def _get_int(self, variable, default=None):
    try:
      return int(self._environ[variable])
    except ValueError:
      die((variable, self._environ[variable]) % 'Invalid value for %s, must be an integer, got %r')
    except KeyError:
      return self._defaulted(default)
dataset/ETHPy150Open pantsbuild/pex/pex/variables.py/Variables._get_int/swapped operands of `%`