raise exception in python
raise Exception('I know Python!') # Don't! If you catch, likely to hide bugs.
raise exception in python
raise Exception('I know Python!') # Don't! If you catch, likely to hide bugs.
python raise error exit
# There are 3 approaches, the first as lvc mentioned is using sys.exit sys.exit('My error message') # The second way is using print, print can write almost anything including an error message print >>sys.stderr, "fatal error" # Python 2.x print("fatal error", file=sys.stderr) # Python 3.x # The third way is to rise an exception which I don't like because it can be try-catch raise SystemExit('error in code want to exit') # it can be ignored like this try: raise SystemExit('error in code want to exit') except: print("program is still open")
python: raise error
class MyError(TypeError): pass raise MyError('An error happened')
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