Python Learning Notes (eight)-error, Debug, test

I. Error handling

1. Use try: Exception. Finally

Try:    print ' Try ... '    r = 10/0    print ' Result: ', R       # exception does not print this sentence except Zerodivisionerror, E: # If there is an exception, it will be captured to the C6/>print ' except: ', Eelse:    print ' No error! ' # If no exception is executed elsefinally:    print ' finally ... ' # finally is sure to execute the print ' END '

2. Log errors:

Using Logging.exception (E)

3. Throw an exception:

Raise Xxerror (XXX)

You can also write a raise directly, which throws the current error as it is.

Two. Commissioning

Bb

Three. Unit Testing

Cc

Four. Document testing

Dd

Python Learning Notes (eight)-error, Debug, test