python - How to select the last column of dataframe

Question

I have done some searching for the answer to this question, but all I can figure out is this:

df[df.columns[len(df.columns)-1]]

which to me seems unweildy, and un-pythonic (and slow?).

What is the easiest way to select the data for the last column in a pandas dataframe without specifying the name of the column?

Answer 1

Use iloc and select all rows (:) against the last column (-1):

df.iloc[:,-1:]