docker-composer refuses to start because of the missing file in the ssl-match-hostname package

[Eugene Morozov]

docker-compose (installed from the Ubuntu 18.04 repositories) refuses to start because of the missing `__init__.py` from the package python-backports.ssl-match-hostname:

root@work:~# dpkg -L python-backports.ssl-match-hostname
/.
/usr
/usr/lib
/usr/lib/python2.7
/usr/lib/python2.7/dist-packages
/usr/lib/python2.7/dist-packages/backports
/usr/lib/python2.7/dist-packages/backports/ssl_match_hostname
/usr/lib/python2.7/dist-packages/backports/ssl_match_hostname/__init__.py
/usr/lib/python2.7/dist-packages/backports.ssl_match_hostname-3.5.0.1.egg-info
/usr/share
/usr/share/doc
/usr/share/doc/python-backports.ssl-match-hostname
/usr/share/doc/python-backports.ssl-match-hostname/README.txt
/usr/share/doc/python-backports.ssl-match-hostname/changelog.Debian.gz
/usr/share/doc/python-backports.ssl-match-hostname/copyright
/usr/share/python
/usr/share/python/ns
/usr/share/python/ns/python-backports.ssl-match-hostname
root@work:~#

The problem is solved by the command:
`touch /usr/lib/python2.7/dist-packages/backports/__init__.py`

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: python-backports.ssl-match-hostname 3.5.0.1-1
ProcVersionSignature: Ubuntu 4.15.0-38.41-generic 4.15.18
Uname: Linux 4.15.0-38-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: amd64
CurrentDesktop: KDE
Date: Thu Nov 1 07:46:03 2018
Dependencies:

InstallationDate: Installed on 2018-09-11 (50 days ago)
InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
PackageArchitecture: all
SourcePackage: backports.ssl-match-hostname
UpgradeStatus: No upgrade log present (probably fresh install)