frequently used script

from urllib import request
base_url = "http://ilab.usc.edu/neo2/dataset/tower/training/Neovision2-Training-Tower-"
def (base_url):
    for i in range(1,51):
        url = base_url + "%03d"%i + '.csv'
        with request.urlopen(url) as web:
            with open("Neovision2-Training-Tower-"+"%03d"%i + '.csv', 'wb') as outfile:
                outfile.write(web.read())