# Coding:utf8? from bs4 import beautifulsoup Import Re?Html_doc = "" "the Dormouse ' s storythe dormouse ' s story?once upon a time there were three Little sisters; and their names wereELSIELacie andTillie;And they lived at the bottom of a well.?
This is a two module for serializationJSON: Used to convert between string and Python data typesPickle: Converting between Python-specific types and Python data typesThe JSON module provides four functions: dumps dump loads loadThe Pickle module
The parameters of Py is really many, it is very convenient to use, so many parameter types can be seen in the practicality of its engineering is very extensive.Very interesting, this article mainly refer to Liaoxuefeng's Python tutorial.#Required
Oi********oi********oiThe above * symbol represents a series of code, OI represents a "yield" keyword derived from the "data exchange, called Oi"In a function that has a "yield":In the "yield" where there is a "oi" process, why is not "IO", because
Recently there is a demand, statistics input personnel actual working time, think of, every time to do a client to the user's current window title record down, regularly passed to MySQL, and then use another script to analyze the actual working time,
PS: Feel as if to reach the party, the title of the Lord I have an idea at the beginning, just feel the running efficiency is too slag, to learn the methods of everyone.
There are now busy with the college entrance examination, there is not much
The use of python3.3, Baidu has been checked because of the version of the problem. But I do not have a companion to study the document AH. Who can offer me a copy? How do you write Hello World under python?
Reply content:After Python 3, print is
Reply content:Start by clarifying these Python rules before making inferences.
1. Data is the incoming query parameters, according to the modern programming language of the play, is to be converted to a Unicode string, so that internationalization
When it comes to micro-frames, Python flask and Ruby Sinatra are undoubtedly the hottest two, and would like to hear the comments and recommendations of friends who have contacted them. From my current understanding, although python in the domestic
Reply content:Django's limitations are nothing more than encapsulation too much general enough, flexibility is not enough, middleware does not follow the WSGI protocol from a set of relatively closed, orm/template performance is poor.
For starters,
Main implementation Features:
-Landing Page
-Dynamically waiting for Web pages to load
-Verification Code Download
An early idea is to automatically follow the script to perform a function, saving a lot of manpower--personal lazy. Spent a few days
The example in this article describes Python's socket server based on select. Share to everyone for your reference, as follows:
Using method of Select.select in Asyncore module
Import Socketimport Tracebackimport selectEOL1 = B ' \ n ' EOL2 = B '
Main background: E-graduate students to CS (machine learning and computer vision direction), MATLAB is used in a relatively familiar.
Want to go to Python for a reason:
1. Python feels better about network programming and text processing than
Why does the operation in Python result in a close to 0 and not zero? How to explain the lack of accuracy of floating-point numbers? Why did the first two expressions not appear the problem last one? Ask
Reply content:This is because the decimal is
The example in this paper describes how Python implements heap ordering. Share to everyone for your reference, as follows:
Heap sorting is one of the basic sorting methods, similar to a merge sort rather than an insert sort, which runs at O (Nlogn),
For example, Python's matplotlib library bar, very convenient and even built-in from the Yahoo finance data on the class, even the regular expression do not have to lose ... C + + is a lot less than the library ... Even if there's a lot of code that
Example
The usual, previous code:
def add (S, x): return s + Xdef Gen (): For I in range (4): yield ibase = gen () for n in [1]: base = (Add (i, n) for I In base) Print List (base)
The output of this thing can be brain-mended, and the result is [2
Why use a function
Maximize code reuse and minimize code redundancy
Decomposition of processes
Writing functions
>>def statementsCreating a function in Python is done with the DEF keyword, and the DEF statement creates a function
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