Remove and ban use of py.builtin

.pre-commit-config.yaml

@@ -51,3 +51,8 @@ repos:
         entry: 'changelog files must be named ####.(feature|bugfix|doc|deprecation|removal|vendor|trivial).rst'
         exclude: changelog/(\d+\.(feature|bugfix|doc|deprecation|removal|vendor|trivial).rst|README.rst|_template.rst)
         files: ^changelog/
+    -   id: py-deprecated
+        name: py library is deprecated
+        language: pygrep
+        entry: '\bpy\.(builtin\.|code\.|std\.)'
+        types: [python]

src/_pytest/_code/source.py

@@ -237,9 +237,7 @@ def getfslineno(obj):
 def findsource(obj):
     try:
         sourcelines, lineno = inspect.findsource(obj)
-    except py.builtin._sysex:
-        raise
-    except:  # noqa
+    except Exception:
         return None, -1
     source = Source()
     source.lines = [line.rstrip() for line in sourcelines]

src/_pytest/assertion/rewrite.py

@@ -678,7 +678,7 @@ class AssertionRewriter(ast.NodeVisitor):
         # Insert some special imports at the top of the module but after any
         # docstrings and __future__ imports.
         aliases = [
-            ast.alias(py.builtin.builtins.__name__, "@py_builtins"),
+            ast.alias(six.moves.builtins.__name__, "@py_builtins"),
             ast.alias("_pytest.assertion.rewrite", "@pytest_ar"),
         ]
         doc = getattr(mod, "docstring", None)

testing/python/collect.py

@@ -963,7 +963,7 @@ class TestTracebackCutting(object):
 
     def test_filter_traceback_generated_code(self):
         """test that filter_traceback() works with the fact that
-        py.code.Code.path attribute might return an str object.
+        _pytest._code.code.Code.path attribute might return an str object.
         In this case, one of the entries on the traceback was produced by
         dynamically generated code.
         See: https://bitbucket.org/pytest-dev/py/issues/71
@@ -984,7 +984,7 @@ class TestTracebackCutting(object):
 
     def test_filter_traceback_path_no_longer_valid(self, testdir):
         """test that filter_traceback() works with the fact that
-        py.code.Code.path attribute might return an str object.
+        _pytest._code.code.Code.path attribute might return an str object.
         In this case, one of the files in the traceback no longer exists.
         This fixes #1133.
         """

testing/test_assertion.py

@@ -7,7 +7,6 @@ import sys
 import textwrap
 
 import attr
-import py
 import six
 
 import _pytest.assertion as plugin
@@ -455,10 +454,13 @@ class TestAssert_reprcompare(object):
         assert len(expl) > 1
 
     def test_Sequence(self):
-        col = py.builtin._tryimport("collections.abc", "collections", "sys")
-        if not hasattr(col, "MutableSequence"):
+        if sys.version_info >= (3, 3):
+            import collections.abc as collections_abc
+        else:
+            import collections as collections_abc
+        if not hasattr(collections_abc, "MutableSequence"):
             pytest.skip("cannot import MutableSequence")
-        MutableSequence = col.MutableSequence
+        MutableSequence = collections_abc.MutableSequence
 
         class TestSequence(MutableSequence):  # works with a Sequence subclass
             def __init__(self, iterable):