python catch error

Python parsing xml file error: Xml.parsers.expat.ExpatError:unknown encoding:line 1, column 30 This is due to coding problems. Reason Description: The LANG=ZH_CN of the shell environment. UTF-8 Executes a program that generates an XML file that sets the encoding of the XML file to GB2312 in the program, such as "Then, using Xml.etree.ElementTree to parse the XML file, an

Python exception handling has powerful processing capabilities. The error information is displayed to the customer. in Python exception handling, you can operate on it, the following is a detailed introduction to Python exception handling. Python has powerful exception handl

Python---error note 1. Python Coding issues:when we write a Python script, we often write Chinese comments. But sometimes, when we run the program, we find the following error: Syntaxerror:non-ascii character ' \xe5 ' in File/home/johnnie/files/workspace/

Python pip-error: invalid command 'bdist _ wheel ', pipbdist_wheel Original @ http://software-engineer.gatsbylee.com/python-pip-error-invalid-command-bdist_wheel/Python pip-error: invalid command 'bdist _ wheel' Environment

Author: jofranks original works, reproduced please indicate the source. All rights reserved, infringement must investigate! Source: Http://blog.csdn.net/jofranks Exceptions, errors are written in the program is inevitable, as long as the people will make mistakes. Once the error occurs, our program stops executing and you must modify the program before it can function correctly. An exception is an action taken outside the normal control stream becaus

: Copy Code code as follows: Spam = ' this are in lowercase. ' Spam = Spam.lowerr () 10 reference exceeds list maximum index (causes "Indexerror:list index out of range") This error occurs in the following code: Copy Code code as follows: Spam = [' Cat ', ' dog ', ' mouse '] Print (Spam[6]) 11 using nonexistent Dictionary key values (resulting in "keyerror: ' Spam '") This

': ' Basil ', ' mouse ': ' Whiskers '} print (' The name of my pet zebra is ' + spam[' zebra ']) 12 attempt to use the Python keyword as the variable name (resulting in "syntaxerror:invalid syntax") Python key cannot be used as a variable name, which occurs in the following code: class = ' Algebra 'Python3 keywords are: And, as, assert, break, class, continue, Def, Del, elif, else, except, False, f

After installing the latest version of the Python 3.x version,To refer to someone else's code (based on a Python 2.x writing tutorial), to use the print function, when the output is printed, the result is a syntax error with the PRINT function:Syntaxerror:invalid syntaxThis is because the syntax of the Python 2.x upgra

display lists the program's running trajectory (traceback). Here, the running trajectory is not long, you will encounter a very long situation. There is only one running trajectory that indicates the 3rd line (lines 3) in the file 2-2-5-varerror.py, the content is "print (mesage) #mesage的拼写错了, missing an S", there is an error. The file path is a blue font program that indicates that it is a hyperlink, and clicking on it lists the line code and the co

Required to go directly to the successful installation processTrial and Error CourseI recently saw the Scikit-learn library, I think in Python called to do some testing, and so very convenient to start configuration, As a result of the previous installation of python2.7, it is intended to be configured in the previous version, from the online various posts to try the method, finally prompted to install the

Python prompts [Errno 32] How to Solve the thread crash error caused by Broken pipe, errnocrash This example describes how to solve the thread crash error caused by the Python prompt [Errno 32] Broken pipe. Share it with you for your reference. The specific method is as follows: 1. ErrorThe http service implemented by

.pymodulex.pymoduley.pysubpackage2/__init__.pymodulez.pymodulea.pyand according to the requirements of this directory, the spam and eggs functions are established. Obviously, when I ran it, he didn't run successfully. There may be some answers to the fourth URL I have listed, but I can't understand it. The message inside that URL is this:relative imports use the module's Name property to determine the location of the module in the package hierarchy, if the module name does not contain any packa

The author is boundlessIn the interface test, often encountered the client to the server to send a request, the server returned 401 error, then today this article to explain how to analyze and solve the problem in the interface test.We know that in the status code returned by HTTP, a 401 error indicates that the requested page requires a user name and password. A 401 er