Testing explicitly for None as these values can be zero

9 years ago · 3a4376825b
1 changed files with 3 additions and 2 deletions
--- a/pygal/graph/xy.py
+++ b/pygal/graph/xy.py
@ -122,8 +122,9 @@ class XY(Line, Dual):
            else:
                xrng = None

-        if xrng:
+        # these values can also be 0 (zero), so testing explicitly for None
+        if xrng is not None:
            self._box.xmin, self._box.xmax = xmin, xmax

-        if yrng:
+        if yrng is not None:
            self._box.ymin, self._box.ymax = ymin, ymax