Express age in years

gratipay/__init__.py

@@ -20,20 +20,10 @@
              'eight', 'nine']
 ORDINALS = ['zeroth', 'first', 'second', 'third', 'fourth', 'fifth', 'sixth',
             'seventh', 'eighth', 'ninth', 'tenth']
-MONTHS = [None, 'January', 'February', 'March', 'April', 'May', 'June', 'July',
-          'August', 'September', 'October', 'November', 'December']
 
-def age():
+def age_in_years():
     today = datetime.date.today()
-    nmonths = (12 - BIRTHDAY.month) \
-            + (12 * (today.year - BIRTHDAY.year - 1)) \
-            + (today.month)
-    plural = 's' if nmonths != 1 else ''
-    if nmonths < 10:
-        nmonths = CARDINALS[nmonths]
-    else:
-        nmonths = str(nmonths)
-    return "%s month%s" % (nmonths, plural)
+    return (today - BIRTHDAY).days // 365
 
 
 class NotSane(Exception):

www/about/stats.spt

@@ -4,7 +4,7 @@ from __future__ import unicode_literals
 import datetime
 import locale
 from aspen import json
-from gratipay import age
+from gratipay import age_in_years
 
 CARDINALS = ["zero", "one", "two", "three", "four", "five", "six", "seven",
              "eight", "nine"]
@@ -184,8 +184,12 @@ def out():
 
 {% block content %}
 
-    <p>Gratipay is <b>{{ age() }}</b> old and has <b>{{ nactive }} active
-    users</b>.</p>
+    <p>{{ _( "Gratipay is {b}{age}+ years{_b} old and has {b}{nactive} active users{_b}."
+           , age=age_in_years()
+           , nactive=nactive
+           , b='<b>'|safe
+           , _b='</b>'|safe
+            ) }}</p>
 
     <p>
         {{ ngivers }} participants gave money in the past week.<br />