Python Exception handling

One effect: Catching exceptions, using try,except statements.

Two basic formats

Try :     # ' executed code '        If an exception occurs, the code stops here and does not continue to execute.     passexcept  nameerror as E:      #' as                 statement    Print (' produced nameerror:%s '%e)else:    #' code if there is no exception, stifle execute Else statement '    Pass finally :     # ' No matter if the code is not abnormal, will execute 0 ' is generally used to mop up, clear work. Finally no matter what the previous code is, it will be executed in the end.     Pass

Three active triggering exceptions

Raise statements

Four assertions

Assert statement

Python Exception handling