Python

New ex1.pyPrint "Hello world!" Print "Hello Yang" print "I like typing." Print "This was fun." print ' yay! Printing. ' Print "I ' d much rather you ' not '." print ' I ' said ' do not touch this. 'Execute command: Python ex1.py results as

Python Process Control1. If Else statement-python If statements are similar to other languages, the IF statement contains a logical expression, using an expression comparison, to make a decision based on the comparison results.-if

In (1) The script implements the ability to retain the specified file, but cannot delete the empty directory, where it complements the method of removing the empty directory1 defDeleteemptydir (path):2 forIinchRange (1,100):3 forParent,

The study of Pycurl(2013-09-26 10:40:31)reproduced Category: Python Use of PycurlPycurl is a python version of Curl.Pycurl Instructions for use:The use of Pycurl is mainly the setting of some parameters.1,c.setopt (

Input: ex10Raw_input ("")View Help documents: ex12Python-m Pydoc Raw_inputImport Module: ex13 from Import argvUnpacking: ex13Script, first, second, third = argvMultiple parameters are required at run timeRead file: ex15txt = open

Due to the customer's release version on the client changed some code and pictures, we have to give them update publish are incremental updates (development to provide updates to the specified file, we extracted to the customer to overwrite the

As a study, do not use for other illegal activities.Import SmtplibImport timeFrom Email.mime.text import MimetextFill in the email you want to bomb.mail_to= "[Email protected]"def send_email

You can use Python's special functions __getitem__, __setitem__, __delitem__ to create your own dictionary of mapping types.Example:#! /usr/bin/env pythonclass mydict (object):     def __init__ (self):         self.item = {}    def __ Getitem__

List[start:stop:step]>>> a_list=[' hito ', ' BB ', ' cc ', ' dd ', ' ee ', ' FF ']>>> A_list[::-1] # '-' in reverse order, start defaults to list last, start defaults to list's first bit[' FF ', ' ee ', ' dd ', ' cc ', ' BB ', ' Hito ']>>> A_list[4::

#!/usr/bin/env pythonimport osimport sysdef text_with_color (color,text): def base (color,text): Color_code = {"BLACK": 3 0, "Red": +, "green": +, "yellow": +, "blue": 34, "White": \033[;%sm%s\033[0m return "%

PEP8 Python encoding specification, pep8python Code orchestration1 indent. The indentation of four spaces (the editor can complete this function). Do not use the Tap, or mix the Tap and space.2. the maximum length of each line is 79. You can use a

Python learning Summary 2. python Summary Data TypeI. Integer and floating point number In Python, the definitions and operations of integers and floating-point numbers are the same as those of C ++. I don't need to talk about them here. I will

Python: how to modify the operating system time; python: how to modify the Operating System This article describes how to modify the operating system time in python. Share it with you for your reference. The specific implementation method is as

The radians () method for converting degrees to radians in Python, pythonradians The radians () method converts degrees to radians x.Syntax The following is the syntax of the radians () method: Radians (x) Note: This function cannot be directly

Introduction to the center () method used to process strings in Python, pythoncenter The center () method returns a string that is concentrated in the length and width. Filling is done by using specifiedfillchar. The default padding character is a

Decode () method in Python, pythondecode The decode () method uses the character string of the registered decoder for decoding. It is the default string encoding.Syntax The syntax of the decode () method is as

Introduction to using the encode () method in Python, pythonencode The encode () method returns the encoding version of the string. The default encoding is the current default string encoding. You can set different error handling mechanisms.Syntax

Describes how to use the expandtabs () method in Python, pythonexpandtabs The expandtabs () method returns a tab, that is, a copy of the string. '\ T' used space. You can use the given tabsize (8 by default) extension.Syntax The syntax of the

Explore the use of the isalnum () method in Python, pythonisalnum The isalnum () method checks whether a string contains letters, numbers, and characters.Syntax The syntax of the isalnum () method is as follows: Str. isa1num () Parameters NA

Comparison of Python dictionary traversal methods #! /Usr/bin/pythonfrom time import clockl = [(x, x) for x in xrange (10000000)] d = dict (l) t0 = clock () # method 1 for I in d: n = d [I] t1 = clock () # Method 2: slowest for k, v in d. items ():