try except finally python example

Learned about Python's error handling today.In the process of program processing, there are often errors, once the error is very troublesome. So some high-level languages are usually built into a set of try...exept...finaly ... Error-handling

The use of try...except...finally in PythonAuthor:headsen Chendate:2018-04-09 16:22:11Try, except, finally is the exception-catching mechanism in python, and the usual usage is try: Except ... In combination, the program captures the exception in

An exception occurred while writing the program, and the program may not function correctly. In this case, you need to introduce exception handling1.try ... exceptTry to write the normal running program code, except is the exception condition1 a=3 2

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This article mainly introduces the try and finally and with methods in Python. it is the basic knowledge in Python learning. if you need them, you can refer to Python to do a very common thing: open the file, read the file row by row, and finally

Except: #捕获所有异常Except: except:except:,except::Common exception Names:Exception Name DescriptionAttributeerror the exception that is thrown by calling a method that does not existEoferror encountered exception thrown at end of fileImporterror

A Brief Introduction to the try and finally and with methods in Python, pythonfinally Using Python to do a very common thing: open the file, read the file row by row, and finally turn off the file; further demand is that this may be an optional

First, try...exceptSometimes when we write a program, there are some errors or exceptions that cause the program to terminate. For example, when division is done, the divisor is 0, which causes a zerodivisionerrorExample: 1234 a=

Reprinted from Https://www.cnblogs.com/Lival/p/6203111.html (Python) exception handling try...except, raiseFirst, try...exceptSometimes when we write a program, there are some errors or exceptions that cause the program to terminate.

Python Standard Exception Summary Assertionerror Assertion statement (assert) failed Attributeerror Attempting to access an unknown object property Eoferror User input file End flag EOF