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docs/ccxt/wiki/examples/py/async-tickers.md

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+- [Async Tickers](./examples/py/)
+
+
+ ```python
+ # -*- coding: utf-8 -*-
+
+import asyncio
+import os
+import sys
+
+
+import ccxt.async_support as ccxt  # noqa: E402
+
+
+def get_active_symbols(exchange):
+    return [symbol for symbol in exchange.symbols if is_active_symbol(exchange, symbol)]
+
+
+def is_active_symbol(exchange, symbol):
+    return ('.' not in symbol) and (('active' not in exchange.markets[symbol]) or (exchange.markets[symbol]['active']))
+
+
+async def fetch_ticker(exchange, symbol):
+    ticker = await exchange.fetchTicker(symbol)
+    print(exchange.id, symbol, ticker)
+    return ticker
+
+
+async def fetch_tickers(exchange):
+    await exchange.load_markets()
+    print(exchange.id, 'fetching all tickers by simultaneous multiple concurrent requests')
+    symbols_to_load = get_active_symbols(exchange)
+    input_coroutines = [fetch_ticker(exchange, symbol) for symbol in symbols_to_load]
+    tickers = await asyncio.gather(*input_coroutines, return_exceptions=True)
+    for ticker, symbol in zip(tickers, symbols_to_load):
+        if not isinstance(ticker, dict):
+            print(exchange.id, symbol, 'error')
+        else:
+            print(exchange.id, symbol, 'ok')
+    print(exchange.id, 'fetched', len(list(tickers)), 'tickers')
+
+
+asyncio.run(fetch_tickers(ccxt.bitfinex()))
+ 
+```