Pymsql is a module that operates MySQL in Python and is used almost the same way as MySQLdb.1. Installation
The administrator opens cmd, switches to the Python installation path and enters into the Scripts directory (for example:
Using Vscode to write Python is quite comfortable, but if you install a grammar check plugin for vscode, such as Flake8, you will often be prompted with some very demanding grammatical problems, the most intolerable of which is line to long.A row
Related background of project establishment, TODO direction.First, Ubuntu environment configurationHost system: Windows 7 SP1 64-bit operating system | i5-4210 CPU | 16GB RAMVirtualBox Virtual Environment: GUN VitrualboxLinux system: Ubuntu 15.10
The original is the PY2 environment, and my environment is py3, so the original code has been modified: decode (), encode ()ImportRSA#Generate key(PubKey, Privkey) = Rsa.newkeys (1024)#Save KeyWith open ('Public.pem','w+') as F:f.write
1.http://python-china.org/t/77 understanding of Method binding2.[python] Dir () differs from __dict__,__slots__3.Descriptor HowTo Guide4. How do I understand Python's descriptor?5. Concise Python Magic-16. Concise Python Magic-27. Explain the
HtmlHTML is an abbreviation for the English Hyper Text mark-up Language (Hypertext Markup Language), which is a standard language (tag) for making Web pages. The equivalent of a uniform set of rules, everyone to abide by him, so that you can let the
#!usr/bin/env python#-*-coding:utf-8-*-#字符串通常用双引号或单引号来表示: ' 123 ', ' abc ', ' String '#str字符串的常用方法有以下: String can be used to assign a temporary variable s#友情提示以下全是python2. x version demo, python3.x please print (put in test printing), for example:
List function: Function: Convert character to list, example:List Basic functions: 1. Element Assignment , example:Note: by list[0]= ' Hel ', if there is a value in the original position, it will overwrite the original. 2. Shard Operations1)
The dumps () function, the loads () function, the dump () function, the load () function are mainly in the JSON module.JSON returns a string type with high readability, which differs from pickle.There are limitations, no serialization of time
Weibo of the simulation landing is a comparison pit, see a lot of great God on the Internet post, and I saw the microblog of the log when the JSON data: 1, found in the login when entering the account with Chrome can see there will be a prelogin
1. Multi-threaded creationImport threadingt = t.theading.thread (target, args ...)T.setdeamon (True)//Set as DaemonT.start (), starting threadT.join (), which blocks the current thread, and does not exit even if the current thread ends. Will not
1. NotesComments generally have the following methods# single Comment"" "Comment content" "" Multiline comment#coding =utf-8 or#coding =GBK plus Chinese notes.++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++2.continue statement
Recently, I was looking for a job, so I crawled through all the python positions in the hook net to provide a direction for myself. Hook NET data is still relatively easy to crawl, get JSON data directly parse on the line, nonsense not to say,
Work time through the browser to open the stock website afraid to be seen by others, it doesn't matter, try to execute code under the command line to see the data on the line.
Input sh, you can view the Shanghai Composite
Enter SZ, you can view the
C:test [dir] getpath [file] path.py [dir] sub [file] sub_path.py
Like what
There is also a directory named sub under the C:\test directory;
C:\test directory under the Getpath.py,sub directory has sub_path.py,getpath.py call sub_path.
1. Two ways to get the current time:
Import Datetime,timenow = Time.strftime ("%y-%m-%d%h:%m:%s") Print Nownow = Datetime.datetime.now () print now
2. Get the last day of the month minus 1 days on the first day of the month
Last = Datetime.date
The Python integer object is stored in a different location, some of it is pre-allocated memory, it has been stored in memory, and others, when used to open up space.
To say the reason for this sentence, you can look at the following code:
A = 5b
Python built-in functions (60) -- classmethod, pythonclassmethod
English document:
staticmethod(Function)
Return a static methodFunction.
A static method does not receive an implicit first argument.
The@staticmethodForm is a function decorator-see
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