Python

1. Working with MySQLPython3 operation MySQL, need to import third-party module "Pymysql", use "Pip install Pymysql" can be installed, Python2 need to import MYSQLDB module,Take Python3 as an example to illustrate:1

Tag: expression returns the specified any regular module digital print classRe module \ Regular expression one, meta-character1,. ^ $ * + ? { } [ ] | ( ) \"."　　Represents (any one character) "*" for (any number of arbitrary characters, 0-Infinity) "+

\033[30m--\033[37m setting foreground colorPrint ("\033[35m hello,world! \033[0m")View Code\033[40m--\033[47m Set background colorPrint ("\033[45m hello,world! \033[0m")View CodeHighlighting, underlining, anti-white displayPrint ("\033[31m

# 1, write a function, batch generation of some registered use of the account: The resulting account is the end of @163.com, the length of the user input, the number of entries generated by the user input, the user name can not be repeated, the user

When it comes to sequences, we first think of a set of ordered elements. At the same time, each element has a unique subscript as the index.In Python, there are many sequences of inner bounds. Includes tuple tuples, list lists, string str, and so on.

Python Learning-day06Switch/case statements in 1.pythonPython does not have a switch/case statement, you can use the dictionary and function in a way to achieve switch/case effect.As follows:Note: from__future__ Import Division: The function is to

send_email.pyClass Sendemailviewlist (Baseviewlist): Def__INIT__ (Self): Super (Sendemailviewlist,Self).__INIT__ (None) Def post (Self, request, format=None):data = Getrequestbody (Request) PrintType (data)Emailserver = Data.get ('

Get mail at Jenkinsfetch_email.py#coding =utf-8Import PoplibFrom Email.parserImport ParserFrom Email.headerImport Decode_headerdef guess_charset (msg):CharSet = Msg.get_charset () If CharSetIsNone:Content_Type = Msg.get (' Content-type ',"). Lower ()

Configparser ModuleOne,configparser module1, what is configparser module :configparser module operation configuration file, configuration file format similar to Windows INI and Linux CF file, can contain one or more sections (section) , each section

Scope of the functionis the nearest principle, look out from inside, if you have in your function, take it.If you do not have a function inside of it, go to its parent function inside find, father can't use son, son can use father'sfunction is

There is a file 1.txt below, requires the use of the shell and Python implementation of the sorting, first sorted by the first column, the first column is the same and then sorted by the second column, and output to another file 2.txtlzdemacbook-pro:

Urllib3URLLIB3 is a powerful, sensible and friendly HTTP client program. Most of the python ecosystems are already in use and you should be urllib3. URLLIB3 brings many key features missing from the Python standard library:Thread safety.Connection

deffun1 (ARG):delArg[2:]li=[11,22,33,44]fun1 (LI)Print(LI)#output: [One, one]#The function's argument is actually a reference, which is equivalent to pointing arg to the address that Li points to##########################################deffun1 (ARG)

This article is mainly for everyone to introduce the Python flask to achieve paging effect, with a certain reference value, interested in small partners can refer to In the course of our study will encounter such a problem, that is, in the course

First, XSS Cross Site scripting attacks (Scripting), which are not confused with the abbreviations of cascading style sheets (cascading style Sheets, CSS), are abbreviated as XSS for cross-site scripting attacks. A malicious attacker inserts

Supervisor can be used to protect processes running under Linux, providing functions such as start/stop/restart to ensure that processes are not accidentally killed by other processes. First Apt-get Install Supervisor Supervisord is daemon

This article mainly describes the Python record detailed call stack log method, involving Python call stack log related techniques, with a certain reference value, the need for friends can refer to the following The example in this article

This article mainly describes the python merge text file example, the need for friends can refer to the following Python implements two text merges Work number and name are recorded in the employee file Cat employee.txt:100 Jason Smith200 John Doe30

View All Commands Scrapy-h View Help information Scapy--help View version Information (venv) ql@ql:~$ scrapy versionscrapy 1.1.2 (venv) ql@ql:~$ (venv) ql@ql:~$ scrapy version-vscrapy : 1.1.2lxml : 3.6.4.0LIBXML2 : 2.9.4Twisted :

This article mainly introduces the summary of three common techniques in Python programming, including the conversion of JSON format, the use of else statements and SetDefault methods, the need for friends can refer to the following You can see