Split an AnalysisTools resubmission job into more subjobs and calculate the starts and stops

split_jobs_again.py

import sys 

# The only command line argument should be the path to a file
# where each line is a set of arguments for resubmission.
with open(sys.argv[1]) as f:
    lines = f.read().splitlines()

for line in lines:
    start, stop = line.split()[-3:-1]
    start = float(start)
    stop = float(stop)
    step = (stop - start) / 20. 

    current_start = start
    for i in range(20):
        newargs = line.split()
        newargs[-4] = newargs[-4].replace('.root', 'part{0!s}.root'.format(i))
        newargs[-3] = str(current_start)
        newargs[-2] = str(current_start + step)
        current_start += step
        print ' '.join(newargs)