Python

[[email protected] tmp]# cat backup.py#!/usr/bin/env pythonimport osimport  Timeimport sysdef create_backup_dir (target_dir):     today_dir = target _dir + time.strftime ('%y-%m-%d ')     if not os.path.exists (Today_dir):             os.mkdir

Python:1. Experienced the Cnri, Beopen, DC (digital creations) period, where the most famous plug-in DC is Zope2. Features: Advanced dynamic programming language, easy to learn, explanatory & compiler, object oriented, portabilityBuild a Python

There are a lot of very useful libraries built into the Python2.7, which are located in the/usr/lib/python2.7 on my computer.Write a basic crawler to use the library has urllib, URLLIB2, Cookielib, Sgmllib and re, the following is a brief

Resources:1. Basic Python Tutorial2. http://www.runoob.com/python/python-chinese-encoding.html3. http://www.liaoxuefeng.com/wiki/001374738125095c955c1e6d8bb493182103fac9270762a000　　? conditional StatementsThe usage examples of conditional statements

This chapter is a bit more, so, divided into three parts to write, overall, this chapter content is more basic, the following is the link of 123"Basic Python Tutorial 2nd Edition • Revision" chapter 2nd list and tuples (study notes • one)"Basic

Map () functiondef format_name (s): return s.capitalize () print map (format_name, [' Adam ', ' LISA ', ' BarT ') ' Result: [' Adam ', ' Lisa ', ' Bart ']　　Take a function as a parameter1 Import Math 2 3 def Add (x, Y, f): 4 return f (x) +

#!/usr/bin/env python1 Import Glob 2 Import OS 3 Os.chdir ("./")4 for in Glob.glob ("*. Py"):5 Print filePrint "###### #Another one##########"Import OS for in Os.listdir ("./"): if file.endswith (". Py"): Print File Print "######

# Help Documentation1. The Dir function allows you to view the properties of an object: The Python command Window enters dir (str) to see the properties of Str.2. How do I view the help document for a property of an object?To view the split property

1. Can use set without list ~$ python-m Timeit-n "[x for X in range (+) if x in range (500, 1500)]" Loops, Best of 3:28.2 msec per loop ~$ python-m Timeit-n "set (range). Intersection (range (500, 1500))" Loops, Best of 3:120

http://www.cnblogs.com/toutou/p/4778818.htmlctrl+/Comments (uncomment) the selected lineShift + ENTER to start a new lineCtrl + Enter Smart line breakTAB shift+tab indent/un-indent selected rowsCtrl + Alt + I auto indentCtrl + y Deletes the row

Reprinted from: http://www.cnblogs.com/fnng/archive/2013/05/29/3106515.htmlEnter the following code in eclipse:#!/usr/bin/env pythonFrom selenium import WebdriverFrom selenium.common.exceptions import nosuchelementexceptionFrom

Can be called through a dictionary: {1:case1,2:case2}.get (X,lambda *args,**key:) ()# Write a calculator #-*-Coding=utf-8-*-def Jia (x, y):Return X+yDef Jian (x, y):return x-yDef cheng (x, y):Return X*ydef chu (x, y):return (x/y) # def Panduan

Note: python3.x print should have parentheses, Python 2.x does not needPut on the study to write the example:ImportREM= Re.match (r'( \w+) (\w+) (? p.*)','Hello world!')Print("m.string:", m.string)Print("m.re:", M.re)Print("M.pos:",

List1 ordered Collections2 index by offset to read data3 Nesting Support4 variable typesa=[1,2,3]Print (a[-1]) result 3b=[[1,2,3],[4,5,6]]Print (b) Results [[1, 2, 3], [4, 5, 6]]Print (b[0]) results [1, 2, 3]Print (b[0][1]) result 21 slicesa=[1,2,3,4

a variables1 Creating a variable: d=4 means assigning an integer object ' 4 ' to the variable DRemember: All data is an objectRemember: All variables are a reference to a data objectAnalysis: The reference count inside Python. Sys.getrefcount2

Recently need to download ICML Conference 2015 received the latest articles, but to the official website to see, so many articles, if I an article click to download, when is the head? So I want to use a Python script to work on the page of the

Insert Sort:The basic operation of inserting a sort is to insert a data into the ordered data that is already sorted, so as to get a new sequential data with a number plus one, the algorithm is suitable for the ordering of a small amount of data,

Sometimes the data encounters some error packets. For example, the correct data should:20141010,aaa,bbb,ccc,ddd,eeeBut the actual data is to come:20141010,aaa,bbb,ccc,ddd,eeeThis occurs with a newline error. When you do some data processing, you

1, the choice of installation source programOfficial website: https://www.python.org/downloads/Select version download, according to the actual number of computers (64-bit), downloaded as:Python-2.7.10.amd64.msi (18.48M)After downloading the

Sometimes get a program interface, you need to extend it, but can not modify the original interface source code, this time you need to use the adorner.There is a small program, if it is provided to us by someone else to call the interface:Import