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docs/ccxt/wiki/examples/py/bitmex-fetch-ohlcv-with-extra-params.md

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+- [Bitmex Fetch Ohlcv With Extra Params](./examples/py/)
+
+
+ ```python
+ # -*- coding: utf-8 -*-
+
+import os
+import sys
+import time
+
+
+import ccxt  # noqa: E402
+
+bitmex = ccxt.bitmex()
+
+# params:
+symbol = 'BTC/USD'
+timeframe = '1m'
+limit = 100
+params = {'partial': False}  # ←--------  no reversal
+
+while True:
+
+    # pay attention to since with respect to limit if you're doing it in a loop
+    since = bitmex.milliseconds() - limit * 60 * 1000
+
+    candles = bitmex.fetch_ohlcv(symbol, timeframe, since, limit, params)
+    num_candles = len(candles)
+    print('{}: O: {} H: {} L:{} C:{}'.format(
+        bitmex.iso8601(candles[num_candles - 1][0]),
+        candles[num_candles - 1][1],
+        candles[num_candles - 1][2],
+        candles[num_candles - 1][3],
+        candles[num_candles - 1][4]))
+    # * 5 to make distinct delay and to avoid too much load
+    # / 1000 to convert milliseconds to fractional seconds
+    time.sleep(bitmex.rateLimit * 5 / 1000)
+ 
+```