Merge pull request #79 from ariannedee/master

Fix some Python3.6 syntax so it works in 3.5

edivorce/apps/core/templatetags/input_field.py

@@ -63,7 +63,7 @@ def input_field(context, type, name='', value='', multiple='', **kwargs):
     """
     Usage:  when specifying data attributes in templates, use "data_" instead of "data-".
     """
-    error = context.get(f'{name}_error', False)
+    error = context.get(name + '_error', False)
     if error:
         if 'class' in kwargs:
             kwargs['class'] += ' error'