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