Hi

Thank you for the patch.

I've applied some adjustments to indentation:
--8<---------------cut here---------------start------------->8---
modified   gnu/packages/python-xyz.scm
@@ -38375,21 +38375,25 @@ (define-public python-pypubsub
     (build-system pyproject-build-system)
     (arguments
      (list
-      #:phases #~(modify-phases %standard-phases
-                   (replace 'check
-                     (lambda* (#:key tests? #:allow-other-keys)
-                       (when tests?
-                         (with-directory-excursion "tests/suite"
-                           (invoke "py.test"))))))))
-    (native-inputs (list python-pytest python-setuptools python-wheel))
+      #:phases
+      #~(modify-phases %standard-phases
+          (replace 'check
+            (lambda* (#:key tests? #:allow-other-keys)
+              (when tests?
+                (with-directory-excursion "tests/suite"
+                  (invoke "py.test"))))))))
+    (native-inputs
+     (list python-pytest
+           python-setuptools
+           python-wheel))
     (home-page "https://github.com/schollii/pypubsub")
     (synopsis "Python publish-subcribe library")
     (description
-     "This library provides a publish-subscribe API to facilitate
-event-based or message-based architecture in a single-process
-application.  It is centered on the notion of a topic - senders
-publish messages of a given topic, and listeners subscribe to messages
-of a given topic, all inside the same process.")
+     "This library provides a publish-subscribe API to facilitate event-based
+or message-based architecture in a single-process application.  It is centered
+on the notion of a topic - senders publish messages of a given topic, and
+listeners subscribe to messages of a given topic, all inside the same
+process.")
     (license license:bsd-2)))
 
 (define-public python-queuelib
--8<---------------cut here---------------end--------------->8---

Pushed to master as

ac9fc0db767 * master gnu: Add python-pypubsub.

Closing as competed.

--
Oleg