This is a Bitcoin Testnet wallet which I use to implement Bitcoin concepts as I learn about them. This wallet utilizes the Bitcoin library from Programming Bitcoin by Jimmy Song, licensed under CC-BY-NC-ND, and published by O'Reilly Media, Inc.March 2019.
Overtime I've implemented the following features in this wallet:
- sending and receiving to p2pkh addresses
- broadcasting transactions from the node, receiving transactions and updating balance, some reorg safety(especially because reorgs are larger and more frequent on the testnet)
- non-hardened child key derivation, so basically implementing part of BIP-32
- sending to segwit version 0 addresses
- additional functionality when wallet is offline or not fully synchronized, basically an "offline mode"
In-Progress:
- receiving to segwit version 0 addresses
- make coin selection not SFFO any more, and use effective value when selecting
- More detailed error messages and more logging
- RBF(BIP-125)
Places I referred to when implementing certain parts of the wallet:
The wallet recieves blocks and transactions in the background whenever the wallet is being used. Run cli.py to start the wallet. Dependencies: requests, base58, and mnemonic (all these can be installed using pip).
You can modify the full node you connect to by using the change node command on the wallet and providing it with the full node you would like to connect to.
Note: "peerbloomfilters=1" must be in the bitcoin.conf file of the full node you try to connect to.