Code, Commit, Deploy: Streamlining Web App Development with PyCharm and GitHub
PyCharm is an IDE that makes it easy to build Python applications. To build a web app in Python with PyCharm, create a new project and select the “Web Application” project type.
Once you have created a new project, you will need to add the following dependencies to your project:
- Flask: A microframework for Python web development
- Jinja2: A templating engine for Python
Once you have added the dependencies to your project, you can start building your web app. The following code shows a simple example of a web app that can be created using Flask:
from flask import Flask
app = Flask(__name__)
@app.route("/")
def index():
return "Hello, world!"
if __name__ == "__main__":
app.run(debug=True)
This code creates a simple web app that displays the message “Hello, world!” when you visit the / route.
Deploying a Web App to Heroku
Heroku is a cloud platform that makes it easy to deploy web apps. To deploy a web app to Heroku, you must create a new Heroku account and create a new Heroku app.
Once you have created a new Heroku app, you will need to add the following build packs to your app:
- Python
- Flask
Once you have added the build packs to your app, you can deploy your app to Heroku by clicking the “Deploy” button.
Testing a Web App with GitHub Actions
GitHub Actions is a continuous integration and continuous delivery (CI/CD) platform that makes it easy to automate the testing and deployment of code. To test a web app with GitHub Actions, you will need to create a new GitHub Actions workflow.
The following code shows a simple example of a GitHub Actions workflow that can be used to test a web app:
YAML
name: Test Web App
on:
push:
branches:
- master
jobs:
test:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- name: Install dependencies
run: pip install -r requirements.txt
- name: Test with pytest
run: pytest
This code creates a workflow that will run the pytest test suite whenever you push code to the master branch.