refactor thanks to CodeClimate

satella/coding/transforms/interpol.py

@@ -24,22 +24,23 @@ def linear_interpolate(series: tp.Sequence[tp.Tuple[K, U]], t: K,
             return series[0][1]
         else:
             raise ValueError('t smaller than t_min')
-    if t > series[-1][0]:
+    elif t > series[-1][0]:
         if clip:
             return series[-1][1]
         else:
             raise ValueError('t greater than t_max')
 
     if t == series[0][0]:
-        return series[0][1]
+        v = series[0][1]
+    else:
+        i = bisect.bisect_left([y[0] for y in series], t) - 1
 
-    i = bisect.bisect_left([y[0] for y in series], t) - 1
-
-    if i == len(series) - 1:
-        return series[-1][1]
-
-    t1, v1 = series[i]
-    t2, v2 = series[i + 1]
+        if i == len(series) - 1:
+            v = series[-1][1]
+        else:
+            t1, v1 = series[i]
+            t2, v2 = series[i + 1]
 
-    assert t1 <= t <= t2, 'Series not sorted!'
-    return (v2 - v1) / (t2 - t1) * (t - t1) + v1
+            assert t1 <= t <= t2, 'Series not sorted!'
+            v = (v2 - v1) / (t2 - t1) * (t - t1) + v1
+    return v