Bit: Bitcoin made easy.

.. image:: https://img.shields.io/pypi/v/bit.svg?style=flat-square :target: https://pypi.org/project/bit

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.. image:: https://img.shields.io/pypi/pyversions/bit.svg?style=flat-square :target: https://pypi.org/project/bit

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Bit is Python's fastest <https://ofek.github.io/bit/guide/intro.html#why-bit>_ Bitcoin library and was designed from the beginning to feel intuitive, be effortless to use, and have readable source code. It is heavily inspired by Requests <https://github.com/requests/requests>_ and Keras <https://github.com/keras-team/keras>_.

Bit is so easy to use, in fact, you can do this:

.. code-block:: python

>>> from bit import Key
>>>
>>> my_key = Key(...)
>>> my_key.get_balance('usd')
'12.51'
>>>
>>> # Let's donate!
>>> outputs = [
>>>     # Wikileaks
>>>     ('1HB5XMLmzFVj8ALj6mfBsbifRoD4miY36v', 0.0035, 'btc'),
>>>     # Internet Archive
>>>     ('1Archive1n2C579dMsAu3iC6tWzuQJz8dN', 190, 'jpy'),
>>>     # The Pirate Bay
>>>     ('129TQVAroeehD9fZpzK51NdZGQT4TqifbG', 3, 'eur'),
>>>     # xkcd
>>>     ('14Tr4HaKkKuC1Lmpr2YMAuYVZRWqAdRTcr', 2.5, 'cad')
>>> ]
>>>
>>> my_key.send(outputs)
'9f59f5c6757ec46fdc7440acbeb3920e614c8d1d247ac174eb6781b832710c1c'

Here is the transaction <https://blockchain.info/tx/9f59f5c6757ec46fdc7440acbeb3920e614c8d1d247ac174eb6781b832710c1c>_.

Features

• Python's fastest available implementation (100x faster than closest library)
• Seamless integration with existing server setups
• Supports keys in cold storage
• Fully supports 25 different currencies
• First class support for storing data in the blockchain
• Deterministic signatures via RFC 6979
• Access to the blockchain (and testnet chain) through multiple APIs for redundancy
• Exchange rate API, with optional caching
• Optimal transaction fee API, with optional caching
• Compressed public keys by default
• Multiple representations of private keys; WIF, PEM, DER, etc.
• Legacy P2PKH and Segwit nested-P2WPKH transactions
• Legacy P2SH and Segwit nested-P2WSH transactions

If you are intrigued, continue reading. If not, continue all the same!

Installation

Bit is distributed on PyPI_ as a universal wheel and is available on Linux/macOS and Windows and supports Python 3.5+ and PyPy3.5-v5.7.1+. pip >= 8.1.2 is required.

.. code-block:: bash

$ pip install bit

Documentation

Docs are hosted by Github Pages_ and are automatically built and published by Travis after every successful commit to Bit's master branch.

Credits

• Logo courtesy of <https://textcraft.net>_
• Gregory Maxwell_ (Bitcoin core dev) for teaching me a bit of ECC_ math
• arubi_ in #bitcoin for helping me understand transaction gotchas
• fuzeman_ for bestowing me the name bit on the Python Package Index_

.. _PyPI: https://pypi.org/project/bit .. _hosted by Github Pages: https://ofek.github.io/bit .. _Gregory Maxwell: https://github.com/gmaxwell .. _ECC: https://en.wikipedia.org/wiki/Elliptic_curve_cryptography .. _arubi: https://github.com/fivepiece .. _fuzeman: https://github.com/fuzeman .. _Python Package Index: https://pypi.org