import glob
sciezka = "/scores/model.iter*.npz.bleu"
for file in glob.glob(sciezka):
with open(file, 'r') as plik:
for line in plik.readlines():
bleu = float(line[line.find("=")+ 1:line.find(",")])
if bleu >0:
max = bleu
maxi = file
plik.close()
print ( maxi )