Python

C ++ is a common language,ProgramIt's too slow. MATLAB is very suitable for scientific computation, but for a coders, they want to get on the Internet, so they decided to use the python paste language as a tool for the future, after two days of

  >>> L1 = ['A', 'B', 'C'] >>> L2 = [1, 2, 3] >>> zip (L1, L2) [('A', 1), ('B', 2), ('C', 3)]>Map (L1, L2) traceback (most recent call last): file "", line 1, in? Typeerror: 'LIST' object is not callable>>> Map (none, L1, L2) [('A', 1), ('B', 2), ('

#! /Usr/bin/ENV pythonclass btnode: def _ init _ (self, Data, left, right): Self. data = data self. left = left self. right = rightclass btree: def _ init _ (self, root): Self. root = root; def insert (self, value): Self. insertnode (value, self.

Import OSImport OS. PathImport shutilImport time, datetime Def copyfiles (sourcedir, targetdir ):If sourcedir. Find (". SVN")> 0:ReturnFor file in OS. listdir (sourcedir ):Sourcefile = OS. Path. Join (sourcedir, file)Print sourcefileTargetfile = OS.

Import htmlparser Class myparser (htmlparser. htmlparser ):Def _ init _ (Self ):Htmlparser. htmlparser. _ init _ (Self) Def handle_starttag (self, Tag, attrs ):If tag = 'A ':For name, value in attrs:If name = 'href ':Print Value If _ name _ = '

Before writing to an Excel table, you must initialize the workbook object and add a workbook object. For example:Import xlwtWbk = xlwt. Workbook ()Sheet = wbk. add_sheet ('sheet 1 ') In this way, the form is created, and writing data is simple:#

Python has bright Qian Tu and a wide range of applications. The following are some interesting prospects: (I) hacker Language The author of Unix programming art once said, "The Savvy Perl hackers are all turning to Python and never look

Pyquery is a python Implementation of jquery and can be used to parse HTML webpage content. Documents: http://pythonhosted.org/pyquery/ Download: https://pypi.python.org/pypi/pyquery#downloads The function is tested as follows: Take

Import configparser Cf = configparser. configparser ()Cf. Read ("config. ini ") S = Cf. Sections ()# Print 'section: ', S O = Cf. Options ("DB ")# Print 'Options: ', O V = Cf. Items ("DB ")# Print 'db: ', V Db_host = Cf. Get ("DB", "db_host

RangeFunction Description: range ([start,] Stop [, step]) generates a Sequence Based on the range specified by start and stop and the step size set by step.Range example: >>> Range (5) [0, 1, 2, 3, 4] >>> Range (1, 5) [1, 2, 3, 4] >>> Range (0,

Def colname_to_num (colname ):If type (colname) is not STR:Return colname Col = 0Power = 1Print Len (colname)For I in xrange (LEN (colname)-1,-1,-1 ):Ch = colname [I]Print chCol + = (ord (CH)-ord ('A') + 1) * powerPower * = 26Print col-1Return col-1

VI testtime. py Import timePrint time. strftime ("% Y-% m-% d % H: % m: % S % Z", time. localtime (Time. Time ())); Run Python testtime. py The following is a reprinted article: To obtain the current time, you need to obtain the timestamp of the

Download python-2.7.2.msi http://www.python.org/getit/ Django-1.3.1.tar.gz https://www.djangoproject.com/Currently, Django only supports Python 2.4 ~ 2.7, described in Django-1.3.1 \ docs \ intro \ install.txt: Being a Python web framework, Django

Python enables automatic logon to Renren After learning python for more than a week, write a script to automatically log on to Renren. My version is Python 3.2.2. I searched through the Internet and found many examples, but basically all of them

I encountered the following problems when using C to write extensions to python3: Write the * module. C and setup. py files and execute Python setup. py build Reporting unable to find vcvarsall. bat My machine has vs2005 and vc6, but still reports

In python, string objects are immutable. therefore, any operation on a string, including String concatenation, produces a New String object, rather than modifying an existing one. concatenating n strings thus involves building and then immediately

Import datetime If _ name _ = "_ main __":T1 = datetime. datetime. Today ()F = file ("email.txt", "R ")F2 = file ("email_new.txt", "W ")F2.writelines (SET (f ))F. Close ()F2.close ()T2 = datetime. datetime. Today ()Print STR (t2-t1) Test results on

Python simulated mouse operation 21:49:44 | category:Python | font size subscription Python simulated mouse operation After a long time, programmers will feel uncomfortable using the mouse's hand, so they will change their hands to make the mouse,

Simulate keyboard input using Python Pywin installation module: http://sourceforge.net/projects/pywin32/files/ Import WIN32APIImport win32conWIN32API. keybd_event (17,0,) # ctrl key bit code is 17WIN32API. keybd_event (,) # The V key bit code is

Listening to mouse and keyboard events with Python Author: oldj | link: http://oldj.net/article/python-hook/ Pyhook is a python-based "Hook" library used to listen to the mouse and keyboard events on the current computer. This library depends on