This Python script utilizes the GeoPy geocoding library to batch geocode a number of addresses, using various services until a pair of latitude/longitude values are returned. Python 3 port and refactor of a script by @rgdonohue.
https://gist.github.com/ericmhuntley/0c293113aa75a254237c143e0cf962fa
Built to anticipate an input csv should that includes columns named street, city, state, country.