diff --git a/README.md b/README.md
index e032a87..89e59be 100644
--- a/README.md
+++ b/README.md
@@ -94,3 +94,15 @@ for a in [False, True]:
 		for c in [1, 2, 3]:
 			....
 ```
+
+Additionally, an option loop (or combination thereof) can be reset using the copy
+interface:
+
+```python
+d1 = {'lang' : ['c'], 'doThingX' : [True, False]}
+oploop1 = optionloop(d1)
+
+# iterate through 1
+
+oploop2 = oploop1.copy()
+```
\ No newline at end of file
diff --git a/conda.recipe/meta.yaml b/conda.recipe/meta.yaml
index 1baa4b9..65d35b5 100644
--- a/conda.recipe/meta.yaml
+++ b/conda.recipe/meta.yaml
@@ -15,6 +15,7 @@ requirements:
   build:
     - python >=2.7,<3|>=3.5,{{PY_VER}}*
     - setuptools
+    - six
 
   run:
     - python {{PY_VER}}*
diff --git a/optionloop/_version.py b/optionloop/_version.py
index 36be4dc..1deade3 100644
--- a/optionloop/_version.py
+++ b/optionloop/_version.py
@@ -1,4 +1,4 @@
-__version_info__ = (1, 0, 5, '')
+__version_info__ = (1, 0, 6, '')
 __version__ = '.'.join(map(str, __version_info__[:3]))
 if len(__version_info__) == 4:
     __version__ += __version_info__[-1]
diff --git a/optionloop/optionloop.py b/optionloop/optionloop.py
index 14326b4..a47b264 100644
--- a/optionloop/optionloop.py
+++ b/optionloop/optionloop.py
@@ -81,6 +81,7 @@
 """
 
 from collections import defaultdict
+import six
 
 
 class OptionLoop(object):
@@ -149,7 +150,7 @@ def __init__(self, initializing_dictionary, default_dict_factory=None):
         self.mydict = initializing_dictionary.copy()
         self.index = 0
         self.end_index = None
-        for key, value in self.mydict.iteritems():
+        for key, value in six.iteritems(self.mydict):
             if isinstance(value, (str, bytes)):
                 self.mydict[key] = [value]
                 size = 1
@@ -178,9 +179,9 @@ def __next__(self):
         else:
             value_list = {}
         startlen = 1
-        if self.index < self.end_index:
-            for key, value in self.mydict.iteritems():
-                value_list[key] = value[(self.index / startlen) % len(value)]
+        if self.end_index is not None and self.index < self.end_index:
+            for key, value in six.iteritems(self.mydict):
+                value_list[key] = value[int(self.index / startlen) % len(value)]
                 startlen *= len(value)
 
             self.index += 1
diff --git a/setup.py b/setup.py
index cd5652d..3aaee9b 100644
--- a/setup.py
+++ b/setup.py
@@ -21,6 +21,10 @@
     print('Warning: pypandoc module not found, could not convert Markdown to RST')
     long_description = desc
 
+install_requires = [
+    'six'
+]
+
 tests_require = [
     'nose',
 ]
@@ -37,6 +41,7 @@
     packages=['optionloop', 'optionloop.tests'],
     zip_safe=True,
     test_suite='nose.collector',
+    install_requires=install_requires,
     tests_require=tests_require,
     classifiers=[
         'Development Status :: 5 - Production/Stable',