Python2 re notes

From raju

re.split

Ref:- https://docs.python.org/2/library/re.html#re.split

    a = 'portfolio_20180305_20180406_raju.csv'
    re.split('(\d{4}\d{2}\d{2})', a, 1)
    ['portfolio_', '20180305', '_20180406_raju.csv']
    
    a = 'portfolio_20180305'
    re.split('(\d{4}\d{2}\d{2})', a, 1)
    ['portfolio_', '20180305', '']
    
    a = 'portfolio'
    re.split('(\d{4}\d{2}\d{2})', a, 1)
    ['portfolio']
    
    a = '20180305_portfolio'
    re.split('(\d{4}\d{2}\d{2})', a, 1)
    ['', '20180305', '_portfolio']
    
    a = '20180519'
    re.split('(\d{4}\d{2}\d{2})', a, 1)
    ['', '20180519', '']