day8-python tuples, dictionaries, collections.

Article Directory Tuples, Dictionaries and Collections 1. Tuples 1. What is a tuple 1) Empty tuples: () 2) Tuples of a single element: (element) 3) Tuples of multiple elements: 2. Get the elements in the tuple 1) List of ways to get elements tuple support 2) Other ways (the same applies to lists) ...

Posted by suresh_m76 on Wed, 17 Jun 2020 09:25:45 -0700

python operating Excel to realize automatic report

Excel is one of the most widely used tools in daily office. Learning it well can help us save time, improve work efficiency, and learn to use Excel flexibly and efficiently. I think those who can use most excel built-in formulas and VBA are experts. But the more advanced is to use the program to op ...

Posted by x_maras on Wed, 17 Jun 2020 01:52:44 -0700

Construction of appium automatic test environment

1. Installation Node.js Reason: Appium is implemented with nodejs, so node is interpreter Download address: https://nodejs.org/en/download/releases/ Be careful Node.js Compatible with the version of Appium, you can check: https://github.com/appium/appium/releases After installation, open cmd to check ...

Posted by tomash on Wed, 17 Jun 2020 00:53:05 -0700

In order to make my girlfriend happy, I used Python to grab all the major recipe information (see how I did it)

preface: In the holiday, often want to try their own cooking, kitchen this website is a good choice. Under the kitchen is one of the necessary sites, mainly provides a variety of food practices and cooking skills, including many kinds. Today, I will teach you to climb and take down the recipes in th ...

Posted by Roddy87 on Tue, 16 Jun 2020 22:03:11 -0700

Python notes 1 - numpy section

Start to sort out the important modules of python and the parts that you often forget. First, let's study and sort out numpy. First of all, numpy (Numerical Python) is a very important library of python. It is also a program library that I often use in my study and work process. It is mainly used for ar ...

Posted by mccormr7 on Tue, 16 Jun 2020 20:30:40 -0700

Python threading multi thread advanced (thread guard, thread synchronization - mutex and recursive lock, BoundedSemaphore, Event)

Article catalog Multithreading (review) General creation method (not commonly used) Custom thread (inherited threading.Thread) Advanced knowledge Daemons Let the main thread wait for the child thread to end Thread sharing global variables Thread synchronization mutex Recursive lock BoundedSemapho ...

Posted by hitman6003 on Mon, 15 Jun 2020 23:23:34 -0700

Python 3.7 learning notes 27 context manager

Python 3.7 learning notes 27 context manager Input and output of files, connection and disconnection of database are common resource management operations. Because of limited resources. In such a scenario. If these resources are used but not released. It will cause resource leakage. Light makes the ...

Posted by mcmuney on Mon, 15 Jun 2020 19:33:05 -0700

Five cases of data analysis: handle data processing (basic, detailed)

Article catalog Data analysis with python (Second Edition) Example 1. Data analysis of time zone 1.1 pure python time zone count 1.2 time zone counting with pandas Example 2. Analysis of film rating data 2.1 difference of measurement and evaluation Example 3. Data analysis of infant names in the Un ...

Posted by revraz on Mon, 15 Jun 2020 01:30:32 -0700

A simple practice of load balancing configuration

Welcome to the original self built blog:http://www.e-lionel.com/index.php/2020/04/10/187/ In recent Q & A projects, there is a need to deploy multiple sets of Python services, and other programs rotate to call interfaces. Because there are multithreaded calls in the calling process, the following lo ...

Posted by DJTim666 on Mon, 15 Jun 2020 01:04:07 -0700

Speech emotion recognition based on CNN+MFCC

In recent years, with the rapid development of information technology, intelligent devices are gradually integrated into people's daily life. As one of the most convenient ways of human-computer interaction, voice has been widely used. It is the goal of countless researchers to make machines understand ...

Posted by neodaemon on Sun, 14 Jun 2020 18:29:58 -0700