Added view to list supported file formats and reported by the converter backend

apps/converter/exceptions.py

@@ -1,31 +1,37 @@
 class ConvertError(Exception):
-    '''Base exception for all coverter app exceptions
-    '''
+    """
+    Base exception for all coverter app exceptions
+    """
     pass
 
 
 class UnknownFormat(ConvertError):
-    '''Raised when the converter backend can't understand or there
-    isn't an appropiate driver available'''
+    """
+    Raised when the converter backend can't understand or there
+    isn't an appropiate driver available
+    """
     pass
 
 
 class UnpaperError(ConvertError):
-    '''Raised by upaper
-    '''
+    """
+    Raised by unpaper
+    """
     pass
 
 
 class IdentifyError(ConvertError):
-    '''Raised by identify
-    '''
+    """
+    Raised by identify
+    """
     pass
 
 
 class UnkownConvertError(ConvertError):
-    '''Raised when an error is found but there is no disernible way to
+    """
+    Raised when an error is found but there is no disernible way to
     identify the kind of error
-    '''
+    """
     pass