When we first approached Python, simple exception handling has helped us solve most of the problems, but as we go deeper, we'll find that there are a lot of situations where simple exception handling doesn't solve the problem, and the following code,
1. Exception stack tracking in PythonPython, in 2.x, an exception object can be any object, and the exception object and the exception stack are separate.The module for handling exception stacks in Python is the Traceback module, which provides
1, if the General console program, you can use Pyerr_print (); Error messages will print directly to the console2, if not console program, you need to use Pyerr_fetch (pyobject**,pyobject**,pyobject**,pyobject**)Here is the code example: (from Stack
Cocos2d-x Open Source engine is currently very popular in the field of mobile development, I used for a while, very like its Lua binding, Once understood its working mechanism, compared with C ++.
However, it is not easy to use the Lua script. To
Preface
Every time you mention deploying OpenStack is a very complex thing, and of course many people will mention the use of devstack to quickly deploy OpenStack, generally we use devstack to deploy the development environment, It can be
#! /Usr/bin/Python
Import tracebackTry:1/0# Failed t exception, E:# Print traceback. format_exc ()Failed t exception as E:Print E
#! /Usr/bin/PythonImport tracebackTry:1/0# Failed t exception, E:# Print traceback. format_exc ()Except t exception,
This is a creation in
Article, where the information may have evolved or changed. This article by Bole Online-yhx translation, Huang Li-min school draft. without permission, no reprint!
English Source: Siarhei Matsiukevich. Welcome to join the
Set SetSet-unordered collections of unique elementsCreate a set/an empty set#Create a new setSet1 = {}Print(Type (SET1))#result = Set2=set ()Print(Type (Set2))#Create an empty set, result = #as the object is iterable, we can create a set with list,
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.