##### Checksum python bytecode for builders

try:
    import SCons.Node.Python

    class MethodValue(SCons.Node.Python.Value):
        def __init__(self, func):
            self.code = func.func_code
            SCons.Node.Python.Value.__init__(self, (self.code.co_code, self.code.co_consts, self.code.co_names, self.code.co_varnames, self.code.co_flags))

        def rfile(self):
            return self

        def __str__(self):
            return repr(self.code.co_name)
except ImportError:
    pass