On Wednesday 19 June at 10.30 am UTC,we are making a major systems upgrade to PythonAnywhere. This is expected to require 20 minutes of downtime. In the long run this will result in increased stability and improved performance. We have been testing this for the last month and are comfortable that it is now ready for release.
Because PythonAnywhere is a very open environment it is difficult to predict every possible problem that might arise. But if anything does happen we aim to fix it immediately.
After the release process we will be automatically testing that all Web Developer accounts' custom domain web apps are returning a non error HTTP response. If you see anything unusual please get in touch with us directly (support@pythonanywhere.com) and let us know.
Wish us luck :-)