I double checked to make sure that you are not right changed the document Root to what it is supposed to be and re ran the test and it failed...
$ sudo apachectl -k restart
$ sudo certbot certonly --webroot
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Please enter the domain name(s) you would like on your certificate (comma and/or
space separated) (Enter 'c' to cancel): emplois.kagan.ch
Requesting a certificate for emplois.kagan.ch
Input the webroot for emplois.kagan.ch: (Enter 'c' to cancel): /usr/home/sixpiece/python/emploiquebec/
Certbot failed to authenticate some domains (authenticator: webroot). The Certificate Authority reported these problems:
Domain: emplois.kagan.ch
Type: unauthorized
Detail: 108.61.177.246: Invalid response from http://emplois.kagan.ch/.well-known/acme-challenge/RBdb4MBHWf0fuvDyBRZLAeIyXC8fUmWVNB9915wpBMo: 404
Hint: The Certificate Authority failed to download the temporary challenge files created by Certbot. Ensure that the listed domains serve their content from the provided --webroot-path/-w and that files created there can be downloaded from the internet.
Some challenges have failed.
Ask for help or search for solutions at https://community.letsencrypt.org. See the logfile /var/log/letsencrypt/letsencrypt.log or re-run Certbot with -v for more details.
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