gnu: python-dnspython-1.16: Add missing inputs.

* gnu/packages/python-xyz.scm (python-dnspython-1.16)[arguments]: Add phase
'compatibility.
[native-inputs]: Add python-pytest, python-setuptools, and python-wheel.

Change-Id: I2d26d6607e4e376f204b790f14f38e067ebdc456

gnu/packages/python-xyz.scm

@@ -23088,7 +23088,26 @@ It supports TSIG authenticated messages and EDNS0.")
               (sha256
                (base32
                 "1yaw7irazy42n0kdhlk7wyg8ki34rxcnc5xbc1wfwy245b0wbxab"))))
-    (native-inputs '())))
+    (arguments
+     (list
+      #:phases
+      #~(modify-phases %standard-phases
+          (add-after 'unpack 'compatibility
+            (lambda _
+              (substitute* "dns/namedict.py"
+                (("collections.MutableMapping")
+                 "collections.abc.MutableMapping"))))
+          (add-after 'unpack 'patch-getprotobyname-calls
+            ;; These calls are problematic in the build environment as there is
+            ;; no /etc/protocols.  This breaks the sanity-check phase of any
+            ;; package depnding on this one.
+            (lambda _
+              (substitute* "dns/rdtypes/IN/WKS.py"
+                (("socket.getprotobyname\\('tcp'\\)")
+                 "6")
+                (("socket.getprotobyname\\('udp'\\)")
+                 "17")))))))
+    (native-inputs (list python-pytest python-setuptools python-wheel))))
 
 (define-public python-py3dns
   (package