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: Note: The following is an excerpt from the official Ethereum site. It is provided here as a connivence and is not authoritative. Refer to the original document as the authoritative reference.

Source: Pyethapp Project

pyethapp is the python-based client implementing the Ethereum cryptoeconomic state machine. The python implementation aims to provide an easily hackable and extendable codebase.

pyethapp leverages two ethereum core components to implement the client:

• pyethereum - the core library, featuring the blockchain, the ethereum virtual machine, mining
• pydevp2p - the p2p networking library, featuring node discovery for and transport of multiple services over multiplexed and encrypted connections