https://github.com/nytimes/ingredient-phrase-tagger

Or because of the dreaded paywall:

https://github.com/mtlynch/zestful-client

Wait no longer, I introduce PyIng. An easy to use python package for changing this "2 ounces of spicy melon" into this {name: melon, unit: ounces, qty: 2.0}.

https://github.com/whitew1994WW/PyIng