diff --git a/gnu/packages/admin.scm b/gnu/packages/admin.scm
index 1ad3f93dfc..54e7403460 100644
--- a/gnu/packages/admin.scm
+++ b/gnu/packages/admin.scm
@@ -156,6 +156,7 @@
   #:use-module (gnu packages polkit)
   #:use-module (gnu packages popt)
   #:use-module (gnu packages python)
+  #:use-module (gnu packages python-build)
   #:use-module (gnu packages python-crypto)
   #:use-module (gnu packages python-web)
   #:use-module (gnu packages python-xyz)
diff --git a/gnu/packages/audio.scm b/gnu/packages/audio.scm
index 220e0b8e86..053ee13413 100644
--- a/gnu/packages/audio.scm
+++ b/gnu/packages/audio.scm
@@ -113,6 +113,7 @@
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages pulseaudio)  ;libsndfile, libsamplerate
   #:use-module (gnu packages python)
+  #:use-module (gnu packages python-build)
   #:use-module (gnu packages python-science)
   #:use-module (gnu packages python-xyz)
   #:use-module (gnu packages qt)
diff --git a/gnu/packages/embedded.scm b/gnu/packages/embedded.scm
index 8d854c7e6d..f2d0def2f2 100644
--- a/gnu/packages/embedded.scm
+++ b/gnu/packages/embedded.scm
@@ -62,6 +62,7 @@
   #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages python)
+  #:use-module (gnu packages python-build)
   #:use-module (gnu packages python-crypto)
   #:use-module (gnu packages python-web)
   #:use-module (gnu packages python-xyz)
diff --git a/gnu/packages/engineering.scm b/gnu/packages/engineering.scm
index f7afa1c067..3b4bd8618b 100644
--- a/gnu/packages/engineering.scm
+++ b/gnu/packages/engineering.scm
@@ -135,6 +135,7 @@
   #:use-module (gnu packages protobuf)
   #:use-module (gnu packages pulseaudio)
   #:use-module (gnu packages python)
+  #:use-module (gnu packages python-build)
   #:use-module (gnu packages python-check)
   #:use-module (gnu packages python-crypto)
   #:use-module (gnu packages python-science)
diff --git a/gnu/packages/orange.scm b/gnu/packages/orange.scm
index 2a66fe429e..8b22124c35 100644
--- a/gnu/packages/orange.scm
+++ b/gnu/packages/orange.scm
@@ -25,6 +25,7 @@
   #:use-module (gnu packages freedesktop)
   #:use-module (gnu packages graph)
   #:use-module (gnu packages machine-learning)
+  #:use-module (gnu packages python-build)
   #:use-module (gnu packages python-crypto)
   #:use-module (gnu packages python-science)
   #:use-module (gnu packages python-web)
diff --git a/gnu/packages/potassco.scm b/gnu/packages/potassco.scm
index 0e6973d980..386ff62f0c 100644
--- a/gnu/packages/potassco.scm
+++ b/gnu/packages/potassco.scm
@@ -35,6 +35,7 @@
   #:use-module (gnu packages libffi)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages python)
+  #:use-module (gnu packages python-build)
   #:use-module (gnu packages python-xyz))
 
 (define-public libpotassco
diff --git a/gnu/packages/python-build.scm b/gnu/packages/python-build.scm
index de81894729..7f1ddf79da 100644
--- a/gnu/packages/python-build.scm
+++ b/gnu/packages/python-build.scm
@@ -5,9 +5,12 @@
 ;;; Copyright © 2020, 2023 Marius Bakke <marius@gnu.org>
 ;;; Copyright © 2020 Tanguy Le Carrour <tanguy@bioneland.org>
 ;;; Copyright © 2018, 2021, 2022, 2023 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2019 Vagrant Cascadian <vagrant@debian.org>
 ;;; Copyright © 2021 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2020, 2021, 2022 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2022 Garek Dyszel <garekdyszel@disroot.org>
+;;; Copyright © 2022 Greg Hogan <code@greghogan.com>
+
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -210,6 +213,45 @@ Python file, so it can be easily copied into your project.")
 PyPI (pypi.org).")
     (license license:asl2.0)))
 
