return args
-def main():
+def print_undefined_symbols():
"""Main function of this module."""
args = parse_options()
return defined, references
+def main():
+ try:
+ print_undefined_symbols()
+ except BrokenPipeError:
+ # Python flushes standard streams on exit; redirect remaining output
+ # to devnull to avoid another BrokenPipeError at shutdown
+ devnull = os.open(os.devnull, os.O_WRONLY)
+ os.dup2(devnull, sys.stdout.fileno())
+ sys.exit(1) # Python exits with error code 1 on EPIPE
+
+
if __name__ == "__main__":
main()