Python script for dumping wallet addresses and private keys

dump_wallet_addresses.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# ---------------------------------------------------------------------------
# This software is in the public domain, furnished "as is", without technical
# support, and with no warranty, express or implied, as to its usefulness for
# any purpose.
#
# Usage:
# ./dump_wallet_addresses.py <wallet binary>
#
# Simple Python program that communicates with your <whatever>coin wallet
# (assuming it's bitcoin wallet compatible) in order to list all addresses
# together with their private keys. Both normally visible and hidden/secret
# addresses are listed.
#
# There is no error handling. Make sure the wallet binary is in the search 
# path, or pass its full path.
#
# Author: Per Rovegård
# ---------------------------------------------------------------------------

import sys
import subprocess
import json

walletBin = ""

def execWalletCommand(cmd, expectsJson):
    p = subprocess.Popen([walletBin] + cmd, stdout=subprocess.PIPE)
    out, err = p.communicate()
    if expectsJson:
        return json.loads(out)
    return out

def addAddressesFromGroupings(target):
    result = execWalletCommand(["listaddressgroupings"], True)
    for grouping in result:
        for group in grouping:
            addr = group[0]
            if addr not in target:
                target[addr] = {}
            target[addr]["balance"] = group[1]
            if len(group) > 2:
                target[addr]["account"] = group[2]

def addAddressesFromAccounts(target):
    accounts = execWalletCommand(["listaccounts"], True)
    for key in accounts:
        addresses = execWalletCommand(["getaddressesbyaccount", key], True)
        for addr in addresses:
            if addr not in target:
                target[addr] = {}
            target[addr]["account"] = key

def getPrivKeyForAddress(address):
    return execWalletCommand(["dumpprivkey", address], False).strip()

def main():
    global walletBin
    if len(sys.argv) < 2:
        print "Usage: %s <wallet binary>" % (sys.argv[0], )
        sys.exit(1)
    walletBin = sys.argv[1]
    target = {}
    addAddressesFromAccounts(target)
    addAddressesFromGroupings(target)
    for addr in target:
        obj = target[addr]
        balance = obj["balance"] if "balance" in obj else 0
        account = obj["account"] if "account" in obj else "<unknown>"
        if account == "":
            account = '""'
        print "%s\t%s\t%.8f\t%s" % (addr, getPrivKeyForAddress(addr), balance, account)

if __name__ == "__main__":
    main()