kandi X-RAY | hello_flask Summary
kandi X-RAY | hello_flask Summary
hello_flask
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Community Discussions
Trending Discussions on hello_flask
QUESTION
I am currently learning how to use Flask, PostgreSQL and Docker because I am trying to do a web app.
I have created two containers for the development phase: one for the database and other one for the web. The problem that I have is that whenever I stop and restart my containers, the data is not there anymore.
For the creation of the containers I have followed the following link: https://testdriven.io/blog/dockerizing-flask-with-postgres-gunicorn-and-nginx/#project-setup
I have seen that I could create a volume to persist the data in the container but it doesn't seem to work and I don't really understand why. Here is my docker-compose file:
...ANSWER
Answered 2021-May-05 at 11:57Well, after trying and trying and almost giving up, I found the solution. I will leave it here if it helps someone.
It appears that the "web" application was overwriting the database and the solution was to change in the docker-compose the depends_on: db
in web to depends_on: web
in db. Now, it looks like this:
QUESTION
I'm running Kubuntu 20.10 and trying to run the flask-script out of "Head first Python", page 203:
...ANSWER
Answered 2020-Nov-26 at 16:29You are missing a ()
on app.run()
QUESTION
I am trying to get the last entry from quickquizlist.html input and get it on test.html. i was tying through app.py but didn't make it, also tried from html page itself but no luck. I'm not an expert but i think my data saved in session and not in sqlalchemy as i though. this is not the problem, i just want to take the last entry from html page and have it on another html page.
the scenario is, when the user fill the text inputs all data (because the user can enter multiple times) will be printed on result.html as a table. i want only the last entry to be printed on test.html
here is my app.py
...ANSWER
Answered 2020-Sep-19 at 14:33You are retrieving all objects from the database using quickQuizQuestions.query.all()
.
You want to retrieve only one object; your last entry. If your question id does increment, you can do this with:
QUESTION
Am trying to learn Python3 / Flask using Visual Studio Code on my macOS machine.
Using:
- macOS Mojave (10.14.6)
- Visual Studio Code 1.37.1
- Python 3.7.4 64 bit (venv)
Tried the instructions in the following tutorial:
https://code.visualstudio.com/docs/python/tutorial-flask
- Created a virtual env by inside the newly created hello_flask folder:
ANSWER
Answered 2019-Aug-16 at 02:18Main file name must be exported before running the flask run
.
QUESTION
I am trying to get a basic terraform example up and running and then push a very simple flask application in a docker container there. The script all works if I remove the file provisioner section and the user data section. The pem file is in the same location on my disk as the main.tf
script and the terraform.exe
file.
If I leave the file provisioner in then the script fails with the following error:
...ANSWER
Answered 2018-Oct-13 at 17:23aws_launch_configuration
is not an actual EC2 instance but just a 'template' to launch instances. Thus, it is not possible to connect to it via SSH.
To copy those file you have two options:
Creating a custom AMI. For that, you can use Packer or Terraform itself, launching an EC2 instance with
aws_instance
and these file provisioners, and creating an AMI from it withaws_ami
The second one is not a best practice but if the files are short, you can include them in the
user_data
.
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Install hello_flask
You can use hello_flask like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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