MNT Remove obsolete code (Python >= 3.7) (#21092)

DimitriPapadopoulos · glemaitre · commit a8b7c594149b · 2021-10-25T11:37:00.000+02:00
diff --git a/sklearn/externals/_pep562.py b/sklearn/externals/_pep562.py
diff --git a/sklearn/impute/tests/test_impute.py b/sklearn/impute/tests/test_impute.py
@@ -1,5 +1,3 @@
-from __future__ import division
-
 import pytest
 
 import numpy as np
diff --git a/sklearn/neighbors/_nca.py b/sklearn/neighbors/_nca.py
@@ -7,8 +7,6 @@
 #          John Chiotellis <ioannis.chiotellis@in.tum.de>
 # License: BSD 3 clause
 
-from __future__ import print_function
-
 from warnings import warn
 import numpy as np
 import sys
diff --git a/sklearn/tests/test_docstring_parameters.py b/sklearn/tests/test_docstring_parameters.py
@@ -21,7 +21,6 @@
 from sklearn.utils.estimator_checks import _enforce_estimator_tags_x
 from sklearn.utils.estimator_checks import _construct_instance
 from sklearn.utils.deprecation import _is_deprecated
-from sklearn.externals._pep562 import Pep562
 from sklearn.datasets import make_classification
 from sklearn.linear_model import LogisticRegression
 from sklearn.preprocessing import FunctionTransformer
@@ -162,12 +161,6 @@ def test_tabs():
         # because we don't import
         mod = importlib.import_module(modname)
 
-        # TODO: Remove when minimum python version is 3.7
-        # unwrap to get module because Pep562 backport wraps the original
-        # module
-        if isinstance(mod, Pep562):
-            mod = mod._module
-
         try:
             source = inspect.getsource(mod)
         except IOError:  # user probably should have run "make clean"

Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,3 @@`
`1`		`-from __future__ import division`
`2`		`-`
`3`	`1`	`import pytest`
`4`	`2`
`5`	`3`	`import numpy as np`