Import scipy as a last resort in stats.py (should fix bugs like #294 if scipy is installed but not used)

docs/changelog.rst

@@ -2,6 +2,12 @@
 Changelog
 =========
 
+2.1.1
+=====
+
+* Import scipy as a last resort in stats.py (should fix bugs like #294 if scipy is installed but not used)
+
+
 2.1.0
 =====
 

pygal/stats.py

@@ -1,8 +1,4 @@
 from math import log, sqrt, pi
-try:
-    from scipy import stats
-except ImportError:
-    stats = None
 
 
 def erfinv(x, a=.147):
@@ -24,6 +20,11 @@ def norm_ppf(x):
 
 
 def ppf(x, n):
+    try:
+        from scipy import stats
+    except ImportError:
+        stats = None
+
     if stats:
         if n < 30:
             return stats.t.ppf(x, n)

pygal/view.py

@@ -368,8 +368,8 @@ class XLogView(View):
         if x is None or x <= 0 or self.log10_xmax - self.log10_xmin == 0:
             return None
         return (self.width *
-                (log10(x) - self.log10_xmin)
-                / (self.log10_xmax - self.log10_xmin))
+                (log10(x) - self.log10_xmin) /
+                (self.log10_xmax - self.log10_xmin))
 
 
 class XYLogView(XLogView, LogView):