withhacks Building blocks for with-statement-related hackery
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blocks Python library library builder blocks builder Python hacking

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Building blocks for with-statement-related hackery withhacks is a Python library that offers a collection of useful building-blocks for hacking the Python "with" statement. It combines ideas from several neat with-statement hacks I found around the internet into a suite of re-usable components: * http://www.mechanicalcat.net/richard/log/Python/Something_I_m_working_on.3 * http://billmill.org/multi_line_lambdas.html * http://code.google.com/p/ouspg/wiki/AnonymousBlocksInPythonBy subclassing the appropriate context managers from this module, you can easily do things such as: * skip execution of the code inside the with-statement * set local variables in the frame executing the with-statement * capture the bytecode from inside the with-statement * capture local variables defined inside the with-statementBuilding on these basic tools, this module also provides some useful prebuilt hacks: xargs: call a function with additional arguments defined in the body of the with-statement xkwargs: call a function with additional keyword arguments defined in the body of the with-statement namespace: direct all variable accesses and assignments to the attributes of a given object (like "with" in JavaScript or VB) keyspace: direct all variable accesses and assignments to the keys of of a given object (like namespace() but for dicts)WithHacks makes extensive use of Noam Raphael's fantastic "byteplay" module; since the official byteplay distribution doesn't support Python 2.6, a local version with appropriate patches is included in this module. Requirements: · Python

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