From 5919f9d5fb0460348539b114d19f041012197c5a Mon Sep 17 00:00:00 2001
From: jbrockmendel <jbrockmendel@gmail.com>
Date: Wed, 31 Jul 2019 05:20:15 -0700
Subject: [PATCH] remove undesired values kwarg (#27625)

---
 pandas/core/internals/blocks.py | 63 ++++++++++++++++-----------------
 1 file changed, 30 insertions(+), 33 deletions(-)

diff --git a/pandas/core/internals/blocks.py b/pandas/core/internals/blocks.py
index 62b08fd1712c8..86db4b0f82e25 100644
--- a/pandas/core/internals/blocks.py
+++ b/pandas/core/internals/blocks.py
@@ -552,10 +552,10 @@ def f(m, v, i):
 
         return self.split_and_operate(None, f, False)
 
-    def astype(self, dtype, copy=False, errors="raise", values=None, **kwargs):
-        return self._astype(dtype, copy=copy, errors=errors, values=values, **kwargs)
+    def astype(self, dtype, copy=False, errors="raise", **kwargs):
+        return self._astype(dtype, copy=copy, errors=errors, **kwargs)
 
-    def _astype(self, dtype, copy=False, errors="raise", values=None, **kwargs):
+    def _astype(self, dtype, copy=False, errors="raise", **kwargs):
         """Coerce to the new type
 
         Parameters
@@ -616,42 +616,39 @@ def _astype(self, dtype, copy=False, errors="raise", values=None, **kwargs):
                 return self.copy()
             return self
 
-        if values is None:
-            try:
-                # force the copy here
-                if self.is_extension:
-                    values = self.values.astype(dtype)
-                else:
-                    if issubclass(dtype.type, str):
-
-                        # use native type formatting for datetime/tz/timedelta
-                        if self.is_datelike:
-                            values = self.to_native_types()
+        try:
+            # force the copy here
+            if self.is_extension:
+                values = self.values.astype(dtype)
+            else:
+                if issubclass(dtype.type, str):
 
-                        # astype formatting
-                        else:
-                            values = self.get_values()
+                    # use native type formatting for datetime/tz/timedelta
+                    if self.is_datelike:
+                        values = self.to_native_types()
 
+                    # astype formatting
                     else:
-                        values = self.get_values(dtype=dtype)
+                        values = self.get_values()
 
-                    # _astype_nansafe works fine with 1-d only
-                    vals1d = values.ravel()
-                    values = astype_nansafe(vals1d, dtype, copy=True, **kwargs)
+                else:
+                    values = self.get_values(dtype=dtype)
 
-                # TODO(extension)
-                # should we make this attribute?
-                if isinstance(values, np.ndarray):
-                    values = values.reshape(self.shape)
+                # _astype_nansafe works fine with 1-d only
+                vals1d = values.ravel()
+                values = astype_nansafe(vals1d, dtype, copy=True, **kwargs)
 
-            except Exception:
-                # e.g. astype_nansafe can fail on object-dtype of strings
-                #  trying to convert to float
-                if errors == "raise":
-                    raise
-                newb = self.copy() if copy else self
-            else:
-                newb = make_block(values, placement=self.mgr_locs, ndim=self.ndim)
+            # TODO(extension)
+            # should we make this attribute?
+            if isinstance(values, np.ndarray):
+                values = values.reshape(self.shape)
+
+        except Exception:
+            # e.g. astype_nansafe can fail on object-dtype of strings
+            #  trying to convert to float
+            if errors == "raise":
+                raise
+            newb = self.copy() if copy else self
         else:
             newb = make_block(values, placement=self.mgr_locs, ndim=self.ndim)