Remove duplicate exceptions

src/mceditlib/exceptions.py

@@ -19,13 +19,13 @@ class LevelFormatError(Exception):
     """ General error for level data not being formatted as expected
     """
 
-class RegionMalformed(LevelFormatError):
+class RegionFormatError(LevelFormatError):
     """ Region index entry points outside of the file or to an incomplete sector. Region compress type
     is unknown.
     """
     pass
 
-class ChunkMalformed(LevelFormatError):
+class ChunkFormatError(LevelFormatError):
     """ Chunk did not have an expected NBT tag.
     """
     pass

src/mceditlib/pc/regionfile.py

@@ -14,19 +14,13 @@ import time
 import numpy
 
 from mceditlib import nbt
-from mceditlib.exceptions import ChunkNotPresent
+from mceditlib.exceptions import ChunkNotPresent, RegionFormatError
 
 log = logging.getLogger(__name__)
 
 __author__ = 'Rio'
 
 
-class RegionFormatError(RuntimeError):
-    """
-    Raised on an error in the region file format.
-    """
-
-
 def deflate(data):
     return zlib.compress(data, 2)