Very nice collection. I like the cacheutils LRI and LRU setups [1]. Interested in the StringBuffer [2]. The Table object looks useful [3]. Overall some great additions in utils that you can tell were added through usage and shipping needs especially in strutils, listutils, formatutils etc. Lots of common ones in our own python or other platform libs.

In any review there is always a few WTFs like this one [4]. I am surprised you didn't get arrested during that development

[1] https://github.com/mahmoud/boltons/blob/master/boltons/cache...

[2] https://github.com/mahmoud/boltons/blob/master/boltons/strut...

[3] https://github.com/mahmoud/boltons/blob/master/boltons/table...

[4] https://github.com/mahmoud/boltons/blob/master/boltons/easte...