where.py

## where() to replace values 
food_names_list = ["Cows' milk, whole", 'skim', 'Buttermilk, cultured']
boolean_idx = dairy_table["Food"].isin(food_names_list)
dairy_table['Food'].where(boolean_idx, other='Others')

Out[187]: 
index0        Cows' milk, whole
index1                     skim
index2     Buttermilk, cultured
index3                   Others
index4                   Others
......