For legacy reasons, one of my projects is still running tests against Python 3.3 for the current (long-lived) stable branch, and the only way to do that on Travis was to select the Trusty image.
This build from yesterday failed on py3.3 only with
SSLError, presumably a result of the recent Let’s Encrypt certificate expiration on 30 Sept. (The chain is ISRG X1 → R3 → leaf.) Is it possible to update Travis’ image for Trusty to exclude the expired root certificate?
Alternatively, a way to install Python 3.3 on Xenial or newer would help.