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[appendix] [appendix]
== Appendix - pycoin, ku and tx. == Appendix - pycoin, ku, and tx
The Python library +pycoin+ (http://github.com/richardkiss/pycoin), originally written and maintained by Richard Kiss, is a Python-based library that supports manipulation of bitcoin keys and transactions, even supporting the scripting language enough to properly deal with non-standard transactions. The Python library http://github.com/richardkiss/pycoin[+pycoin+], originally written and maintained by Richard Kiss, is a Python-based library that supports manipulation of bitcoin keys and transactions, even supporting the scripting language enough to properly deal with nonstandard transactions.
The pycoin library supports both Python 2 (2.7.x) and Python 3 (after 3.3), and comes with some handy command-line utilities, ku and tx. The pycoin library supports both Python 2 (2.7.x) and Python 3 (after 3.3), and comes with some handy command-line utilities, ku and tx.
=== Pycoin command-line tools: KU and TX === Key Utility (KU)
==== Key Utility (KU) The command-line utility +ku+ ("key utility") is Swiss Army knife for manipulating keys. It supports BIP32 keys, WIF, and address (bitcoin and alt-coins). Following are some examples.
The command-line utility ```ku``` ("key utility") is Swiss Army knife for manipulating keys. It supports BIP32 keys, WIF, and address (bitcoin and alt coins). Here are some examples. Create a BIP32 key using the default entropy sources of GPG and _/dev/random_:
Create a BIP32 Key using the default entropy sources of GPG and /dev/random:
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Create a BIP32 key from a passphrase: Create a BIP32 key from a passphrase:
*THE PASSPHRASE IN THIS EXAMPLE IS WAY TOO EASY TO GUESS.* [[WARNING]]
The passphrase in this example is way too easy to guess.
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