more python3 fixes

appy/pod/doc_importers.py

@@ -23,11 +23,7 @@ from appy.pod.odf_parser import OdfEnvironment
 from appy.shared import mimeTypesExts
 from appy.shared.utils import FileWrapper
 from appy.shared.dav import Resource
-# The uuid module is there only if python >= 2.5
-try:
-    import uuid
-except ImportError:
-    uuid = None
+import uuid
 
 # ------------------------------------------------------------------------------
 FILE_NOT_FOUND = "'%s' does not exist or is not a file."

appy/pod/renderer.py

@@ -18,11 +18,8 @@
 
 # ------------------------------------------------------------------------------
 import zipfile, shutil, xml.sax, os, os.path, re, mimetypes, time
-#python3 compat
-try:
-    from UserDict import UserDict
-except ImportError:
-    from collections import UserDict
+from collections import UserDict
+
 import appy.pod
 from appy.pod import PodError
 from appy.shared import mimeTypes, mimeTypesExts

appy/pod/styles_manager.py

@@ -18,12 +18,7 @@
 
 # ------------------------------------------------------------------------------
 import re, os.path
-#python3 compat
-try:
-    from UserDict import UserDict
-except ImportError:
-    from collections import UserDict
-    
+from collections import UserDict
 import appy.pod
 from appy.pod import *
 from appy.pod.odf_parser import OdfEnvironment, OdfParser