Answers for "pandas split on last instance of character"

python split only last occurrence of a character

s.rsplit(',', 1)
s.rpartition(',')

Get last “column” after .str.split() operation on column in pandas DataFrame

>>> temp = pd.DataFrame({'ticker' : ['spx 5/25/2001 p500', 'spx 5/25/2001 p600', 'spx 5/25/2001 p700']})
>>> temp['ticker'].str.split(' ').str[-1]
0    p500
1    p600
2    p700
Name: ticker, dtype: object