The-Flask-Mega-Tutorial | 《The Flask Mega-Tutorial》中文2018最新版 | SQL Database library

I have a Flask API that connects to an Azure SQL database, deployed on Azure App Service in a Docker Image.

It works fine but I am trying to keep consistency between my development, staging and production environments using Alembic/Flask-Migrate to apply database upgrades.

I saw on Miguel Grinberg's Docker Deployment Tutorial, that this can be achieved by adding the flask db upgrade command to a boot.sh script, like so:

I can create, delete and display all but the update function will not work and does nothing. When I look the error in the console log it points to

I've been following the steps to a tutorial and (1) created a new directory for my project, (2) run C:\Users\JohnSmith\AppData\Local\Programs\Python\Python38\python -m venv .venv in that directory to create the virtual environment, (3) run .venv\Scripts\activate to activate it, (4) run to install python -m pip install flask which should only be available in this environment, (5) flask --version confirms that it is installed in (.venv), here is the output from this last command:

Python 3.9.0

Flask 1.1.2

Werkzeug 1.0.1

The issue is when I try to reference flask in my code it returns the following: ModuleNotFoundError: No module named 'flask'.

I saw some posts about creating a new Build System but I have no clue how to do that. Anyone else set up something similar? Please don't recommend some other virtual environment, since I'm committed to following this tutorial and venv is the tool he uses which comes included in Python 3.9.

The first bit of code in the file ..\app\__init__.py has the following code that gives the above error (first line) when I hit CTRL+b:

I have written some unit tests/integration tests for flask using python unittest. I am broadly using the example code written out here: https://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-vii-unit-testing-legacy

These tests used to run perfectly but now I have just tried to run them again and am running up against an error:

1. I am trying to build a Flask web app which accepts input parameters from users, uses those parameters to fetch some data, perform some processing (taking about2-3 minutes), and show the output to user.
2. I am trying to follow Miguel's Flask Mega Tutorial (https://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-i-hello-world)
3. I have created the User class which will accept the user specific inputs, and will process and generate output.
4. Problem is, where should I create object for the User class (for each user opening the UI)? If I create it inside the init.py, it becomes global, and so one user's data overwrites another's.
5. I think it should be created in routes.py, but how to share the objects across different view functions in the routes?

I am quite new to Web Service in General and Flask in particular, so please excuse if the question is dumb.

I have a an app deployed on Heroku based on this tutorial. https://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-i-hello-world

I can't view all the data inside one of my tables. Is this a Postgres feature? I'm new to Postgres and DBs.

List of tables

I just finished a Flask app that I want to host on my laptop (under Ubuntu 18.04) through a Virtual Machine (using Vagrant).

My network configuration is the following one :

network configuration

I defined a domain name (through No-IP website), I configured my internet router for port forwarding (from 80 to 8080 and from 443 to 8443) and I added dynamic DNS to link my domain name to my internet router public IP address.

The command host my_domain_name gives me back my internet router public IP address.

Then I created a Vagrant private network (with 192.168.33.10 IP address) and a Vagrant port forwarding :

I am building a web form using Flask and would like the user to be able to enter multiple entries, and give them the opportunity to regret an entry with an undo button, before sending the data to the database. I am trying to use Flask-Caching but have not managed to set it up properly.

I have followed The Flask Mega-Tutorial for setting up Flask (this is my first Flask app).

I am following a tutorial to do the simplest "Hello World" Flask app as described in: https://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-i-hello-world

For context, I have created the directory at the root of the C drive to avoid the potential path issues. I am running Python 3.8 and Flask 1.0.2 and werkzeug 0.15.2

Before issuing the flask command I am doing two things. Creating a virtual environment and installing a local flask version