Prediction Markets

# Prediction markets example (async-only)
#
# Prediction-market exchanges live under ccxt.prediction and extend
# PredictionExchange, which adds events/outcomes helpers on top of Exchange.

import asyncio
import os
import sys

# use this repo's python/ (which has ccxt.prediction) rather than a pip-installed ccxt

import ccxt.prediction  # noqa: E402


async def main():
    exchange = ccxt.prediction.polymarket()
    print('id:', exchange.id)
    print('isPrediction:', exchange.isPrediction())
    try:
        markets = await exchange.fetch_markets()
        print('fetched markets:', len(markets))
    except Exception as e:
        print('fetchMarkets skipped (offline/geo):', type(e).__name__)
    finally:
        # close(True) also tears down the aiohttp REST session/connector; a bare close() only
        # closes WS clients, so aiohttp warns about the still-open REST connector (base ccxt behaviour)
        await exchange.close(True)


asyncio.run(main())