gnu: Add python-docker-5.

This is a followup to commit 3eb1ceac58 along
with an upcoming commit to use this in docker-compose to fully fix it.  This
package is added just for the old version 1 of docker-compose and should be
removed once Docker is updated (which includes "docker compose" v2 built-in).

* gnu/packages/docker.scm (python-docker-5): New variable.

Change-Id: I9e640ca3a87fb6e055524cd5acc79588ac36fe36

gnu/packages/docker.scm

@@ -11,6 +11,7 @@
 ;;; Copyright © 2024 Nicolas Graves <ngraves@ngraves.fr>
 ;;; Copyright © 2025 Artyom V. Poptsov <poptsov.artyom@gmail.com>
 ;;; Copyright © 2025 Vinicius Monego <monego@posteo.net>
+;;; Copyright © 2025 John Kehayias <john.kehayias@protonmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -103,6 +104,33 @@
 management tool.")
     (license license:asl2.0)))
 
+;; Needed for old v1 of docker-compose; remove once Docker is updated to a
+;; more recent version which has the command "docker compose" built-in.
+(define-public python-docker-5
+  (package
+    (inherit python-docker)
+    (name "python-docker")
+    (version "5.0.3")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/docker/docker-py")
+             (commit version)))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "0m5ifgxdhcf7yci0ncgnxjas879sksrf3im0fahs573g268farz9"))))
+    (build-system python-build-system)
+    ;; Integration tests need a running Docker daemon.
+    (arguments (list #:tests? #f))
+    (native-inputs '())
+    (inputs (modify-inputs (package-inputs python-docker)
+              (prepend python-six)
+              (delete "python-urllib3")))
+    (propagated-inputs
+     (modify-inputs (package-propagated-inputs python-docker)
+       (prepend python-docker-pycreds python-urllib3-1.26)))))
+
 (define-public python-dockerpty
   (package
     (name "python-dockerpty")