dropping a row in pandas with dates indexes, python

Question

I'm trying to drop the last row in a dataframe created by pandas in python and seem to be having trouble.

index = DateRange('1/1/2000', periods=8)
df = DataFrame(randn(8, 3), index=index, columns=['A', 'B', 'C'])

I tried the drop method like this:

df.drop([shape(df)[0]-1], axis = 0)

but it keeps saying label not contained in the axis.

I also tried to drop by index name and it still doesn't seem to be working.

Any advice would be appreciated. Thanks!!!

Answer 1

df.ix[:-1]

returns the original DataFrame with the last row removed.

Answer 2

Referencing the DataFrame directly to retrieve all but the last index worked for me.

df[:-1]