When debugging an application using pyparsing, it is possible that the debugger calls dir() on a BNFTest instance, which fails with:
TypeError: can only concatenate list (not "dict_keys") to list
I have posted this issue here, before finding that bug:
There is also possible fix
Thanks for reporting this, a fixed version has been checked into the SF SVN repository, and will be included in the next release.
Once again another fine blog piece, its going right in my favorites folder.
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