Description of problem:


when installing certbot in a container I see: 

```
  Running scriptlet: certbot-0.14.1-3.fc26.noarch                                                                                                                                                                                     50/50 
Traceback (most recent call last):
  File "/sbin/semanage", line 28, in <module>
    import seobject
  File "/usr/lib64/python3.6/site-packages/seobject.py", line 1046, in <module>
    class portRecords(semanageRecords):
  File "/usr/lib64/python3.6/site-packages/seobject.py", line 1048, in portRecords
    valid_types = list(list(sepolicy.info(sepolicy.ATTRIBUTE, "port_type"))[0]["types"])
  File "/usr/lib/python3.6/site-packages/sepolicy/__init__.py", line 193, in <genexpr>
    return ({
  File "/usr/lib64/python3.6/site-packages/setools/typeattrquery.py", line 65, in results
    for attr in self.policy.typeattributes():
AttributeError: 'NoneType' object has no attribute 'typeattributes'
```


Version-Release number of selected component (if applicable):
certbot-0.14.1-3.fc26.noarch

```
[root@origin-master-1 ~]# docker images
REPOSITORY                          TAG                 IMAGE ID            CREATED             SIZE
registry.fedoraproject.org/fedora   26                  c33114392d5e        3 weeks ago         231 MB
[root@origin-master-1 ~]# docker inspect c33114392d5e 
[
    {
        "Id": "sha256:c33114392d5e5e9ec69887a51b8397ca225e607cd716198912f9ece2235befa5",
        "RepoTags": [
            "registry.fedoraproject.org/fedora:26"
        ],
        "RepoDigests": [
            "registry.fedoraproject.org/fedora@sha256:6c358bee3b2591809aefbd2d1a865e2c81db0eed39ff3cdba77b911f5f938d7a"
        ],
        "Parent": "",
        "Comment": "Created by Image Factory",
        "Created": "2017-07-07T14:33:42Z",

```


How reproducible:
always

Steps to Reproduce:
1.  docker run -it -p80:80 -v /tmp/stuff:/workdir/ registry.fedoraproject.org/fedora:26 /bin/bash 
2. dnf install -y certbot
3.