"Speaker: Jim Baker Working with weak references should not just be for Python wizards. Whether you have a cache, memoizing a function, tracking objects, or various other bookkeeping needs, you definitely do not want code leaking memory or resources. In this talk, we will look at illuminating examples drawn from a variety of sources on how to use weak references to prevent such bugs. Slides can be found at: https://speakerdeck.com/pycon2015 and https://github.com/PyCon/2015-slides"