X-Git-Url: https://wannabe.guru.org/gitweb/?a=blobdiff_plain;f=histogram.py;h=c673e161a6318fabeb155e1cdb2a2591abe730e0;hb=d2376b4dd7a8bba0dfc878578086faeab83c6f5b;hp=d45e93f328185f869c2b3af4cc832db280d14428;hpb=a4bf4d05230474ad14243d67ac7f8c938f670e58;p=python_utils.git

diff --git a/histogram.py b/histogram.py
index d45e93f..c673e16 100644
--- a/histogram.py
+++ b/histogram.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+# -*- coding: utf-8 -*-
 
 import math
 from numbers import Number
@@ -100,9 +101,9 @@ class SimpleHistogram(Generic[T]):
                 max_label_width = label_width
             if start == last_bucket_start:
                 break
-        assert max_label_width
-        assert lowest_start
-        assert highest_end
+        assert max_label_width is not None
+        assert lowest_start is not None
+        assert highest_end is not None
 
         sigma_label = f'[{label_formatter}..{label_formatter}): ' % (
             lowest_start,