From 05172fdd7b88fdb7e093148f55ed34f048160092 Mon Sep 17 00:00:00 2001
From: jbrockmendel <jbrockmendel@gmail.com>
Date: Sat, 7 Mar 2020 15:37:48 -0800
Subject: [PATCH] CLN: remove unnecessary to_dense

---
 pandas/io/formats/format.py | 2 --
 1 file changed, 2 deletions(-)

diff --git a/pandas/io/formats/format.py b/pandas/io/formats/format.py
index 2a528781f8c93..c879eaeda64e0 100644
--- a/pandas/io/formats/format.py
+++ b/pandas/io/formats/format.py
@@ -1352,8 +1352,6 @@ def format_values_with(float_format):
             values = self.values
             is_complex = is_complex_dtype(values)
             mask = isna(values)
-            if hasattr(values, "to_dense"):  # sparse numpy ndarray
-                values = values.to_dense()
             values = np.array(values, dtype="object")
             values[mask] = na_rep
             imask = (~mask).ravel()