Python

Today, when worshipping Shadsocks code, the great God's code is so beautifullyThe situation that occurs is basically as follows:1 Initialize a tcphandler, of course he didn't call it that.2 Initializes a eventloop.3 Put this tcphandler into the

python2.7 starts the Python interpreter requires the Shift+del key to delete, does not support the BACKSPACE key, does not support tab completion. It is very inconvenient to use it anyway. Solving this problem can be solved by specifying a python

Look at the source of Scikit-learn, in Benchmark's benchmark_20newsgroups.py (see here for 20newsgroups datasets), see an interesting usage, as follows:1 ImportArgparse2 3Estimators = {4 "Dummy": Dummyclassifier (),5 "random_forest":

Let's create a real reptile exampleCrawl my Blog home page List of recommended articles and addressscrape_home_articles.py fromUrllib.requestImportUrlopen fromBs4ImportBeautifulSoupImportrehtml= Urlopen ("Http://www.cnblogs.com/davidgu") Bsobj=

Issue: Unicodedecodeerror: ' ASCII ' codec can ' t decode byte 0xe7 in position 7:ordinal not in range (128)Analysis: In the online search, the original Python str default is ASCII encoding, and Unicode encoding conflict, so the Chinese string

Decorators (1) Introduced HelloWorld Demand Using functional programming Add decorator Analytical Introduced The python decorator is called Decorator , which is to decorate a

When writing python, sometimes a python file may need to be used by other Python files, so you can import the package by importing it as follows:1. Where do you put your own bag?>>> import sys>>> sys.path[', '/usr/lib64/python34.zip ',

Read operations Import xlrdOpen Excel FileExcel = Xlrd.open_workbook ('excel.xls')View sheet NameExcel.sheet_names ()Get the first worksheet, either by index order, or by worksheet nameTable == = excel.sheet_by_name (u'Sheet1')Get the number

adorners in PythonAssume that the following requirements exist:a function has been defined that wants to dynamically increase its functionality at run time without altering the code of the function itself. How should it be implemented? For example,

Recently when using Python to do projects, you need to convert Chinese characters into corresponding pinyin. A ready-made program was found on GitHub.Python kanji to PinyinExamples of usage are as follows: from Import = PinYin () Test.load_word

Background: To log output to a file To record a log file every day. 1) Package model_logger.py #!/usr/bin/env # coding:utf-8 import logging import logging.handlersclass  Logger (logging. Logger):     def __init__ (Self, filename=none):     

functional programming in PythonHigher order functionsa higher order function is a function that passes a function as a parameter. It's a bit like a delegate in C #, personally. def Add (x,y,f): return f (x) + f (y) print Add (

Source of the topic:https://leetcode.com/problems/3sum/ Test Instructions Analysis:This topic is input an array of nums. Find out all 3 numbers so that the sum of the 3 numbers is 0.1. The 3 digits of the output are sorted by small to large,

1. YamlDownload the corresponding version of EXE from Http://pyyaml.org/wiki/PyYAML and install it directly.2. PipDownload the corresponding version of the compressed package from Https://pypi.python.org/pypi/pip#downloads and unzip it.Open the

Source of the topic:https://leetcode.com/problems/longest-common-prefix/ Test Instructions Analysis:The topic is to write a function that finds the longest common prefix substring of the string group STRs. Topic Ideas:The difficulty of

Source of the topic:https://leetcode.com/problems/container-with-most-water/ Test Instructions Analysis:Given an n-length non-0 array, the A1,A2,......, An,ai represents the height of the AI on the coordinate i. A container can be constructed

Description· similar to a collection of math secondary schools, a collection in Python can be used to implement a de-heavy function that is implemented by the set () function:sets supports x in Set, Len (set), and for x in set;• As an unordered

Django 1.8 comments library configuration problems, djangocomments The comments library is a built-in comments library of the django framework. It can quickly build the comments system required by the website. However, the configuration of 1.8 and

Head First Python Study Notes 1, python Study Notes # Recursive def recursion (movies): for item in movies: # isinstance is a judgment type function if isinstance (item, list): recursion (item) else: print (item )# I am learning python and record it.

Python bz2 ModuleView the file content compressed in bz2 format From bz2 import BZ2Fileimport systry: f = BZ2File ('/home/wjc/smb.conf.bz2') handle T IOError: print 'Please use an administrator account' sys. exit () for line in f: print line, f.