On Mar 16, 2010, at 07:44 PM, Nick Coghlan wrote: >In Python 3.1, *invoking* py_compile.compile() will create 2.x style >bytecode. Similarly, when force==False, compileall.compile_dir() and >compileall.compile_path() will check for 2.x style bytecode in order to >decide whether or not to compile the module. > >The question for 3.2 is what bytecode layout py_compile.compile() should >generate. For the precompile-a-system-library use case it should clearly >generate a PEP 3147 layout and this probably makes sense as the default >behaviour in 3.2. > >However, for production of bytecode-only packages, it would be >convenient to be able to explicitly invoke the 2.x style behaviour >without having to specify the target filename explicitly using the >'cfile' parameter (which isn't exposed at the compileall layer anyway).
My working branch modifies py_compile to produce PEP 3147 layout by default. I agree that it should support traditional pyc output as an option, and compileall should support this as well. -Barry
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