Description of problem:
Following instructions at 
https://fedoraproject.org/wiki/Getting_started_with_virtualization?rd=Virtualization_Quick_Start
to get started with/learn about virtualization. 
1. Installed the virtualization group via 
  $ su -c "dnf install @virtualization"
2. Started libvirtd successfully
3a. Tried to look at the help 
  $ virt-install --help 
3b. ...as well as tried the graphical interface via 
  $ virt-manager 
Both  complain that:

> from .packages.urllib3.exceptions import DependencyWarning
> ImportError: cannot import name DependencyWarning

According to pip, urllib3 is already installed.

Version-Release number of selected component:
virt-manager-1.4.0-3.fc24

Additional info:
reporter:       libreport-2.7.2
cmdline:        /usr/bin/python2 /usr/share/virt-manager/virt-manager
dso_list:       virt-manager-common-1.4.0-3.fc24.noarch
executable:     /usr/share/virt-manager/virt-manager
kernel:         4.7.4-200.fc24.x86_64
pkg_fingerprint: 73BD E983 81B4 6521
pkg_vendor:     Fedora Project
runlevel:       N 5
type:           Python
uid:            1000

Truncated backtrace:
#1 <module> in /usr/lib/python2.7/site-packages/requests/__init__.py:61
#2 <module> in /usr/share/virt-manager/virtinst/urlfetcher.py:34
#3 <module> in /usr/share/virt-manager/virtinst/distroinstaller.py:23
#4 <module> in /usr/share/virt-manager/virtinst/__init__.py:89
#5 <module> in /usr/share/virt-manager/virt-manager:33