Class FileFormatError

              object --+                
                       |                
exceptions.BaseException --+            
                           |            
        exceptions.Exception --+        
                               |        
        exceptions.StandardError --+    
                                   |    
               exceptions.ValueError --+
                                       |
                                      FileFormatError

Error object for data parsing error

>>> raise FileFormatError
Traceback (most recent call last):
    ...
FileFormatError: Unsupported data format.
>>> raise FileFormatError("test site")
Traceback (most recent call last):
    ...
FileFormatError: Incorrect data format, if you're using a file downloaded
from test site please report this to James Rowe <jnrowe@ukfsn.org>