Tox and Appveryor: Upgrade to Python 3.7 and drop 2.6

Python 2.6 was EOLed 5 years ago. https://www.python.org/dev/peps/pep-0361/#release-lifespan
2018-10-10 11:01:17 +02:00 · 2018-10-10 11:01:17 +02:00 · 5739c69054
parent fca22f9157
commit 5739c69054
1 changed files with 1 additions and 1 deletions
--- a/tox.ini
+++ b/tox.ini
@ -1,5 +1,5 @@
 [tox]
-envlist = py26,py27,py34,py36,pypy
+envlist = py27,py34,py37,pypy
 [testenv]
 changedir = .tox
 deps = -rrequirements-test.txt