Patch for ModuleNotFound issue with six (#553)

* Fix six issue

* Bump version: 2.7.1 → 2.7.2

* Patch for ModuleNotFound issue for six

* Made version >= 1.3.0

* Don't pin six version

Author: Ross Mechanic

CHANGES.rst

@@ -1,6 +1,10 @@
 Changes
 =======
 
+2.7.2 (2019-04-17)
+------------------
+- Fixed ModuleNotFound issue for `six` (gh-553)
+
 2.7.1 (2019-04-16)
 ------------------
 - Added the possibility to create a relation to the original model (gh-536)

setup.cfg

@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 2.7.1
+current_version = 2.7.2
 commit = True
 tag = True
 tag_name = {new_version}

setup.py

@@ -2,7 +2,8 @@
 import simple_history
 
 tests_require = [
-    'Django>=1.11', 'WebTest==2.0.24', 'django-webtest==1.8.0', 'mock==1.0.1']
+    'Django>=1.11', 'WebTest==2.0.24', 'django-webtest==1.8.0', 'mock==1.0.1',
+    'six']
 
 setup(
     name='django-simple-history',
@@ -39,6 +40,7 @@
     ],
     python_requires=">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*",
     tests_require=tests_require,
+    install_requires=["six"],
     include_package_data=True,
     test_suite='runtests.main',
 )

simple_history/__init__.py

@@ -1,6 +1,6 @@
 from __future__ import unicode_literals
 
-__version__ = "2.7.1"
+__version__ = "2.7.2"
 
 
 def register(