Python 5 Line code farewell backup painful times

Application from demandI am a photo maniac, even more so since I bought a DSLR! My hard drive is certainly not enough, so every backup is a very painful thing! So think of their own to do a self-help to solve the program automatically, just in

Python file Practice _ Find the IP in log and count

Requirements: monitoring logs, if there is an attack, the IP blacklistAnalysis:1. Open log File2. Take out the IP address3, determine the number of times each IP appears, if more than 50 times, add blacklist4. Read once per minuteLog style:178.210.90

Using Python to bubble sort

#-*-Coding:utf-8-*-# # Bubble Sort Resolution"""the necessary knowledge for bubbling sorting:swap position with temp temporary variableA1 = 456A2 = 123temp = A1A1 = A2A2 = tempPrint (A1)print (A2)the intermediate variable temp can not be used in

Python full Stack development class Note _day03

Tag:slow   friend    key value    git   sub    asc    Replace string    dea   $$    What to learn today: 1. Basic data type initial: int: for calculation. STR: Used to store a small amount of data such as: ' Alex ', ' 123 ': Bool:true, Falselist:

The usage of the Python optparse module is detailed

A brief introduction to the Optparse modulePython has two built-in modules for handling command-line arguments:One is that getopt can only handle command-line arguments easily;The other is Optparse, which is powerful and easy to use, and makes it

Python Network programming Socket module

1. Network ProtocolsNetwork protocol is the rules, standards or conventions for data exchange and transmission in the network, and the utility consists of three elements: syntax (the structure of data and information), semantics and synchronization (

Machine learning Path: Python K-mean clustering Kmeans handwritten numerals

Python3 Learning using the APIUsing the data set on the Internet, I downloaded him to a localcan download datasets in my git: https://github.com/linyi0604/MachineLearningCode:1 ImportNumPy as NP2 ImportPandas as PD3 fromSklearn.clusterImportKmeans4

python-Basics-string-list-Ganso-Dictionary 2

Pick Up: http://www.cnblogs.com/liu-wang/p/8973273.html3 tuples4 Introduction of the Dictionary 4.1 dictionary Dictionaries in software developmentVariable info is a dictionary type: info = {‘name‘:‘班长‘, ‘id‘:100, ‘sex‘:‘f‘,

4.28-python Learning Notes (escape character &input function)

Bibliography: The Hard Learn Python##练习10Print("I am 6 ' 2\ "tall.")#to escape double quotesPrint('I am 6\ ' 2 "tall.')#to escape single quotes#The print is the string in quotation marks, this example is to illustrate the quotation marks in the same

Ubuntu 16.04 Python 3.x installation OpenSSL

Error message:Can‘t connect to HTTPS URL because the SSL module is not available. When you connect to HTTPS, you are prompted that SSL is not available Test# 进入python$ python3 # or python3.6# 导入SSL模块>>> import sslIf the following

"Python Data Analysis" module ' numpy ' has no attribute ' array '

After installing the NumPy module, I started to do a few small tests to run, but when I created numpy.py this filenumpy.pyimport numpyy = Numpy.array ([[[11,4,2],[2,6,1],[32,6,42]])print(y)After the operation error:Traceback (most recent):File

Python defines interface inheritance class Invalid syntax workaround

Class S_all (METACLASS=ABC. Abcmeta): #python2.7 Use this method to define interface inheritance # __metaclass__ = abc. Abcmeta @abc. Abstractmethod def read (self): Passpyhton2.7 will error, this method is used for python3+pyhton2

Python crawl picture précis-writers

Ref: 795065431 #-*-coding:utf-8-*-2 ImportUrllib3 Importurllib.request4 ImportRe5 6 defgethtml (URL):7Request =urllib.request.Request (URL)8Response =Urllib.request.urlopen (Request)9HTML =Response.read ()Ten returnHTML One A defgetimg (HTML): -

Python's co-process

First, what is the co-processThe process is called micro-threading, is a single thread implementation of the concurrency effect of a concept, one sentence explanation is: The process is a user-state lightweight thread, it can be user-defined program

Fully parse the scope of variables in Python starting with local variables and global variables

Whether it is a class-based face object programming, or a simple function of the definition of internal variables, the scope of the variable is always a Python learning must understand the link, the following we start from the local variables and

Conditional Judgment Statement Basic Learning in Python

This article mainly introduces the conditional judgment statement in Python Basic Learning tutorial, the article uses the python2.x version but the conditional statement part of the usage rules are not changed in 3.x, the need for friends can refer

The simple use of Python multi-threading, lock, event events mechanism

This article mainly introduces the detailed Python multi-threading, lock, event events mechanism of simple use, now share to everyone, but also for everyone to make a reference. Come and see it together. Threads and processes 1. Thread sharing the

Details Python3 operating system and Path module (os/os.path/pathlib)

Below for everyone to share a detail Python3 operating system and Path module (os/os.path/pathlib), with a very good reference value, I hope to be helpful to everyone. Come and see it together. The following code takes PYTHON3.6.1/WINDOWS10 as an

Python iterator definitions and simple usage analysis

This article mainly introduces the Python iterator definition and simple usage, and analyzes the concept, principle, creation and use of the iterator in the form of an instance, and the friends can refer to the following The examples in this

Use Python to open Excel and add sheet methods by Win32 COM

This article mainly describes the use of Python through the Win32 COM open Excel and add Sheet method, has a certain reference value, now share to everyone, the need for friends can refer to Win32 COM is not very familiar with, do not know how many

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