For the operation of Excel, you need to XLRD/XLWT these two modules, the following recommended a systematic study of the Web site:Python operations Excel Read-write-using XLRDOfficial documentsPython uses XLRD/XLWT to manipulate ExcelRead and write Excel files in Python1 Download XLWT and XLRD under Windows2. Unzip the xlrd-0.9.2.tar.gz to the specified folder3. Under CMD console switch to the specified folder path above, enter command python setup.py
One of the most useful Python collections are the dictionary, which is a associative data type where you can store Key-dat A pairs. It is implemented using hash tables.Hash Table is a collection of items which be stored in such a by-make it easy to find item. Each position of the hash table, often called a slots, can hold an item and are named by an integer value
Python exercise question 017: Three table tennis teams in the competition list, python017
[Python exercise 017]Two table tennis teams competed, with three members each. Team a is a, B, and c, and Team B is x, y, and z. The game list has been determined by lottery. Someone asked the players about the game list. A said h
It's really handy to write execl with OPENPYXL. Let me first introduce the relevant modules and functions usedWorkbook: Workbook module, creating a workbook in memory.Excelwriter: Use it to write data to the Exel.Get_column_letter: Get a column name for a number, such as A,b,cWriting data to an Excel table#!/usr/bin/env python# _*_ coding:utf-8 _*_from openpyxl.workbook import workbookfrom openpyxl.writer.e
Use Python loop (including while for) to print the 9-9 multiplication table instances, pythonwhile
I. Print the 9-9 multiplication table in a for Loop
# Note: Due to the poor control of indentation in the browser, please forgive me. images will be imported later.
1.1 lower left corner
for i in range(1,10): for j in range(1,i+1): print('%d*%d=%2d\t'%
start from the ID, convenient.
Insufficient implementation:
In order to prevent the master-slave delay is too high, the use of each delete SLEEP1 second way, relatively rough, the best way should be the cycle scan this copy link, according to the delay to adjust the sleep cycle, anyway, scripted, and then intelligent Point!
The above is a small series to introduce you to the Python incremental cycle delete MySQL
ORM
The MySQL table structure is a two-dimensional table, which is represented by a Python data structure as a list, and each record is a tuple. As shown below:
[(' 1 ', ' Huangyi '), (' 2 ', ' Letian '), (' 3 ', ' Xiaosi ')]
This line is not easy to see the structure of the table, you can change it into the form of o
python2.4+ and python3.0+ major changes or additionsPython2 Python3Print is a built-in command print becomes a functionPrint >> f,x,y print (x,y,file=f)Print x, print (x,end= ")Reload (m) imp.reload (m)Apply (f, PS, KS) F (*ps, **ks)x Long int1234L 1234D.has_key (k) k in D or D.get (k)! = None (Has_key dead, in immortality!)Raw_input () input ()Input () eval (input ())Xrange (A, b) range (A, B)File () Open ()X.next () x.__next__ () and called by the next () methodX.__GETSLICE__ () x.__getitem__
1. The first page describes the contents of the Word table as follows: Every two tables is followed by a merged cell2. Introduction of the Win32com module3. Specific code1 #http://www.jb51.net/article/70318.htm2 #http://www.cnblogs.com/graphics/articles/2953665.html3 #http://shouce.jb51.net/python/4 ImportWin32com,re5 fromWin32com.clientImportdispatch,constants6 7 8Word=win32com.client.dispatch ('Word.Appl
This article describes how to use python to compile a script for collecting statistics about the unshutdown of a LAN and generate an excel table (sample code) this article describes how to use python to compile a script for collecting statistics about the unshutdown of a LAN and generate an excel table (sample code)
#
The example in this paper describes how Python outputs the 9*9 multiplication table. Share to everyone for your reference. The implementation method is as follows:
#!/usr/bin/env python# 9 * 9for i in range (1, ten): print for J in range (1, i+1): print "%d*%d=%d"% (i, J, I*j ),
Add an easier way:
The code is as follows:
Print (' \ n '. Join (["%d*
', cell_overwrite_ok=true) #創建第一行 Sheet1.write_merg E (0,0,0,3,u ", Setunitstyle (' Times New Roman ', 500,false)) Sheet1.write_merge (0,0,3,10,u ' ACM 404 training Seating table ', Setunitstyle ( ' Times New Roman ', 500,false)) Sheet1.write_merge (1,1,1,4,u ", Setunitstyle (' Times New Roman ', 300,false)) Sheet1.write _merge (1,1,6,10,u ", Setunitstyle (' Times New Roman ', 300,false)) Sheet1.write (1,5,u ' podium ', Setunitstyle (U ' Microsoft Ya
This article mainly describes the Python implementation of the SQLite database exported to Excel (XLS) Table method, in conjunction with the instance form of Python for the SQLite database connection, read and use the Write operation package (XLWT) to generate Excel table related implementation skills, A friend you nee
In the recent study of Python, learning resources are online video tutorials, novice tutorials, and official Python document tutorial. Although the basic syntax of Python has been understood, there is no real sense of outputting the code that you write. Code small white, previously only learned C, the logic of the code is always unclear, plus character a bit impa
Tags: module PNG database and pass read print sharing technology
Environment
Python 3.6, Window 64bit
Objective
Reads the target table data from the MySQL database and processes
Code
#-*-Coding:utf-8-*-
import pandas as PD
import pymysql
# # plus character set parameters to prevent Chinese garbled
dbconn=pymysql.connect (
host= "**********",
database= "Kimbo",
user= "Ki
abbreviation (capwords) and create conversion table (Maketrans) detailed descriptionThis address: http://blog.csdn.net/caroline_wendy/article/details/27051977A string module that includes constants and classes that handle text.capwords (), capitalize the first letter of all the words in the string (string);Maketrans (), create a comparison table, and then use the translate () function, invoke the comparison
Scenario:There is a business database that uses MySQL 5.5 and writes a large amount of data every day. It is easy to delete data from multiple tables before the specified period from time to time, write a few WHILE loops. Although MySQL also has similar functions, I am not proficient in it, so I use Python to implement it.Script:# Coding: UTF-8Import MySQLdbImport time# Delete configDELETE_DATETIME = '2017-08-31 23:59:59'DELETE_ROWS = 10000EXE
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