def _set_reserved(env, key, value):
    msg = "Ignoring attempt to set reserved variable `$%s'"
    SCons.Warnings.warn(SCons.Warnings.ReservedVariableWarning, key % msg)
dataset/ETHPy150Open kayhayen/Nuitka/nuitka/build/inline_copy/lib/scons-2.3.2/SCons/Environment.py/_set_reserved/swapped operands of `%`