Remove nose (pycontribs#103)

Co-authored-by: Sorin Sbarnea <ssbarnea@users.noreply.github.com>

tests/test_ansi2html.py

@@ -31,7 +31,6 @@
 from ansi2html.util import read_to_unicode
 
 from mock import patch
-from nose.tools import eq_
 
 import unittest
 import six
@@ -117,7 +116,8 @@ def test_inline_as_command(self, mock_stdout, mock_argv):
         with patch("sys.stdin", new_callable=lambda: six.StringIO(test_input)):
             main()
 
-        eq_(mock_stdout.getvalue(), test_input)
+        ms_val = mock_stdout.getvalue()
+        assert ms_val == test_input, "%r != %r" % (ms_val, test_input)
 
     @patch("sys.argv", new_callable=lambda: ["ansi2html", "--partial"])
     @patch("sys.stdout", new_callable=six.StringIO)

tox.ini

@@ -6,11 +6,11 @@ envlist =
 
 [testenv]
 deps =
-    nose
     mock
 sitepackages = False
 commands =
-    nosetests tests/test_ansi2html.py
+    python -m unittest tests/test_ansi2html.py
+
 [testenv:packaging]
 description =
     Do packaging/distribution. If tag is not present or PEP440 compliant upload to