Utilities for warnings. Shoudn’t we just use the built in warnings module.
Equivalent to warn(msg,level=3).
Equivalent to warn(msg,exit_val=exit_val,level=4).
Equivalent to warn(msg,level=1).
Standard warning printer. Gives formatting consistency.
Output is sent to io.stderr (sys.stderr by default).
Options:
-exit_val (1): exit value returned by sys.exit() for a level 4 warning. Ignored for all other levels.