Remove humanize and use a relative time thing that @balloob found on Github

homeassistant/helpers/template.py

@@ -6,8 +6,6 @@ import logging
 import jinja2
 from jinja2.sandbox import ImmutableSandboxedEnvironment
 
-import humanize
-
 from homeassistant.components import group
 from homeassistant.const import STATE_UNKNOWN, ATTR_LATITUDE, ATTR_LONGITUDE
 from homeassistant.core import State
@@ -42,7 +40,7 @@ def render_with_possible_json_value(hass, template, value,
 
 def relative_time(end_time):
     """Return a relative (human readable) timestamp for the given time."""
-    return humanize.naturaltime(dt_util.now() - end_time)
+    return dt_util.get_age(end_time)
 
 
 def render(hass, template, variables=None, **kwargs):

homeassistant/util/dt.py

@@ -152,3 +152,49 @@ def parse_time(time_str):
     except ValueError:
         # ValueError if value cannot be converted to an int or not in range
         return None
+
+
+# Found in this gist: https://gist.github.com/zhangsen/1199964
+def get_age(date):
+    """
+    Take a datetime and return its "age" as a string.
+
+    The age can be in second, minute, hour, day, month or year. Only the
+    biggest unit is considered, e.g. if it's 2 days and 3 hours, "2 days" will
+    be returned.
+    Make sure date is not in the future, or else it won't work.
+    """
+    def formatn(number, unit):
+        """Add "unit" if it's plural."""
+        if number == 1:
+            return "1 %s" % unit
+        elif number > 1:
+            return "%d %ss" % (number, unit)
+
+    def q_n_r(first, second):
+        """Return quotient and remaining."""
+        return first // second, first % second
+
+    # pylint: disable=too-few-public-methods
+    class PrettyDelta:
+        """A class for relative times."""
+
+        def __init__(self, subDt):
+            delta = now() - subDt
+            self.day = delta.days
+            self.second = delta.seconds
+
+            self.year, self.day = q_n_r(self.day, 365)
+            self.month, self.day = q_n_r(self.day, 30)
+            self.hour, self.second = q_n_r(self.second, 3600)
+            self.minute, self.second = q_n_r(self.second, 60)
+
+        def format(self):
+            """Format a datetime to relative time string."""
+            for period in ['year', 'month', 'day', 'hour', 'minute', 'second']:
+                number = getattr(self, period)
+                if number > 0:
+                    return formatn(number, period)
+            return "0 second"
+
+    return PrettyDelta(date).format()

requirements_all.txt

@@ -6,7 +6,6 @@ pip>=7.0.0
 vincenty==0.1.4
 jinja2>=2.8
 voluptuous==0.8.9
-humanize==0.5.1
 
 # homeassistant.components.isy994
 PyISY==1.0.5