CLN: Remove pd.parser, lib, and tslib (#23378)

xref gh-15537.

Need to bumpy xarray version for
Travis 2.7 because 0.8.0 becomes
incompatible with this change.

Author: gfyoung

ci/travis-27.yaml

@@ -35,7 +35,7 @@ dependencies:
   - s3fs
   - scipy
   - sqlalchemy=0.9.6
-  - xarray=0.8.0
+  - xarray=0.9.6
   - xlrd=0.9.2
   - xlsxwriter=0.5.2
   - xlwt=0.7.5

doc/source/whatsnew/v0.24.0.txt

@@ -945,6 +945,7 @@ Removal of prior version deprecations/changes
 - Removal of the previously deprecated ``as_indexer`` keyword completely from ``str.match()`` (:issue:`22356`, :issue:`6581`)
 - Removed the ``pandas.formats.style`` shim for :class:`pandas.io.formats.style.Styler` (:issue:`16059`)
 - :meth:`Categorical.searchsorted` and :meth:`Series.searchsorted` have renamed the ``v`` argument to ``value`` (:issue:`14645`)
+- ``pandas.parser``, ``pandas.lib``, and ``pandas.tslib`` have been removed (:issue:`15537`)
 - :meth:`TimedeltaIndex.searchsorted`, :meth:`DatetimeIndex.searchsorted`, and :meth:`PeriodIndex.searchsorted` have renamed the ``key`` argument to ``value`` (:issue:`14645`)
 - Removal of the previously deprecated module ``pandas.json`` (:issue:`19944`)
 - :meth:`SparseArray.get_values` and :meth:`SparseArray.to_dense` have dropped the ``fill`` parameter (:issue:`14686`)

pandas/__init__.py

@@ -58,24 +58,6 @@
 from pandas.util._tester import test
 import pandas.testing
 
-# extension module deprecations
-from pandas.util._depr_module import _DeprecatedModule
-
-parser = _DeprecatedModule(deprmod='pandas.parser',
-                           removals=['na_values'],
-                           moved={'CParserError': 'pandas.errors.ParserError'})
-lib = _DeprecatedModule(deprmod='pandas.lib', deprmodto=False,
-                        moved={'Timestamp': 'pandas.Timestamp',
-                               'Timedelta': 'pandas.Timedelta',
-                               'NaT': 'pandas.NaT',
-                               'infer_dtype': 'pandas.api.types.infer_dtype'})
-tslib = _DeprecatedModule(deprmod='pandas.tslib',
-                          moved={'Timestamp': 'pandas.Timestamp',
-                                 'Timedelta': 'pandas.Timedelta',
-                                 'NaT': 'pandas.NaT',
-                                 'NaTType': 'type(pandas.NaT)',
-                                 'OutOfBoundsDatetime': 'pandas.errors.OutOfBoundsDatetime'})
-
 # use the closest tagged version if possible
 from ._version import get_versions
 v = get_versions()

pandas/lib.py

@@ -34,7 +34,7 @@ class TestPDApi(Base):
            'util', 'options', 'io']
 
     # these are already deprecated; awaiting removal
-    deprecated_modules = ['parser', 'lib', 'tslib']
+    deprecated_modules = []
 
     # misc
     misc = ['IndexSlice', 'NaT']
@@ -172,27 +172,6 @@ def test_get_store(self):
                 s.close()
 
 
-class TestParser(object):
-
-    @pytest.mark.filterwarnings("ignore")
-    def test_deprecation_access_func(self):
-        pd.parser.na_values
-
-
-class TestLib(object):
-
-    @pytest.mark.filterwarnings("ignore")
-    def test_deprecation_access_func(self):
-        pd.lib.infer_dtype('foo')
-
-
-class TestTSLib(object):
-
-    @pytest.mark.filterwarnings("ignore")
-    def test_deprecation_access_func(self):
-        pd.tslib.Timestamp('20160101')
-
-
 class TestTypes(object):
 
     def test_deprecation_access_func(self):

pandas/parser.py

@@ -1,5 +1,4 @@
 # -*- coding: utf-8 -*-
-import sys
 import pytest
 
 from pandas.api import types
@@ -53,16 +52,3 @@ def test_deprecated_from_api_types(self):
             with tm.assert_produces_warning(FutureWarning,
                                             check_stacklevel=False):
                 getattr(types, t)(1)
-
-
-def test_moved_infer_dtype():
-    # del from sys.modules to ensure we try to freshly load.
-    # if this was imported from another test previously, we would
-    # not see the warning, since the import is otherwise cached.
-    sys.modules.pop("pandas.lib", None)
-
-    with tm.assert_produces_warning(FutureWarning):
-        import pandas.lib
-
-        e = pandas.lib.infer_dtype('foo')
-        assert e is not None

pandas/tests/api/test_api.py

@@ -1,7 +1,6 @@
 # -*- coding: utf-8 -*-
 
 import pytest
-from warnings import catch_warnings, simplefilter
 import pandas  # noqa
 import pandas as pd
 from pandas.errors import AbstractMethodError
@@ -47,13 +46,6 @@ def test_error_rename():
     except CParserError:
         pass
 
-    with catch_warnings(record=True):
-        simplefilter("ignore")
-        try:
-            raise ParserError()
-        except pd.parser.CParserError:
-            pass
-
 
 class Foo(object):
     @classmethod