Use codecs module for text-based rot13

paradocx/package.py

@@ -56,6 +56,7 @@ def quickstart(self):
 
 if __name__ == '__main__':
     import sys
+    import codecs
     from textwrap import dedent
     from this import s as zen_encoded
     from openpack.basepack import CoreProperties
@@ -69,7 +70,7 @@ def quickstart(self):
         </w:p>
         """
     ).lstrip()
-    raw_zen = zen_encoded.decode('rot13')
+    raw_zen = codecs.decode(zen_encoded, 'rot13')
     zen = "".join(trun % line for line in raw_zen.splitlines())
 
     body = (
@@ -93,7 +94,7 @@ def quickstart(self):
         % (sys.version, zen)
     )
     op = WordPackage()
-    op.start_part.data = body.decode('utf-8')
+    op.start_part.data = body
     cp = CoreProperties(op, '/docProps/core.xml')
     cp.encoding = 'utf-8'
     op.add(cp)

test/conftest.py

@@ -13,21 +13,21 @@ def get_resource_stream(name):
     return pkg_resources.resource_stream(__name__, os.path.join('resources', name))
 
 
-sample_filename = 'sample.docx'
+_sample_filename = 'sample.docx'
 
 
 @pytest.fixture
-def sample_stream(request):
-    return get_resource_stream(sample_filename)
+def sample_stream():
+    return get_resource_stream(_sample_filename)
 
 
 @pytest.fixture
-def sample_filename(request):
-    return get_resource_filename(sample_filename)
+def sample_filename():
+    return get_resource_filename(_sample_filename)
 
 
 @pytest.fixture
-def table_data(request):
+def table_data():
     data = [
         ['Name', 'Age'],
         ['Christian', 29],