The basic blog app built in the Flask tutorial.

Be sure to use the same version of the code as the version of the docs you're reading. You probably want the latest tagged version, but the default Git version is the main branch.

# clone the repository
$ git clone https://github.com/pallets/flask
$ cd flask
# checkout the correct version
$ git tag  # shows the tagged versions
$ git checkout latest-tag-found-above
$ cd examples/tutorial

Create a virtualenv and activate it:

$ python3 -m venv .venv
$ . .venv/bin/activate

Or on Windows cmd:

$ py -3 -m venv .venv
$ .venv\Scripts\activate.bat

Install Flaskr:

$ pip install -e .

Or if you are using the main branch, install Flask from source before installing Flaskr:

$ pip install -e ../..
$ pip install -e .

$ flask --app flaskr init-db
$ flask --app flaskr run --debug

Open http://127.0.0.1:5000 in a browser.

$ pip install '.[test]'
$ pytest

Run with coverage report:

$ coverage run -m pytest
$ coverage report
$ coverage html  # open htmlcov/index.html in a browser