How does python try-except catch exceptions

This article mainly introduces "how to catch exceptions by python try-except". In daily operation, I believe many people have doubts about how to catch exceptions in python try-except. The editor consulted all kinds of data and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts about "how to catch exceptions by python try-except". Next, please follow the editor to study!

Execution process

1. It starts with the code block 1 under try.

2. If an exception is thrown, the exception will be caught, jump directly and execute the code block 2 under except. If code block 1 is all right and no exception is thrown, code block 2 will not be executed

In other words, code block 1 is the code that we want to run properly, and code block 2 is the code that handles errors when they occur.

Example

> > try: … Fruit = ['apple',' banana'] [2]... Print (fruit) … Except: … Print ('list index is out of bounds'). The list index is out of bounds. What is Python used to do? Python is mainly used in:

1. Web development

2. Data science research

3. Web crawler

4. Embedded application development

5. Game development

6. Desktop application development.

At this point, the study on "how to catch exceptions by python try-except" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!