Many Python packages use %python_provide macro
(https://fedoraproject.org/wiki/Packaging:Python#The_.25python_provide_macro)
which AFAIK causes that for example python2-wheel subpackage provides also python-wheel.

$ dnf provides python-wheel
python2-wheel-0.30.0a0-2.fc24.noarch : A built-package format for Python
Repo        : updates-testing

python-wheel-0.26.0-2.fc24.noarch : A built-package format for Python
Repo        : fedora

Now I'd expect that 'dnf install python-wheel' installs python2-wheel, but python-wheel gets installed instead.

$ dnf install python-wheel
...
Installed:
  python-wheel.noarch 0.26.0-2.fc24

$ rpm -q --provides python-wheel
python-wheel = 0.26.0-2.fc24

Even 'dnf update' correctly updates python-wheel to python2-wheel:

$ dnf update
...
Installing:
 python2-wheel noarch 0.30.0a0-2.fc24 updates-testing 86 k
     replacing  python-wheel.noarch 0.26.0-2.fc24
...
Installed:
  python2-wheel.noarch 0.30.0a0-2.fc24

$ rpm -q --provides python2-wheel
python-wheel = 0.30.0a0-2.fc24
python2-wheel = 0.30.0a0-2.fc24