Some Python3 related fixes.

examples/hdf5.py

@@ -25,7 +25,7 @@ if len(sys.argv) > 1:
 else:
     fileName = 'test.hdf5'
     if not os.path.isfile(fileName):
-        print "No suitable HDF5 file found. Use createFile() to generate an example file."
+        print("No suitable HDF5 file found. Use createFile() to generate an example file.")
         os._exit(1)
 
 plt = pg.plot()

setup.py

@@ -46,7 +46,7 @@ try:
         lastTag = gitCommit(lastTagName)
         head = gitCommit('HEAD')
         if head != lastTag:
-            branch = re.search(r'\* (.*)', check_output(['git', 'branch'])).group(1)
+            branch = re.search(r'\* (.*)', check_output(['git', 'branch'], universal_newlines=True)).group(1)
             version = version + "-%s-%s" % (branch, head[:10])
         
         # any uncommitted modifications?