Failed DNF dependency in Fedora

[Clodoaldo Neto <clodoaldo.pinto.neto@xxxxxxxxx>]

While installing Psycopg2 for Python2 in Fedora 26 having Postgresql 9.6:

# dnf install python-psycopg2
Last metadata expiration check: 0:01:52 ago on Sat 15 Jul 2017 08:30:26 AM -03.
Error:
 Problem: conflicting requests
  - nothing provides postgresql94-libs needed by python-psycopg2-2.7.1-1.f26.x86_64

Psycopg2 for Python3 installs cleanly.

Regards, Clodoaldo Pinto Neto