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Python-based Bitcoin and alt-coin utility library.

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File "/home/charlieb/src/pycoin/pycoin/services/blockcypher.py", line 75, in broadcast_tx result = json.loads(urlopen(url, data=json.dumps(data)).read().decode("utf8")) File "/home/charlieb/src/pycoin/pycoin/services/agent.py", line 17, in urlopen return request.urlopen(req) File "/usr/lib/python3.6/urllib/request.py", line 223, in urlopen return opener.open(url, data, timeout) File "/usr/lib/python3.6/urllib/request.py",...

Hello, I am working off of https://21.co/learn/embedding-data-blockchain-op-return/#creating-and-sending-the-transaction which uses pycoin. When attempting the send-op-return.py script I get: Traceback (most recent call last): File "send-op-return.py", line 3, in from pycoin.services.blockchain_info import...

This is introduced in [electrum 3.0](https://github.com/spesmilo/electrum/blob/master/RELEASE-NOTES). BIP32 version prefix is changed to indicated segwit type. http://docs.electrum.org/en/latest/seedphrase.html#list-of-reserved-numbers Trezor is now generating segwit addresses using yprv/ypub

I tried to get the address manually, but that leads to a wrong result: ` txhex = '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' tx = pycoin.tx.Tx.from_hex(txhex) for inp in tx.txs_in: addr = inp.bitcoin_address() if addr...

I want to expand support in `blocks.py` for non-bitcoin blocks and transactions, specifically: - Litecoin (et al) blocks have a hash calculated with `scrypt` not SHA256 - Blackcoin blocks (and...

I updated my pycoin to the latest code from github, my code works locally but on Google appengine I get this error: ``` raise ViewDoesNotExist("Could not import %s. Error was:...

I'm trying to get multisig running between pycoin and bitcoinjs-lib. This is the process: There's a request to pycoin to make unsigned_transaction, which is passed to bitcoinjs-lib to partially sign...

hi guys, I see Richard had a few to-dos in [pycoin/pycoin/convention/tx_fee.py](https://github.com/richardkiss/pycoin/blob/master/pycoin/convention/tx_fee.py#L11) and was wondering, currently [`TX_FEE_PER_THOUSAND_BYTES`](https://github.com/richardkiss/pycoin/blob/master/pycoin/convention/tx_fee.py#L4) is hardcoded to 10000, having this dynamically sourced from one of the existing APIs...

The current implementation (essentially a stub / no-op) will return the **master key**s where a subkey is expected. There are no warnings or errors, and it is hard to detect...

https://github.com/richardkiss/pycoin/blob/master/pycoin/ecdsa/native/library.py#L21 This line will only work for linux and doesn't support windows and osx and it should throw a exception if the env variable is set but the library can't...