From d52848ca435352a9a5896e4ee7ebbc87efb37fc5 Mon Sep 17 00:00:00 2001
From: nullptr <3621629+0x0L@users.noreply.github.com>
Date: Mon, 27 May 2019 16:03:00 +0200
Subject: [PATCH] copyright & sphinx

---
 xarray/core/accessor_dt.py        |  6 ++---
 xarray/core/accessor_str.py       | 43 +++++++++++++++++++++++++++++--
 xarray/tests/test_accessor_str.py | 39 ++++++++++++++++++++++++++++
 3 files changed, 83 insertions(+), 5 deletions(-)

diff --git a/xarray/core/accessor_dt.py b/xarray/core/accessor_dt.py
index 640060fafe5..af1f3a79a0c 100644
--- a/xarray/core/accessor_dt.py
+++ b/xarray/core/accessor_dt.py
@@ -133,13 +133,13 @@ class DatetimeAccessor:
 
      """
 
-    def __init__(self, xarray_obj):
-        if not _contains_datetime_like_objects(xarray_obj):
+    def __init__(self, obj):
+        if not _contains_datetime_like_objects(obj):
             raise TypeError("'dt' accessor only available for "
                             "DataArray with datetime64 timedelta64 dtype or "
                             "for arrays containing cftime datetime "
                             "objects.")
-        self._obj = xarray_obj
+        self._obj = obj
 
     def _tslib_field_accessor(name, docstring=None, dtype=None):
         def f(self, dtype=dtype):
diff --git a/xarray/core/accessor_str.py b/xarray/core/accessor_str.py
index c22f0b1f8f0..564593a032e 100644
--- a/xarray/core/accessor_str.py
+++ b/xarray/core/accessor_str.py
@@ -1,3 +1,42 @@
+# The StringAccessor class defined below is an adaptation of the
+# pandas string methods source code (see pd.core.strings)
+
+# For reference, here is a copy of the pandas copyright notice:
+
+# (c) 2011-2012, Lambda Foundry, Inc. and PyData Development Team
+# All rights reserved.
+
+# Copyright (c) 2008-2011 AQR Capital Management, LLC
+# All rights reserved.
+
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+
+#     * Redistributions of source code must retain the above copyright
+#        notice, this list of conditions and the following disclaimer.
+
+#     * Redistributions in binary form must reproduce the above
+#        copyright notice, this list of conditions and the following
+#        disclaimer in the documentation and/or other materials provided
+#        with the distribution.
+
+#     * Neither the name of the copyright holder nor the names of any
+#        contributors may be used to endorse or promote products derived
+#        from this software without specific prior written permission.
+
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
 import codecs
 import re
 import textwrap
@@ -33,8 +72,8 @@ class StringAccessor:
 
     """
 
-    def __init__(self, xarray_obj):
-        self._obj = xarray_obj
+    def __init__(self, obj):
+        self._obj = obj
 
     def _apply(self, f, dtype=None):
         # TODO handling of na values ?
diff --git a/xarray/tests/test_accessor_str.py b/xarray/tests/test_accessor_str.py
index c0bf82edb76..26d5e385df3 100644
--- a/xarray/tests/test_accessor_str.py
+++ b/xarray/tests/test_accessor_str.py
@@ -1,3 +1,42 @@
+# Tests for the `str` accessor are derived from the original
+# pandas string accessor tests.
+
+# For reference, here is a copy of the pandas copyright notice:
+
+# (c) 2011-2012, Lambda Foundry, Inc. and PyData Development Team
+# All rights reserved.
+
+# Copyright (c) 2008-2011 AQR Capital Management, LLC
+# All rights reserved.
+
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+
+#     * Redistributions of source code must retain the above copyright
+#        notice, this list of conditions and the following disclaimer.
+
+#     * Redistributions in binary form must reproduce the above
+#        copyright notice, this list of conditions and the following
+#        disclaimer in the documentation and/or other materials provided
+#        with the distribution.
+
+#     * Neither the name of the copyright holder nor the names of any
+#        contributors may be used to endorse or promote products derived
+#        from this software without specific prior written permission.
+
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
 import re
 
 import pytest