MAINT: deprecate append_to_syspath

IPython/utils/tests/test_deprecated.py

@@ -0,0 +1,7 b''
+from IPython.utils.syspathcontext import appended_to_syspath
+import pytest
+
+
+def test_append_deprecated():
+    with pytest.warns(DeprecationWarning):
+        appended_to_syspath(".")

IPython/utils/syspathcontext.py

@@ -15,12 +15,21 b' Authors:'
 #-----------------------------------------------------------------------------
 
 import sys
+import warnings
 
 
 class appended_to_syspath(object):
-    """A context for appending a directory to sys.path for a second."""
+    """
+    Deprecated since IPython 8.1, no replacements.
+
+    A context for appending a directory to sys.path for a second."""
 
     def __init__(self, dir):
+        warnings.warn(
+            "`appended_to_syspath` is deprecated since IPython 8.1, and has no replacements",
+            DeprecationWarning,
+            stacklevel=2,
+        )
         self.dir = dir
 
     def __enter__(self):

IPython/utils/version.py

@@ -14,7 +14,10 b' It is a bit ridiculous that we need these.'
 
 from warnings import warn
 
-warn("The `IPython.utils.version` module has been deprecated since IPython 8.0.")
+warn(
+    "The `IPython.utils.version` module has been deprecated since IPython 8.0.",
+    DeprecationWarning,
+)
 
 
 def check_version(v, check):