The link from https://help.pythonanywhere.com/pages/DeployExistingDjangoProject/#additional-configuration to https://help.pythonanywhere.com/pages/environment-variables-for-web-apps is broken (404 Not Found). This link should probably be updated to point to https://help.pythonanywhere.com/pages/EnvironmentVariables/.
The link from https://help.pythonanywhere.com/pages/DeployExistingDjangoProject/#additional-configuration to https://help.pythonanywhere.com/pages/environment-variables-for-web-apps is broken (404 Not Found).
This link should probably be updated to point to https://help.pythonanywhere.com/pages/EnvironmentVariables/.