+(define-public python-typing-extensions
+  (package
+    (name "python-typing-extensions")
+    (version "4.3.0")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "typing_extensions" version))
+              (sha256
+               (base32
+                "19n4l57qazwrbvxjrbxw2vvfyd0zbk8ivnwm4zmwfzzl69x6glp6"))))
+    (build-system pyproject-build-system)
+    ;; Disable the test suite to keep the dependencies to a minimum.  Also,
+    ;; the test suite requires Python's test module, not available in Guix.
+    (arguments (list #:tests? #f))
+    (native-inputs (list python-flit-core))
+    (home-page "https://github.com/python/typing/typing_extensions")
+    (synopsis "Experimental type hints for Python")
+    (description
+     "The typing_extensions module contains additional @code{typing} hints not
+yet present in the of the @code{typing} standard library.
+Included are implementations of:
+@enumerate
+@item ClassVar
+@item ContextManager
+@item Counter
+@item DefaultDict
+@item Deque
+@item NewType
+@item NoReturn
+@item overload
+@item Protocol
+@item runtime
+@item Text
+@item Type
+@item TYPE_CHECKING
+@item AsyncGenerator
+@end enumerate\n")
+    (license license:psfl)))
+
 
 ;;;
 ;;; Python builder packages.
diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index ad90e2f3e5..a595ec3a21 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -22645,44 +22645,6 @@ based on the CPython 2.7 and 3.7 parsers.")
 with PEP 484 argument (and return) type annotations.")
     (license license:expat)))
 
-(define-public python-typing-extensions
-  (package
-    (name "python-typing-extensions")
-    (version "4.3.0")
-    (source (origin
-              (method url-fetch)
-              (uri (pypi-uri "typing_extensions" version))
-              (sha256
-               (base32
-                "19n4l57qazwrbvxjrbxw2vvfyd0zbk8ivnwm4zmwfzzl69x6glp6"))))
-    (build-system pyproject-build-system)
-    ;; The test suite requires Python's test module, not available in Guix.
-    (arguments (list #:tests? #f))
-    (native-inputs (list python-flit-core))
-    (home-page "https://github.com/python/typing/typing_extensions")
-    (synopsis "Experimental type hints for Python")
-    (description
-     "The typing_extensions module contains additional @code{typing} hints not
-yet present in the of the @code{typing} standard library.
-Included are implementations of:
-@enumerate
-@item ClassVar
-@item ContextManager
-@item Counter
-@item DefaultDict
-@item Deque
-@item NewType
-@item NoReturn
-@item overload
-@item Protocol
-@item runtime
-@item Text
-@item Type
-@item TYPE_CHECKING
-@item AsyncGenerator
-@end enumerate\n")
-    (license license:psfl)))
-
 (define-public bpython
   (package
     (name "bpython")
diff --git a/gnu/packages/rpc.scm b/gnu/packages/rpc.scm
index 59a4c41343..f05f835be1 100644
--- a/gnu/packages/rpc.scm
+++ b/gnu/packages/rpc.scm
@@ -42,6 +42,7 @@
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages protobuf)
   #:use-module (gnu packages python)
+  #:use-module (gnu packages python-build)
   #:use-module (gnu packages python-xyz)
   #:use-module (gnu packages regex)
   #:use-module (gnu packages tls)
diff --git a/gnu/packages/ssh.scm b/gnu/packages/ssh.scm
index 4b107834aa..af5072fdc2 100644
--- a/gnu/packages/ssh.scm
+++ b/gnu/packages/ssh.scm
@@ -63,6 +63,7 @@
   #:use-module (gnu packages popt)
   #:use-module (gnu packages protobuf)
   #:use-module (gnu packages python)
+  #:use-module (gnu packages python-build)
   #:use-module (gnu packages python-crypto)
   #:use-module (gnu packages python-web)
   #:use-module (gnu packages python-xyz)