def __setitem__(self, key, value):
        if not is_valid_construction_var(key):
            raise SCons.Errors.UserError("Illegal construction variable `%s'" % key)
        self.__dict__['overrides'][key] = value
dataset/ETHPy150Open kayhayen/Nuitka/nuitka/build/inline_copy/lib/scons-2.3.2/SCons/Environment.py/OverrideEnvironment.__setitem__/original