bugs.python.org will be unavailable for up to 6 hours during this maintenance as it is transitioned between hosting providers.
Scheduled window is 2018-12-21 13:00-19:00 UTC.
The primary reason for the length of this maintenance window is to ensure consistency of the dataset during the migration. A full sync of the database, all attachments, files, and other various configurations is required and may take some time. Additionally a healthy margin has been added to address any in-flight issues.
Follow scheduled maintenance here: https://status.python.org/incidents/c564cgmzs0j1