Solution to the problem of installing tkinter module in Mac

Article directory 0 in front 1 problem description 1 solution 1.1 first make sure to uninstall python3 1.2 then install xcode 1.3 replace ruby script 1.4 install python 1.5 test 0 in front Environmental Science: mac catalina 10.15.1 python 3.7.5 tkinter 8.6 1 problem description When you r ...

Posted on Mon, 24 Feb 2020 06:15:35 -0500 by Fabrizzio PHP

Implement a simple user rights management (RBAC) using Python+Flask+Bootstrap (Part3)

Code structure and description I listed all the files in the first chapter, and I'll cover them in this chapter. root directory db_design.txt This is the sql script that initializes the database. There is a user.sqlite under the tool_portal directory, and this file is generated by this initializati ...

Posted on Sun, 23 Feb 2020 21:49:31 -0500 by mynameisbob

"Django learning diary" starts from scratch and builds a student management system

In my opinion, starting with a simple project, you will learn quickly. In a project, when you find a problem, you say it. If you have any mistakes, please correct them. I will correct them. Also welcome to exchange. There are many basic python tutorials on the Internet. After all, they are basic, so mos ...

Posted on Fri, 21 Feb 2020 06:30:14 -0500 by keyoung

Use of APScheduler in python timing framework

Article directory APScheduler install Composition of apscheduler Common schedulers Configure scheduler Start / stop scheduler event listeners Operation and operation storage Job is the framework to undertake the work and tasks that need to be performed at present. We can dynamically add, modify, de ...

Posted on Fri, 14 Feb 2020 04:26:11 -0500 by kenrbnsn

Python uses database (SQLite)

SQLite is an embedded database whose database is a file. Because SQLite itself is written in C and its volume is very small, it is often integrated into various applications, even in iOS and Android apps. SQLite3 is built in Python, so you don't need to install anything to use SQLite in Python. Before using SQLite, we need to understand several ...

Posted on Fri, 31 Jan 2020 04:31:09 -0500 by littlejay

Desktop layout of Android 80go platform

1. File path vendor/go-gms/apps_go/GmsSampleIntegrationGo/res/xml/partner_default_layout.xml 2. Screen division The bottom and middle screens are separate. The bottom icons are on screen 0 / 1 / 2 / 3, and the middle screen and the right screen are on screen 0 / 1. 2.1 single icon at the bottom    <!-- Hotseat (We use ...

Posted on Sat, 18 Jan 2020 12:01:56 -0500 by gorskyLTD

QT homework student information management system

There are ten thousand wine fights in gold cups and ten thousand money in jade plates. I can't eat when I stop the cup, and I'm at a loss when I draw my sword. If you want to cross the Yellow River, you will climb the Taihang snow covered mountain. When I came here to fish in Bixi, I suddenly dreamed o ...

Posted on Sun, 12 Jan 2020 03:36:09 -0500 by Kano

Centos7's attempt to replace the kernel to 4.16

Background: For special requirements, you need to use the kernel 4.x version. How to replace ECS on the cloud? First of all: Please keep awe of the production environment and do a good snapshot backup! Please keep awe of the production environment and do a good snapshot backup! Please keep awe of the production environment and do a good ...

Posted on Mon, 06 Jan 2020 02:17:45 -0500 by bufo

Android studio gets the system time and displays it in listview

Read a lot of online access to time examples, always feel that they do not meet their own requirements. Finally, in a casual search, I found the same time mechanism as nails, which is exactly what we need, so I recorded it again. My friends don't give up when they see the long code below. I originally meant to refine the key p ...

Posted on Fri, 03 Jan 2020 14:41:42 -0500 by god_zun

The use of Android database framework GreenDao

IDE version: Android Studio version 3.0.1 About GreenDao GreenDao is a lightweight and fast ORM solution that maps objects to SQLite databases. To avoid too much time-consuming of programmers in dealing with low-level database requirements, GreenDao maps Java objects to database tables (called ORM, "object / Relational ...

Posted on Mon, 23 Dec 2019 16:50:58 -0500 by peuge