## Observation
yamllint tries to read out information during runtime using "pkg_resources"
which is supplied by setuptools, if installed, but the package does not pull in
this dependency.
## Steps to reproduce
```
$ docker run --rm -it registry.opensuse.org/opensuse/tumbleweed
5da80e2533ad:/ # zypper -n in python3-yamllint && yamllint
Retrieving repository 'openSUSE-Tumbleweed-Non-Oss' metadata
............................................[done]
Building repository 'openSUSE-Tumbleweed-Non-Oss' cache
.................................................[done]
Retrieving repository 'openSUSE-Tumbleweed-Oss' metadata
................................................[done]
Building repository 'openSUSE-Tumbleweed-Oss' cache
.....................................................[done]
Retrieving repository 'openSUSE-Tumbleweed-Update' metadata
.............................................[done]
Building repository 'openSUSE-Tumbleweed-Update' cache
..................................................[done]
Loading repository data...
Reading installed packages...
Resolving package dependencies...
The following 9 NEW packages are going to be installed:
libexpat1 libpython3_7m1_0 libuuid1 libyaml-0-2 python-rpm-macros
python3-PyYAML python3-base
python3-pathspec python3-yamllint
9 new packages to install.
Overall download size: 8.9 MiB. Already cached: 0 B. After the operation,
additional 34.5 MiB will be used.
Continue? [y/n/v/...? shows all options] (y): y
Retrieving package libexpat1-2.2.7-1.2.x86_64
(1/9), 87.7 KiB (206.3 KiB unpacked)
Retrieving: libexpat1-2.2.7-1.2.x86_64.rpm
..............................................................[done]
Retrieving package libpython3_7m1_0-3.7.3-1.3.x86_64
(2/9), 1.1 MiB ( 3.2 MiB unpacked)
Retrieving: libpython3_7m1_0-3.7.3-1.3.x86_64.rpm
.......................................................[done]
Retrieving package libuuid1-2.34-2.1.x86_64
(3/9), 50.3 KiB ( 30.1 KiB unpacked)
Retrieving: libuuid1-2.34-2.1.x86_64.rpm
................................................................[done]
Retrieving package libyaml-0-2-0.2.2-2.1.x86_64
(4/9), 53.9 KiB (126.3 KiB unpacked)
Retrieving: libyaml-0-2-0.2.2-2.1.x86_64.rpm
............................................................[done]
Retrieving package python-rpm-macros-20190610.2ee3233-1.2.noarch
(5/9), 25.8 KiB ( 47.0 KiB unpacked)
Retrieving: python-rpm-macros-20190610.2ee3233-1.2.noarch.rpm
...........................................[done]
Retrieving package python3-base-3.7.3-1.3.x86_64
(6/9), 7.2 MiB ( 29.7 MiB unpacked)
Retrieving: python3-base-3.7.3-1.3.x86_64.rpm
...............................................[done (4.5 MiB/s)]
Retrieving package python3-pathspec-0.5.9-1.4.noarch
(7/9), 47.0 KiB (188.0 KiB unpacked)
Retrieving: python3-pathspec-0.5.9-1.4.noarch.rpm
.......................................................[done]
Retrieving package python3-PyYAML-5.1.2-1.1.x86_64
(8/9), 189.8 KiB (739.6 KiB unpacked)
Retrieving: python3-PyYAML-5.1.2-1.1.x86_64.rpm
.........................................................[done]
Retrieving package python3-yamllint-1.17.0-1.1.noarch
(9/9), 71.9 KiB (294.0 KiB unpacked)
Retrieving: python3-yamllint-1.17.0-1.1.noarch.rpm
......................................................[done]
Checking for file conflicts:
............................................................................[done]
(1/9) Installing: libexpat1-2.2.7-1.2.x86_64
............................................................[done]
(2/9) Installing: libpython3_7m1_0-3.7.3-1.3.x86_64
.....................................................[done]
(3/9) Installing: libuuid1-2.34-2.1.x86_64
..............................................................[done]
(4/9) Installing: libyaml-0-2-0.2.2-2.1.x86_64
..........................................................[done]
(5/9) Installing: python-rpm-macros-20190610.2ee3233-1.2.noarch
.........................................[done]
(6/9) Installing: python3-base-3.7.3-1.3.x86_64
.........................................................[done]
(7/9) Installing: python3-pathspec-0.5.9-1.4.noarch
.....................................................[done]
(8/9) Installing: python3-PyYAML-5.1.2-1.1.x86_64
.......................................................[done]
(9/9) Installing: python3-yamllint-1.17.0-1.1.noarch
....................................................[done]
Traceback (most recent call last):
File "/usr/bin/yamllint", line 6, in <module>
from pkg_resources import load_entry_point
ModuleNotFoundError: No module named 'pkg_resources'
```
```