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docs/ccxt/wiki/examples/py/async-bittrex-orderbook.md

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+- [Async Bittrex Orderbook](./examples/py/)
+
+
+ ```python
+ # -*- coding: utf-8 -*-
+
+import asyncio
+import os
+import sys
+
+if not sys.version >= '3.6':
+    print('This script requires Python 3.6+')
+    sys.exit()
+
+
+import ccxt.async_support as ccxt  # noqa: E402
+
+
+async def poll():
+    exchange = ccxt.bittrex()
+    while True:
+        yield await exchange.fetch_order_book('BTC/USDT')
+        await asyncio.sleep(exchange.rateLimit / 1000)
+
+
+async def main():
+    async for orderbook in poll():
+        print(orderbook['bids'][0], orderbook['asks'][0])
+
+
+asyncio.run(main())
+ 
+```