Drop python-six dependency #350

Job	Run time
Get Fedora Releases	5s
Mageia 8	6m 18s
OpenMandriva Cooker	15s
openSUSE Tumbleweed	2m 9s
Arch Linux	2m 13s
Unit Tests (Devel Fedora) (44)	3m 18s
Installed RPM Tests (Stable Fedora) (x86_64, 43)	2m 52s
Installed RPM Tests (Stable Fedora) (x86_64, 42)	3m 57s
Installed RPM Tests (Devel Fedora) (x86_64, 44)	3m 30s
Unit Tests (Devel Fedora) (45)	3m 11s
Installed RPM Tests (Devel Fedora) (x86_64, 45)	3m 14s
Unit Tests (Stable Fedora) (43)	3m 37s
Unit Tests (Stable Fedora) (42)	3m 43s
Mageia 8	2m 44s
Get Fedora Releases	5s
openSUSE Tumbleweed	2m 9s
Arch Linux	2m 13s
Installed RPM Tests (Devel Fedora) (x86_64, 45)	3m 14s
Installed RPM Tests (Stable Fedora) (x86_64, 42)	3m 57s
Installed RPM Tests (Devel Fedora) (x86_64, 44)	3m 30s
Unit Tests (Stable Fedora) (42)	3m 43s
Unit Tests (Devel Fedora) (44)	3m 18s
Installed RPM Tests (Stable Fedora) (x86_64, 43)	2m 52s
Unit Tests (Stable Fedora) (43)	3m 37s
Unit Tests (Devel Fedora) (45)	3m 11s
OpenMandriva Cooker	15s
	1h 13m 10s

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