From fd54955131e86b31e7b977f148f8071479165cbe Mon Sep 17 00:00:00 2001
From: "Eric V. Smith" <eric@trueblade.com>
Date: Thu, 21 Oct 2021 16:12:15 -0400
Subject: [PATCH 1/2] Fix underscore_numbers in pprint.pprint().

---
 Lib/pprint.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Lib/pprint.py b/Lib/pprint.py
index 60ce57e910ec49..575688d8eb6f4a 100644
--- a/Lib/pprint.py
+++ b/Lib/pprint.py
@@ -50,7 +50,8 @@ def pprint(object, stream=None, indent=1, width=80, depth=None, *,
     """Pretty-print a Python object to a stream [default is sys.stdout]."""
     printer = PrettyPrinter(
         stream=stream, indent=indent, width=width, depth=depth,
-        compact=compact, sort_dicts=sort_dicts, underscore_numbers=False)
+        compact=compact, sort_dicts=sort_dicts,
+        underscore_numbers=underscore_numbers)
     printer.pprint(object)
 
 def pformat(object, indent=1, width=80, depth=None, *,

From 5bdb8517963fbdf654c6396ad26e1ef679f63a0a Mon Sep 17 00:00:00 2001
From: "Eric V. Smith" <eric@trueblade.com>
Date: Thu, 21 Oct 2021 16:18:57 -0400
Subject: [PATCH 2/2] Added blurb.

---
 .../next/Library/2021-10-21-16-18-51.bpo-45557.4MQt4r.rst       | 2 ++
 1 file changed, 2 insertions(+)
 create mode 100644 Misc/NEWS.d/next/Library/2021-10-21-16-18-51.bpo-45557.4MQt4r.rst

diff --git a/Misc/NEWS.d/next/Library/2021-10-21-16-18-51.bpo-45557.4MQt4r.rst b/Misc/NEWS.d/next/Library/2021-10-21-16-18-51.bpo-45557.4MQt4r.rst
new file mode 100644
index 00000000000000..7472b08d1b08e2
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2021-10-21-16-18-51.bpo-45557.4MQt4r.rst
@@ -0,0 +1,2 @@
+pprint.pprint() now handles underscore_numbers correctly. Previously it was
+always setting it to False.