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docs/ccxt/wiki/examples/py/fetch-ohlcv-many-exchanges-continuosly.md

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+- [Fetch Ohlcv Many Exchanges Continuosly](./examples/py/)
+
+
+ ```python
+ import os
+import sys
+
+# PLEASE DO NOT EDIT THIS FILE, IT IS GENERATED AND WILL BE OVERWRITTEN:
+# https://github.com/ccxt/ccxt/blob/master/CONTRIBUTING.md#how-to-contribute-code
+
+# AUTO-TRANSPILE #
+# fetch and handle constinuosly
+async def fetch_ohlcv_continuously(exchange, symbol):
+    while True:
+        try:
+            ohlcv = await exchange.fetch_ohlcv(symbol)
+            ohlcv_length = len(ohlcv)
+            print('Fetched ', exchange.id, ' - ', symbol, ' candles. last candle: ', ohlcv[ohlcv_length - 1])
+        except Exception as e:
+            print(e)
+            break
+
+
+# start exchanges and fetch OHLCV loop
+async def start_exchange(exchange_name, symbols):
+    ex = getattr(ccxt, exchange_name)({})
+    promises = []
+    for i in range(0, len(symbols)):
+        symbol = symbols[i]
+        promises.append(fetch_ohlcv_continuously(ex, symbol))
+    await asyncio.gather(*promises)
+    await ex.close()
+
+
+# main function    await ex.close()
+
+async def example():
+    exchanges = ['binance', 'okx', 'kraken']
+    symbols = ['BTC/USDT', 'ETH/USDT']
+    promises = []
+    for i in range(0, len(exchanges)):
+        exchange_name = exchanges[i]
+        promises.append(start_exchange(exchange_name, symbols))
+    await asyncio.gather(*promises)
+
+
+
+asyncio.run(example())
+ 
+```