Cannot initialize flask initdb (Flask Tutorial Step4)

I think you should follow this:

edit the configuration in the flaskr.py file or export an FLASKR_SETTINGS environment variable pointing to a configuration file.
install the app from the root of the project directory
```
pip install --editable .
```
Instruct flask to use the right application
```
export FLASK_APP=flaskr
```
initialize the database with this command:
```
flask initdb
```
now you can run flaskr:
```
flask run
```

Pay attention to install --editable correctly. I don't see the "." the first time.

the correct expression should be:

export FLASK_APP=flaskr.py

Note: no spaces around =.

Following screenshot show you outputs with different envvar FLASK_APP :

python database flask

Ran into the same issue, fixed it with

python3 -m flask initdb

I had to do everything for the tutorial with python -m flask <command>

I'm guessing its something to do with python3 instead of python2 but I'm new to python so not super sure.

CodeHunter