Keep simpleserver active even on syntax errors

Question

Is there a way to configure the simple-server that Flask uses to not exit on every single syntax error?

app = Flask(__name__)
app.run(host='0.0.0.0', debug=True, use_debugger=True, passthrough_errors=False);

Currently I'm using this setup for the simple-server. Setting passthrough_errors to False means most of the errors actually keeps the process alive so that I can use the interactive debugger, syntax errors still exits the program though. I've tried different configuration values but I have not found anything that works. Thanks!

Answer 1

I just posted a Flask-Failsafe extension to solve this exact issue.

I hit this all the time and ran across your post earlier looking for a solution. After a bit of experimenting I hacked up a decorator you can use to wrap your initialization code so that if it fails the reloader will keep working. Check it out and let me know what you think.