1 files changed, 11 insertions, 4 deletions
diff --git a/pdfrw/errors.py b/pdfrw/errors.py
index 4759656..263cd4d 100644
--- a/pdfrw/errors.py
+++ b/pdfrw/errors.py
@@ -1,5 +1,5 @@
-# A part of pdfrw (pdfrw.googlecode.com)
-# Copyright (C) 2006-2009 Patrick Maupin, Austin, Texas
+# A part of pdfrw (https://github.com/pmaupin/pdfrw)
+# Copyright (C) 2006-2015 Patrick Maupin, Austin, Texas
 # MIT license -- See LICENSE.txt for details
 
 '''
@@ -7,25 +7,32 @@ PDF Exceptions and error handling
 '''
 
 import logging
-from exceptions import Exception
 
 
 logging.basicConfig(
     format='[%(levelname)s] %(filename)s:%(lineno)d %(message)s',
-    level=logging.WARNING)
+           level=logging.WARNING)
 
 log = logging.getLogger('pdfrw')
 
 
 class PdfError(Exception):
     "Abstract base class of exceptions thrown by this module"
+
     def __init__(self, msg):
         self.msg = msg
+
     def __str__(self):
         return self.msg
 
+
 class PdfParseError(PdfError):
     "Error thrown by parser/tokenizer"
 
+
 class PdfOutputError(PdfError):
     "Error thrown by PDF writer"
+
+
+class PdfNotImplementedError(PdfError):
+    "Error thrown on missing features"