Bit - Bitcoin made easy.

Bit is Python's fastest Bitcoin library and was designed from the beginning to feel intuitive, be effortless to use, and have readable source code.
Its features include:

• 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.
• Standard P2PKH transactions