From d0041c52082f022ae5bd7deaea91a3b9e4764838 2021-11-25 00:52:23
From: Matthias Bussonnier <bussonniermatthias@gmail.com>
Date: 2021-11-25 00:52:23
Subject: [PATCH] Backport PR #13249: Misc docs

---

diff --git a/IPython/core/completer.py b/IPython/core/completer.py
index c493fa3..e4d3995 100644
--- a/IPython/core/completer.py
+++ b/IPython/core/completer.py
@@ -166,7 +166,13 @@ else:
 # may have trouble processing.
 MATCHES_LIMIT = 500
 
-_deprecation_readline_sentinel = object()
+
+class Sentinel:
+    def __repr__(self):
+        return "<deprecated sentinel>"
+
+
+_deprecation_readline_sentinel = Sentinel()
 
 
 class ProvisionalCompleterWarning(FutureWarning):
diff --git a/IPython/core/interactiveshell.py b/IPython/core/interactiveshell.py
index 6bb2aa6..835dc8d 100644
--- a/IPython/core/interactiveshell.py
+++ b/IPython/core/interactiveshell.py
@@ -2981,7 +2981,7 @@ class InteractiveShell(SingletonConfigurable):
         result: bool
             Whether the code needs to be run with a coroutine runner or not
 
-        .. versionadded: 7.0
+        .. versionadded:: 7.0
         """
         if not self.autoawait:
             return False
@@ -3046,7 +3046,7 @@ class InteractiveShell(SingletonConfigurable):
         -------
         result : :class:`ExecutionResult`
 
-        .. versionadded: 7.0
+        .. versionadded:: 7.0
         """
         info = ExecutionInfo(
             raw_cell, store_history, silent, shell_futures)
diff --git a/IPython/core/pylabtools.py b/IPython/core/pylabtools.py
index eda368c..c9c8e14 100644
--- a/IPython/core/pylabtools.py
+++ b/IPython/core/pylabtools.py
@@ -119,7 +119,7 @@ def print_figure(fig, fmt="png", bbox_inches="tight", base64=False, **kwargs):
     If `base64` is True, return base64-encoded str instead of raw bytes
     for binary-encoded image formats
 
-    .. versionadded: 7.29
+    .. versionadded:: 7.29
         base64 argument
     """
     # When there's an empty figure, we shouldn't return anything, otherwise we
@@ -162,7 +162,7 @@ def retina_figure(fig, base64=False, **kwargs):
     If `base64` is True, return base64-encoded str instead of raw bytes
     for binary-encoded image formats
 
-    .. versionadded: 7.29
+    .. versionadded:: 7.29
         base64 argument
     """
     pngdata = print_figure(fig, fmt="retina", base64=False, **kwargs)
@@ -399,7 +399,7 @@ def import_pylab(user_ns, import_all=True):
 
 def configure_inline_support(shell, backend):
     """
-    .. deprecated: 7.23
+    .. deprecated:: 7.23
 
         use `matplotlib_inline.backend_inline.configure_inline_support()`
 
diff --git a/IPython/utils/text.py b/IPython/utils/text.py
index 72a87c4..256fdab 100644
--- a/IPython/utils/text.py
+++ b/IPython/utils/text.py
@@ -597,6 +597,9 @@ class DollarFormatter(FullEvalFormatter):
             # Re-yield the {foo} style pattern
             yield (txt + literal_txt[continue_from:], field_name, format_spec, conversion)
 
+    def __repr__(self):
+        return "<DollarFormatter>"
+
 #-----------------------------------------------------------------------------
 # Utils to columnize a list of string
 #-----------------------------------------------------------------------------