Python bindings: examples

* lang/python/examples/howto/export-secret-keys.py and groups.py:
  Updated the backwards compatibility adjustments to account for
  unicode differences between python 2 and 3.

lang/python/examples/howto/export-secret-keys.py

@@ -90,6 +90,9 @@ else:
             process = subprocess.Popen(gpgconfcmd.split(),
                                        stdout=subprocess.PIPE)
             procom = process.communicate()
+            if sys.version_info[0] == 2:
+                hd = procom[0].strip()
+            else:
                 hd = procom[0].decode().strip()
     gpgfile = "{0}/{1}.gpg".format(hd, keyfile)
     ascfile = "{0}/{1}.asc".format(hd, keyfile)

lang/python/examples/howto/groups.py

@@ -42,6 +42,9 @@ try:
 except:
     process = subprocess.Popen(gpgconfcmd.split(), stdout=subprocess.PIPE)
     procom = process.communicate()
+    if sys.version_info[0] == 2:
+        lines = procom[0].splitlines()
+    else:
         lines = procom[0].decode().splitlines()
 
 for i in range(len(lines)):