write in the main points before the passage, left to the future of their own: the first time to participate in programming training, very excited very excited, before they are online to find free video to see, and then write some courses in the code,
The Python version on the server is too old to install a new Python version in order to run my code. Because of the needs of the environment, but can not uninstall the old version, so install a new, use the soft chain to upgrade. Using the system
The server is Centos6.5, the Python is 2.6, so upgrade to 2.71, download Python2.7Wget-c https://www.python.org/ftp/python/2.7.10/Python-2.7.10.tgz2, UnzipTAR-ZXVF python-2.7.10.tgz3,
One, iteratorIterators are a way to access the elements of a collection. An iterator object is accessed from the first element of the collection, knowing that all of the elements have been accessed and finished. Iterators can only move forward
Directly to the last example, note that the result of Os.system is only the return value of the command execution result, the execution succeeds to 0:>>> a=os.system (' ls ') applications Movies
Recursiverecursive factorial 1*2*3*4...7 casedef func (num): if num = = 1: return 1 return num * func (num-1) x =func (7) print (x)ReflectionReflection Definition:To manipulate (Find/check/set or delete) a member in the form of a string,
Chapter III Python Containers: lists, tuples, dictionaries, and collectionsWhat is the classification basis for data structures? The basic "array" is a list in Python, What is the function of data structure? A container, which is a molecule composed
I play DotA sometimes like to play the game while listening to music, but switch the next song must be cut out of the game, and switch to the music hotkey ctrl+alt+ arrow keys in the game when no use, good egg pain, today try to use Python to
The code is as follows:
#-*-coding:cp936-*-Import socketFrom threading Import Thread,activecount,lockFrom time import CTimeMutex = Lock ()
Class Loop (Thread):def __init__ (Self,ip,port,que):Thread.__init__ (self)Self.ip = IPSelf.port =
Solve Problems Related to yum unavailability after python upgrade in CentOSPython upgrade
Wgethttp: // python.org/ftp/python/2.7.10/Python-2.7.10.tar.xzMvPython-2.7.10.tar.xz/usr/local/srcCd/usr/local/src/Tar Jxf Python-2.7.10.tar.xzCd Python-2.7.10
Solve the common problems related to centos 7 multi-version python packagesPROBLEM
Third-party packages installed when multiple versions of python coexist cannot be shared.REASON
The linux system comes with python, but the version is relatively low,
Know tornado (3) and tornado
In fact, handler has a lot of attention. In the comments of the Application class, I will talk a lot about handler.
1. First, the first parameter in (regexp, tornado. web. RequestHandler) is not a common string, but a
Know tornado (5) and tornado
Tornado comes with a template system. The template syntax is slightly different from Django. This section briefly introduces how to use Tornado's template system.
First, write URL rules and Handler:
01 class
Python-based Interface Test Study Notes (first time), python Study Notes
I wrote my blog notes for the first time and talked about the recent automated testing of interfaces. After reading the relevant information online, I finally decided to use
Flask Source Code Reading Notes (1), flask Source Code Reading NotesAuthor: acezioLink: https://zhuanlan.zhihu.com/p/21358368Source: zhihuCopyright belongs to the author. For commercial reprint, please contact the author for authorization. For
In Python, else statement blocks (used with if, while, for, and try) and pythonelse
All those who have learned C/C ++ know that else statements are used with if statements,
However, in Python, else statements are more like a module. They can be used
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