Run Flask using python3 not python

Question

How can you run Flask app which uses a specific version of python?

On my env \"python\" = python2.7 and \"python3\" = python3.6. I have installed Flask using pip3. I

Answer 1

What I did was:

1. which flask, to find flask binary executable path (in my case /home/myuser/.local/bin/flask

2. edit /home/myuser/.local/bin/flask, changing the first line from #!/usr/bin/python to #!/usr/bin/python3

In summary, making flask use python3, regardless of which shebang was specified in other scripts, since those scripts are not the entrypoint of execution, but flask is. I didn't have to change the shebang in any of my scripts, just the flask executable.