gnu: Add python-dirsync.

* gnu/packages/python.scm (python-dirsync, python2-dirsync): New variables.

gnu/packages/python.scm

@@ -14303,3 +14303,27 @@ perform the operations required for synchronizing plain text.")
 
 (define-public python2-diff-match-patch
   (package-with-python2 python-diff-match-patch))
+
+(define-public python-dirsync
+  (package
+    (name "python-dirsync")
+    (version "2.2.2")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (pypi-uri "dirsync" version ".zip"))
+        (sha256
+         (base32
+          "1hcdvmkwd5512zbxpin0k7bx5bkgzy3swjx7d0kj1y45af6r75v2"))))
+    (build-system python-build-system)
+    (native-inputs
+     `(("unzip" ,unzip)))
+    (propagated-inputs
+     `(("six" ,python-six)))
+    (home-page "https://bitbucket.org/tkhyn/dirsync")
+    (synopsis "Advanced directory tree synchronisation tool")
+    (description "Advanced directory tree synchronisation tool.")
+    (license license:expat)))
+
+(define-public python2-dirsync
+  (package-with-python2 python-dirsync))