import re
rx = r"\s+(?=\d+/\d+/\d+\s)"
s = "28/11/2016 Mushroom 05/12/2016 Carrot 12/12/2016 Broccoli 19/12/2016 Potato"
results = re.split(rx, s)
print(results)
aW1wb3J0IHJlCnJ4ID0gciJccysoPz1cZCsvXGQrL1xkK1xzKSIKcyA9ICIyOC8xMS8yMDE2IE11c2hyb29tIDA1LzEyLzIwMTYgQ2Fycm90IDEyLzEyLzIwMTYgQnJvY2NvbGkgMTkvMTIvMjAxNiBQb3RhdG8iCnJlc3VsdHMgPSByZS5zcGxpdChyeCwgcykKcHJpbnQocmVzdWx0cyk=