python - Selected joining of lines -


i new python , need solve following (by hand or python): dataset, each file consists of undefined-groups of lines of varying number of numbers, followed 1 line of text incl. dates , numbers (sorry if sentence doesn't make sence):

2,  4,  6,  1,  2,  02-sep-2016, blah blah, blah, 83838338  3,  0,  0,  03-aug-2000, blah, 300033

i need highest number above line of text in front of text , rest deleted:

6,02-sep-2016, blah blah, blah, 83838338  3,03-aug-2000, blah, 300033

i know max() function, how specify general rule files numbers include, , how can selectively turn numbers int() without including sentence? tried if statement len(line)<=3 , not working.

you can read input file using for line in my_file: .... if lines want use max on follow format described (a number followed comma , carriage return), can store them in set integers discarding comma , \n using slice , transtyping result (i.e. using int(line[:-2])). max gives largest element of set, can convert string str(). distinguish between lines , ones feature date, find in date lines (i.e. characters or -).


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