Unhandled exception when comparing epub books

[kantadharm]

calibre, version 1.37.0
ERROR: Unhandled exception: <b>AttributeError</b>:'Dictionaries' object has no attribute 'active_user_dictionaries'

calibre 1.37 [64bit] isfrozen: True is64bit: True
Windows-7-6.1.7601-SP1 Windows ('64bit', 'WindowsPE')
('Windows', '7', '6.1.7601')
Python 2.7.5
Windows: ('7', '6.1.7601', 'SP1', 'Multiprocessor Free')
Traceback (most recent call last):
  File "site-packages\calibre\gui2\tweak_book\editor\syntax\base.py", line 145, in reformat_blocks
  File "site-packages\calibre\gui2\tweak_book\editor\syntax\base.py", line 29, in run_loop
  File "site-packages\calibre\gui2\tweak_book\editor\syntax\html.py", line 322, in normal
  File "site-packages\calibre\gui2\tweak_book\editor\syntax\html.py", line 260, in process_text
  File "site-packages\calibre\spell\dictionary.py", line 340, in recognized
AttributeError: 'Dictionaries' object has no attribute 'active_user_dictionaries'

[Kovid Goyal (kovid)]

Fixed in branch master. The fix will be in the next release. calibre is usually released every Friday.

 status fixreleased