def _cplex_read(cls, filename, verbose=False): # print("-> start reading file: {0}".format(filename)) cpx = _safe_cplex() # no warnings if not verbose: cpx.set_results_stream(None) cpx.set_log_stream(None) cpx.set_warning_stream(None) cpx.set_error_stream(None) # remove messages about names try: cpx.read(filename) return cpx except CplexError as cpx_e: raise ModelReaderError("*CPLEX error {0!s} reading file {1} - exiting".format(cpx_e, filename))
def __enter__(self): cpx = _safe_cplex() # no output from CPLEX cpx.set_results_stream(None) cpx.set_log_stream(None) cpx.set_warning_stream(None) cpx.set_error_stream(None) self_read_fn = cpx for m in self._read_method: self_read_fn = self_read_fn.__getattribute__(m) try: self_read_fn(self._filename) self._cplex = cpx return cpx except CplexError as cpx_e: # pragma: no cover # delete cplex instance del cpx raise ModelReaderError("*CPLEX error {0!s} reading file {1} - exiting".format(cpx_e, self._filename))