:date: 2017-09-16

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Saturday, September 16, 2017
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After `this failure <https://travis-ci.org/lino-framework/welfare/jobs/276021210>`__ I (partly) futurized :ref:`welfare` by applying the following::

    $ futurize -nw1 .
    $ futurize -nw -f libfuturize.fixes.fix_unicode_keep_u -f libfuturize.fixes.fix_future_builtins .

I added Python 3 to the :xfile:`.travis.xml` of :ref:`voga`. And then
also ran a limited futurize on it.

We received the following warning mail every day::

    /etc/cron.daily/certbot:
    Saving debug log to /var/log/letsencrypt/letsencrypt.log
    Cert not yet due for renewal
    Cert not yet due for renewal

    -------------------------------------------------------------------------------
    Processing /etc/letsencrypt/renewal/ff.example.conf
    -------------------------------------------------------------------------------

    -------------------------------------------------------------------------------
    Processing /etc/letsencrypt/renewal/example.org.conf
    -------------------------------------------------------------------------------

    The following certs are not due for renewal yet:
      /etc/letsencrypt/live/foo.example/fullchain.pem (skipped)
      /etc/letsencrypt/live/lino-framework.org/fullchain.pem (skipped)
    No renewals were attempted.


That's because a well-behaved daemon should not write to stdout.  I
changed the `/etc/cron.daily/certbot` script so that it redirects
output to :file:`/dev/null`::

    #!/bin/sh
    certbot renew --apache --renew-hook "service apache2 restart" > /dev/null