remove append

Author: jreback

pandas/core/arrays/base.py

@@ -36,7 +36,6 @@ class ExtensionArray(object):
     * isna
     * take
     * copy
-    * append
     * _concat_same_type
 
     An additional method is available to satisfy pandas' internal,
@@ -581,34 +580,6 @@ def copy(self, deep=False):
         """
         raise AbstractMethodError(self)
 
-    def append(self, other):
-        """
-        Append a collection of Arrays together
-
-        Parameters
-        ----------
-        other : ExtensionArray or list/tuple of ExtensionArrays
-
-        Returns
-        -------
-        appended : ExtensionArray
-        """
-
-        to_concat = [self]
-        cls = self.__class__
-
-        if isinstance(other, (list, tuple)):
-            to_concat = to_concat + list(other)
-        else:
-            to_concat.append(other)
-
-        for obj in to_concat:
-            if not isinstance(obj, cls):
-                raise TypeError('all inputs must be of type {}'.format(
-                    cls.__name__))
-
-        return cls._concat_same_type(to_concat)
-
     # ------------------------------------------------------------------------
     # Block-related methods
     # ------------------------------------------------------------------------

pandas/tests/extension/base/reshaping.py

@@ -26,14 +26,6 @@ def test_concat(self, data, in_frame):
         assert dtype == data.dtype
         assert isinstance(result._data.blocks[0], ExtensionBlock)
 
-    def test_append(self, data):
-
-        wrapped = pd.Series(data)
-        result = wrapped.append(wrapped)
-        expected = pd.concat([wrapped, wrapped])
-
-        self.assert_series_equal(result, expected)
-
     @pytest.mark.parametrize('in_frame', [True, False])
     def test_concat_all_na_block(self, data_missing, in_frame):
         valid_block = pd.Series(data_missing.take([1, 1]), index=[0, 1])