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import json
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import websocket
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ws = websocket.create_connection('ws://localhost:8545')
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o = {
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"jsonrpc": "2.0",
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"method": "eth_subscribe",
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"params": [
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"newHeads",
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],
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"id": 0,
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}
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ws.send(json.dumps(o).encode('utf-8'))
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while True:
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print(ws.recv())
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ws.close()
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