[tests] Enable pywikibot-core-tox-docker

Bug: T257409
Change-Id: Id4de78eddda90c34bf5df90474f73d4c875df348
---
M setup.py
M tox.ini
2 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/setup.py b/setup.py
index fe41208..a75dd69 100644
--- a/setup.py
+++ b/setup.py
@@ -170,11 +170,6 @@
     if 'sdist' not in sys.argv:
         return version
 
-    if PY2:
-        raise RuntimeError(
-            'A new distribution cannot be created with Python {}'
-            .format(sys.version.split(None, 1)[0]))
-
     # validate version for sdist
     from contextlib import suppress
     from subprocess import run, PIPE
@@ -188,7 +183,7 @@
     for tag in ('stable', 'python2'):
         with suppress(ValueError):
             tags.remove(tag)
-        
+
     last_tag = tags[-1]
 
     warnings = []
diff --git a/tox.ini b/tox.ini
index 3791b86..3fa6d46 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,7 +5,7 @@
 skip_missing_interpreters = True
 envlist =
     commit-message
-    flake8-{py3}
+    flake8-{py35}
     doctest-{py35}
     test-{py27,py35}
 
@@ -14,7 +14,7 @@
 # Others are run in their own individual jobs on WM Jenkins
 envlist =
     commit-message
-    flake8-{py3}
+    flake8-{py35}
 
 [params]
 doctest_skip = --ignore-files=(gui\.py|eventstreams\.py)

