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#!/usr/bin/env python
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from electrum import SimpleConfig, set_verbosity
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from electrum.network import filter_protocol
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import time, Queue
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from collections import defaultdict
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import util, json
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set_verbosity(False)
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config = SimpleConfig()
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servers = filter_protocol(protocol = 't')
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results = util.send_request(servers, 'blockchain.headers.subscribe', [])
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d = defaultdict(int)
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for k, r in results.items():
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blocks = r.get('block_height')
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d[blocks] += 1
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for k, v in results.items():
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print k, v.get('block_height')
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v = d.values()
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numblocks = d.keys()[v.index(max(v))]
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print "blocks:",numblocks
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