Issue #18901: The sunau getparams method now returns a namedtuple rather than

a plain tuple.  Patch by Claudiu Popa.

Lib/sunau.py

@@ -51,7 +51,7 @@ This returns an instance of a class with the following public methods:
         getcomptype()   -- returns compression type ('NONE' or 'ULAW')
         getcompname()   -- returns human-readable version of
                            compression type ('not compressed' matches 'NONE')
-        getparams()     -- returns a tuple consisting of all of the
+        getparams()     -- returns a namedtuple consisting of all of the
                            above in the above order
         getmarkers()    -- returns None (for compatibility with the
                            aifc module)
@@ -103,6 +103,11 @@ The close() method is called automatically when the class instance
 is destroyed.
 """
 
+from collections import namedtuple
+
+_sunau_params = namedtuple('_sunau_params',
+                           'nchannels sampwidth framerate nframes comptype compname')
+
 # from <multimedia/audio_filehdr.h>
 AUDIO_FILE_MAGIC = 0x2e736e64
 AUDIO_FILE_ENCODING_MULAW_8 = 1
@@ -242,9 +247,9 @@ class Au_read:
             return 'not compressed'
 
     def getparams(self):
-        return self.getnchannels(), self.getsampwidth(), \
-                  self.getframerate(), self.getnframes(), \
-                  self.getcomptype(), self.getcompname()
+        return _sunau_params(self.getnchannels(), self.getsampwidth(),
+                  self.getframerate(), self.getnframes(),
+                  self.getcomptype(), self.getcompname())
 
     def getmarkers(self):
         return None
@@ -381,9 +386,9 @@ class Au_write:
         self.setcomptype(comptype, compname)
 
     def getparams(self):
-        return self.getnchannels(), self.getsampwidth(), \
-                  self.getframerate(), self.getnframes(), \
-                  self.getcomptype(), self.getcompname()
+        return _sunau_getparams(self.getnchannels(), self.getsampwidth(),
+                  self.getframerate(), self.getnframes(),
+                  self.getcomptype(), self.getcompname())
 
     def tell(self):
         return self._nframeswritten