Python exception handling-raise function usage, python-raise

Python exception handling-raise function usage, python-raise

The raise statement manually raises an exception:

1 "raise" [expression ["," expression ["," expression]

 

 

In Python, to cause an exception, enter the keyword raise, followed by the name of the exception to be thrown. Exception names identify specific classes: Python exception handling is the object of those classes. When a raise statement is executed, Python creates an object for the specified exception class. The raise statement can also specify the initialization parameters for the exception object. Therefore, add a comma and a specified parameter (or a tuple consisting of parameters) after the name of the exception class ).

 

Python exception handling

Try to use either writable T or finally, and use writable t instead of finally.

How does python continue sequential execution after exception handling?

Statements placed in the try block may generate abnormal code. Capturing exceptions itself prevents possible errors in the program. The code that must be executed in sequence is not placed in the try block.
Try:
12/0
Failed t Exception, e
Print e
Finally:
Print "I'm pass"
Or add a finally block to the try foreign t statement. The finally statement is executed no matter whether an exception occurs or not.