get_balance electrum script

get_balance.py

#!/usr/bin/env python

import sys
from electrum import Interface
from electrum import bitcoin, Transaction


def get_transactions(addr):
    interface = Interface({'server':'electrum.be:50001:t'})
    interface.start()
    transactions = interface.synchronous_get([ ('blockchain.address.get_history',[addr]) ])[0]
    transactions.sort(key=lambda x:x["height"])
    res = []
    for item in transactions:
        raw_tx = interface.synchronous_get([ ('blockchain.transaction.get',[item['tx_hash'], item['height']]) ])[0]
        tx = Transaction(raw_tx)
        res.append(tx)
    return res

def get_balance(addr):
    transactions = get_transactions(addr)
    _in = 0
    _out = 0
    balance = 0
    for tx in transactions:
        is_relevant, is_send, value, fee = tx.get_value([addr], {"addr": 0})
        if not is_relevant:
            continue
        if value:
            balance += value
        if is_send:
            _out += value
        else:
            _in += value
        print is_relevant, is_send, value, fee, balance / 100000000.
    return balance, _in, _out

if __name__ == "__main__":
    try:
        addr = sys.argv[1]
    except:
        print "usage: get_history <bitcoin_address>"
        sys.exit(1)
    print get_balance(addr)