1 files changed, 3 insertions, 4 deletions
diff --git a/Lib/statistics.py b/Lib/statistics.py
index 632127a..40c72db 100644
--- a/Lib/statistics.py
+++ b/Lib/statistics.py
@@ -335,10 +335,7 @@ class _nroot_NS:
         """Handle nth root of Reals, treated as a float."""
         assert isinstance(n, int) and n > 1
         if x < 0:
-            if n%2 == 0:
-                raise ValueError('domain error: even root of negative number')
-            else:
-                return -_nroot_NS.nroot(-x, n)
+            raise ValueError('domain error: root of negative number')
         elif x == 0:
             return math.copysign(0.0, x)
         elif x > 0:
@@ -433,6 +430,8 @@ class _nroot_NS:
             else:
                 # Preserve the input NAN.
                 return x
+        if x < 0:
+            raise ValueError('domain error: root of negative number')
         if x.is_infinite():
             return x
         # FIXME this hasn't had the extensive testing of the float