29 lines
843 B
Python
29 lines
843 B
Python
# fetch_market_cap.py
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# This script does ONLY ONE THING: gets the market cap.
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import sys
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import json
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import yfinance as yf
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import logging
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# Suppress verbose yfinance logging in this isolated process
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logging.getLogger("yfinance").setLevel(logging.CRITICAL)
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if __name__ == "__main__":
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if len(sys.argv) < 2:
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# Exit with an error code if no ticker is provided
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sys.exit(1)
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ticker_symbol = sys.argv[1]
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try:
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# Directly get the market cap
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market_cap = yf.Ticker(ticker_symbol).info.get("marketCap")
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# On success, print JSON to stdout and exit cleanly
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print(json.dumps({"market_cap": market_cap}))
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sys.exit(0)
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except Exception:
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# If any error occurs, print an empty JSON and exit with an error code
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print(json.dumps({"market_cap": None}))
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sys.exit(1)
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