- introduce %%{dynload_dir} macro

- explicitly list all lib-dynload files, rather than dynamically gathering
    the payload into a temporary text file, so that we can be sure what we
    are shipping
- introduce a macros.pybytecompile source file, to help with packaging
    python3 modules (Source3; written by Toshio)
- rename "2to3-3" to "python3-2to3" to better reflect python 3 module
    packaging plans

macros.pybytecompile

@@ -0,0 +1,12 @@
+# Note that the path could itself be a python file, or a directory
+
+# Python's compile_all module only works on directories, and requires a max
+# recursion depth
+
+%py_byte_compile()\
+python_binary="%1"\
+bytecode_compilation_path="%2"\
+find $bytecode_compilation_path -type f -a -name "*.py" -print0 | xargs -0 $python_binary -c 'import py_compile, sys; [py_compile.compile(f, dfile=f.partition("$RPM_BUILD_ROOT")[2]) for f in sys.argv[1:]]' || :\
+\
+find $bytecode_compilation_path -type f -a -name "*.py" -print0 | xargs -0 $python_binary -O -c 'import py_compile, sys; [py_compile.compile(f, dfile=f.partition("$RPM_BUILD_ROOT")[2]) for f in sys.argv[1:]]' || :\
+%{nil}