<#read in date format
dateparse=lambda dates:pd.datetime.strptime(dates,'% Y-% m')
data=pd.read_csv('C:\\Users\\rajesh\\STATISTICS WITH PYTHON\\Airpassengers.csv',index_col='Month',date_parser=dateparse,dtype='float')
data.head()>
I get an error :ValueError: ‘%’ is a bad directive in format ‘% Y-% m’