I have been working on configuring my Flask web application to run on an Ubuntu machine, to move away from the framework's development server to a production server.
To help me configure WSGI and nginx, I followed this guide posted from DigitalOcean
Following the guide, everything works great! Note however in this example, the instance of Flask is named 'application', a bit different than the 'app' that is commonly used almost everywhere (such as on the Flask website and documentation).
Contents of myflaskapp.py:
from flask import Flask
application = Flask(__name__)
@application.route("/")
def hello():
return "Hello World!"
if __name__ == "__main__":
application.run()
Contents of wsgi.py:
from weather import application
if __name__ == "__main__":
application.run()
However, if I were to change the instance names in the above files from 'application' to 'app' I receive an 'Internal Server Error' with nothing in the log file indicating a reason why.
from flask import Flask
app = Flask(__name__)
@app.route("/")
def hello():
return "Hello World!"
if __name__ == "__main__":
app.run()
and
from myflaskapp import app
if __name__ == "__main__":
app.run()
According to the comments in the tutorial posted above, a couple of other users were experiencing the same issues. I can't understand why this particular server requires the name to be 'application' - it's something I can live with, but it just seems odd.
Thanks for any ideas you might be able to provide!
Assuming that you mean uWSGI, it looks for something named application. If you'd like to give it a different name, you can specify one in your config:
[uwsgi]
callable = app