CLN: remove panel compat shim (pandas-dev#37983)

Author: fangchenli

ci/deps/travis-37-locale.yaml

@@ -34,7 +34,7 @@ dependencies:
   - pyarrow>=0.17
   - pytables>=3.5.1
   - scipy
-  - xarray=0.12.0
+  - xarray=0.12.3
   - xlrd
   - xlsxwriter
   - xlwt

doc/source/getting_started/install.rst

@@ -284,7 +284,7 @@ pyxlsb                    1.0.6              Reading for xlsb files
 qtpy                                         Clipboard I/O
 s3fs                      0.4.0              Amazon S3 access
 tabulate                  0.8.3              Printing in Markdown-friendly format (see `tabulate`_)
-xarray                    0.12.0             pandas-like API for N-dimensional data
+xarray                    0.12.3             pandas-like API for N-dimensional data
 xclip                                        Clipboard I/O on linux
 xlrd                      1.2.0              Excel reading
 xlwt                      1.3.0              Excel writing

doc/source/reference/index.rst

@@ -30,7 +30,6 @@ public functions related to data types in pandas.
    series
    frame
    arrays
-   panel
    indexing
    offset_frequency
    window

doc/source/reference/panel.rst

@@ -664,6 +664,7 @@ I/O
 - Parse missing values using :func:`read_json` with ``dtype=False`` to ``NaN`` instead of ``None`` (:issue:`28501`)
 - :meth:`read_fwf` was inferring compression with ``compression=None`` which was not consistent with the other :meth:``read_*`` functions (:issue:`37909`)
 - :meth:`DataFrame.to_html` was ignoring ``formatters`` argument for ``ExtensionDtype`` columns (:issue:`36525`)
+- Bumped minimum xarray version to 0.12.3 to avoid reference to the removed ``Panel`` class (:issue:`27101`)
 
 Period
 ^^^^^^

doc/source/whatsnew/v1.2.0.rst

@@ -189,25 +189,10 @@
 
 
 # GH 27101
-# TODO: remove Panel compat in 1.0
 def __getattr__(name):
     import warnings
 
-    if name == "Panel":
-
-        warnings.warn(
-            "The Panel class is removed from pandas. Accessing it "
-            "from the top-level namespace will also be removed in the next version",
-            FutureWarning,
-            stacklevel=2,
-        )
-
-        class Panel:
-            pass
-
-        return Panel
-
-    elif name == "datetime":
+    if name == "datetime":
         warnings.warn(
             "The pandas.datetime class is deprecated "
             "and will be removed from pandas in a future version. "

pandas/__init__.py

@@ -25,7 +25,7 @@
     "sqlalchemy": "1.2.8",
     "tables": "3.5.1",
     "tabulate": "0.8.3",
-    "xarray": "0.12.0",
+    "xarray": "0.12.3",
     "xlrd": "1.2.0",
     "xlwt": "1.3.0",
     "xlsxwriter": "1.0.2",

pandas/compat/_optional.py

@@ -41,7 +41,6 @@ def test_dask(df):
     assert ddf.compute() is not None
 
 
-@pytest.mark.filterwarnings("ignore:Panel class is removed")
 def test_xarray(df):
 
     xarray = import_module("xarray")  # noqa

pandas/tests/test_downstream.py

@@ -138,7 +138,6 @@
     "Google",
     "CategoricalDtype",
     "UTC",
-    "Panel",
     "False",
     "Styler",
     "os",