MAINT: Proposal to expire three deprecated functions in numpy.lib.npyio

doc/release/upcoming_changes/19615.expired.rst

@@ -0,0 +1,8 @@
+Expired deprecations for ``loads``, ``ndfromtxt``, and ``mafromtxt`` in npyio
+-----------------------------------------------------------------------------
+
+``numpy.loads`` was deprecated in v1.15, with the recommendation that users
+use `pickle.loads` instead.
+``ndfromtxt`` and ``mafromtxt`` were both deprecated in v1.17 - users should
+use `numpy.genfromtxt` instead with the appropriate value for the
+``usemask`` parameter.

numpy/__init__.pyi

@@ -516,7 +516,6 @@ from numpy.lib.npyio import (
     recfromtxt as recfromtxt,
     recfromcsv as recfromcsv,
     load as load,
-    loads as loads,
     save as save,
     savez as savez,
     savez_compressed as savez_compressed,

numpy/core/_add_newdocs.py

@@ -3252,7 +3252,7 @@
     a.dumps()
 
     Returns the pickle of the array as a string.
-    pickle.loads or numpy.loads will convert the string back to an array.
+    pickle.loads will convert the string back to an array.
 
     Parameters
     ----------

numpy/lib/__init__.pyi

@@ -130,7 +130,6 @@ from numpy.lib.npyio import (
     recfromtxt as recfromtxt,
     recfromcsv as recfromcsv,
     load as load,
-    loads as loads,
     save as save,
     savez as savez,
     savez_compressed as savez_compressed,

numpy/lib/npyio.py

@@ -26,18 +26,9 @@
     )
 
 
-@set_module('numpy')
-def loads(*args, **kwargs):
-    # NumPy 1.15.0, 2017-12-10
-    warnings.warn(
-        "np.loads is deprecated, use pickle.loads instead",
-        DeprecationWarning, stacklevel=2)
-    return pickle.loads(*args, **kwargs)
-
-
 __all__ = [
-    'savetxt', 'loadtxt', 'genfromtxt', 'ndfromtxt', 'mafromtxt',
-    'recfromtxt', 'recfromcsv', 'load', 'loads', 'save', 'savez',
+    'savetxt', 'loadtxt', 'genfromtxt',
+    'recfromtxt', 'recfromcsv', 'load', 'save', 'savez',
     'savez_compressed', 'packbits', 'unpackbits', 'fromregex', 'DataSource'
     ]
 
@@ -2310,62 +2301,6 @@ def encode_unicode_cols(row_tup):
 )(genfromtxt)
 
 
-def ndfromtxt(fname, **kwargs):
-    """
-    Load ASCII data stored in a file and return it as a single array.
-
-    .. deprecated:: 1.17
-        ndfromtxt` is a deprecated alias of `genfromtxt` which
-        overwrites the ``usemask`` argument with `False` even when
-        explicitly called as ``ndfromtxt(..., usemask=True)``.
-        Use `genfromtxt` instead.
-
-    Parameters
-    ----------
-    fname, kwargs : For a description of input parameters, see `genfromtxt`.
-
-    See Also
-    --------
-    numpy.genfromtxt : generic function.
-
-    """
-    kwargs['usemask'] = False
-    # Numpy 1.17
-    warnings.warn(
-        "np.ndfromtxt is a deprecated alias of np.genfromtxt, "
-        "prefer the latter.",
-        DeprecationWarning, stacklevel=2)
-    return genfromtxt(fname, **kwargs)
-
-
-def mafromtxt(fname, **kwargs):
-    """
-    Load ASCII data stored in a text file and return a masked array.
-
-    .. deprecated:: 1.17
-        np.mafromtxt is a deprecated alias of `genfromtxt` which
-        overwrites the ``usemask`` argument with `True` even when
-        explicitly called as ``mafromtxt(..., usemask=False)``.
-        Use `genfromtxt` instead.
-
-    Parameters
-    ----------
-    fname, kwargs : For a description of input parameters, see `genfromtxt`.
-
-    See Also
-    --------
-    numpy.genfromtxt : generic function to load ASCII data.
-
-    """
-    kwargs['usemask'] = True
-    # Numpy 1.17
-    warnings.warn(
-        "np.mafromtxt is a deprecated alias of np.genfromtxt, "
-        "prefer the latter.",
-        DeprecationWarning, stacklevel=2)
-    return genfromtxt(fname, **kwargs)
-
-
 def recfromtxt(fname, **kwargs):
     """
     Load ASCII data from a file and return it in a record array.

numpy/lib/npyio.pyi

@@ -11,8 +11,6 @@ from numpy.core.multiarray import (
 
 __all__: List[str]
 
-def loads(*args, **kwargs): ...
-
 class BagObj:
     def __init__(self, obj): ...
     def __getattribute__(self, key): ...
@@ -98,7 +96,3 @@ def genfromtxt(
 ): ...
 def recfromtxt(fname, **kwargs): ...
 def recfromcsv(fname, **kwargs): ...
-
-# NOTE: Deprecated
-# def ndfromtxt(fname, **kwargs): ...
-# def mafromtxt(fname, **kwargs): ...

numpy/lib/tests/test_io.py

@@ -2503,28 +2503,6 @@ def test_genfromtxt(self):
             data = np.genfromtxt(path)
             assert_array_equal(a, data)
 
-    def test_ndfromtxt(self):
-        # Test outputting a standard ndarray
-        with temppath(suffix='.txt') as path:
-            path = Path(path)
-            with path.open('w') as f:
-                f.write(u'1 2\n3 4')
-
-            control = np.array([[1, 2], [3, 4]], dtype=int)
-            test = np.genfromtxt(path, dtype=int)
-            assert_array_equal(test, control)
-
-    def test_mafromtxt(self):
-        # From `test_fancy_dtype_alt` above
-        with temppath(suffix='.txt') as path:
-            path = Path(path)
-            with path.open('w') as f:
-                f.write(u'1,2,3.0\n4,5,6.0\n')
-
-            test = np.genfromtxt(path, delimiter=',', usemask=True)
-            control = ma.array([(1.0, 2.0, 3.0), (4.0, 5.0, 6.0)])
-            assert_equal(test, control)
-
     def test_recfromtxt(self):
         with temppath(suffix='.txt') as path:
             path = Path(path)

numpy/tests/test_public_api.py

@@ -45,8 +45,6 @@ def test_numpy_namespace():
         'fastCopyAndTranspose': 'numpy.core._multiarray_umath._fastCopyAndTranspose',
         'get_array_wrap': 'numpy.lib.shape_base.get_array_wrap',
         'get_include': 'numpy.lib.utils.get_include',
-        'mafromtxt': 'numpy.lib.npyio.mafromtxt',
-        'ndfromtxt': 'numpy.lib.npyio.ndfromtxt',
         'recfromcsv': 'numpy.lib.npyio.recfromcsv',
         'recfromtxt': 'numpy.lib.npyio.recfromtxt',
         'safe_eval': 'numpy.lib.utils.safe_eval',