nltk/nltk — pull request #404 by rmalouf (2013-05-10 14:20:54+00:00)
Title: Move all tkinter calls into main thread (fix #82)

The collocations and concordance app fail on systems where tcl/tk isn't compiled with thread support. The fix is to move all of the calls to tkinter into the main thread and using a queue rather than tkinter events for communication between sub-threads and the main thread.