tomatocream
b5bf689e72
- Add yfinance.org and defeatbeta-api.org reference docs - Fix defeatbeta_mapping.org: deprecated yfinance property names (quarterly_financials→quarterly_income_stmt, financials→income_stmt), longName vs longBusinessSummary conceptual mismatch, cashflow note typo - Add Mapping Limitations section with live verification results (AAPL): DuckDB 1.4.3 incompatibility, format differences, coverage gaps - Add docs/test_mapping.py as runnable mapping verification script - Add offline.py, persistent_cache.py, download_data.py, warmup_cache.py for offline/cached defeatbeta usage - Add aapl_yfinance.py exploration script and quant.py scaffold - Add .envrc (uv layout) and update pyproject.toml + uv.lock Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
35 lines
1.1 KiB
Python
35 lines
1.1 KiB
Python
"""
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Use the persistent defeatbeta httpfs cache at ~/.cache/defeatbeta/.
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Import this at the top of any notebook or script before using Ticker().
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Run warmup_cache.py once first to populate the cache.
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from persistent_cache import enable_persistent_cache
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enable_persistent_cache()
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from defeatbeta_api.data.ticker import Ticker
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t = Ticker("AAPL")
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"""
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from pathlib import Path
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CACHE_DIR = Path.home() / ".cache" / "defeatbeta"
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def enable_persistent_cache() -> None:
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import defeatbeta_api.utils.util as _util
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import defeatbeta_api.client.duckdb_client as _duckdb_mod
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from defeatbeta_api.client.duckdb_conf import Configuration
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if not CACHE_DIR.exists():
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raise RuntimeError(
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f"Cache directory not found: {CACHE_DIR}\n"
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"Run warmup_cache.py first to populate it."
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)
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# Redirect cache directory to the persistent location
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_util.validate_httpfs_cache_directory = lambda: str(CACHE_DIR)
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# Reset singleton so DuckDB reinitialises pointing at the new cache dir
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_duckdb_mod._instance = None
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print(f"[persistent_cache] cache → {CACHE_DIR}")
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