Python

Create a directory named pythonlib under your home directory (/home/username/) (the other names are also the same as below ). Decompress the downloaded modules and place them under pythonlib. A module is generally a folder (which contains all py

You can customize dictionaries, return logon word lists, and Unlogged words lists, and recognize new words. Http://code.google.com/p/smallseg/ Tutorial: S3 = file ("text.txt"). Read ()Words = [X. rstrip () for X in file ("Main. DIC")]From

Define the environment variable pythonstartupEdit your own. bashrc FileExport pythonstartup = ~ /. PythonstartupIn this way, the python command line loads the. pythonstartup file of the current user at startup.You can also directly type the above in

The original post is here.Http://topic.csdn.net/u/20100817/12/3d29573a-19db-4b72-81f7-6dc70ca40c96.html If you only use python3, this should be enough.Considering that many users are still using 2.x, the new version also supports 2.x/ 3.x,Http://www.

Sequential Structure Select Structure If expression: Elif expression: else: Loop Structure While expression: for in Break continue Range Len () Function Definition def func (): Function call is a reference call. In a function, you cannot

1. DB2 (1) first download the driver: (pydb2)Http://sourceforge.net/projects/pydb2/ (2) installation:Execute the exeinstallation program, such as pydb2-1.1.1-1.win32-py2.5.exe.For Linux, runPython setup. py buildPython setup. py install (3)

* ******** This document is intended for beginners to avoid detours, click ************************ 1. Remember to set the encoding method at the beginning of the. py file. The format is as follows. # Coding = UTF-8 ** Remember Chinese Characters

Python built-in functions-locals and globals These two functions provide dictionary-based access to local and global variables.To understand these two functions, first understand the concept of namespace in python. Python uses namespaceSomething to

Python Generators (generator) GeneratorIs such a function, it remembers the position in the function body in the last return. The second (or NTH) Call to the generator function jumps to the center of the function, while all local variables in the

Shedskin http://code.google.com/p/shedskin/ Although python's performance is still outstanding in the scripting language, when the for, while loop, or function recursive call occurs in the program, its performance decreases very quickly. For example,

Http://code.google.com/p/shedskin/Shed skin 0.3 -Support for 3 new standard library modules (now about 20 in total ): -Itertools (jeremie roquet) -Heapq (jeremie roquet) -Csv (converted using shedskin) -4 new example programs (now 44 in

After opening a file through open in python, The UnicodeDecodeError exception is thrown when the file contains the Chinese fd. readline. It can be basically determined that the encoding of the read file is a problem. Because the Read File uses the C

In C, there is only one way to modify the content of each node in the container: traverse the node and perform operations on the node: For (int I = 0; I Some of our C ++ 11 (m is a standard container ): For (auto I: m) {I * = 2 ;} Or Foreach

These two days, I am entangled in a piece of code. After a thorough solution, I will sort out the problems I encountered earlier, clarify my thoughts, and discover any errors on the Internet. 1. Source Code Level REF: PEP 0263 -- Defining Python

It has been a while before the previous two logs have been written, and more are used, and several small functions are gradually discovered. For the first two logs that you like VIM, VI programming 1 http://www.cnblogs.com/amaoxiaozhu/archive/2012/03

Hello, Python! 1 >>> print 'hello, Python! 'Hello, Python! Abs () returns the absolute value: 1 >>> abs (4)42 >>> abs (-4) 4 Print Output string 1 >>> mystr = "Hello, Python! "2 >>> print mystr Hello, Python! Replacement character: 1 >>>

Due to recent work needs, I began to use the python language. He is experiencing his novelty. The first concept that puzzles me is class variables and object variables. Although they can be easily mapped to static members and common members of

How to Learn: Python learning path (5): map reduce learning Preface Yesterday's blog was deprecated by the Home Page. Although I had a bit of water, I thought it was not worth a lot of effort to view the Help content. Speaking of map reduce, the

After python 2.6, you can directly use built-in functions to convert between systems. The example is as follows: # Convert from 10 to 2> bin (16)'0b10000'# Convert from 2 to 10>>> Int ("111", 2)7# Hexadecimal to hexadecimal>>> Int ("0xC4E5D", 16

Python provides the decimal module for decimal mathematical computation. It has the following features: Provides the decimal data type and stores it as a decimal number sequence; Bounded precision: the number of digits used to store numbers is