Pandas: Knowing when an operation affects the original dataframe

Question

I love pandas and have been using it for years and feel pretty confident I have a good handle on how to subset dataframes and deal with views vs copies appropriately (though

Answer 1

I have the same doubt, I searched for this response in the past without success. So now, I just certify that original is not changing and use this peace of code to the program at begining to remove warnings:

 import pandas as pd
 pd.options.mode.chained_assignment = None  # default='warn'