import os
#a =[]

#plik = file = open("model.iter10000.npz.bleu", "r")
#print(plik)

def open_plik(source, file):
    plik=file = open(os.path.join(source, file), "r")
    #plik = file = open(file, "r")
    for linia in plik.readlines():
        #print(linia.strip())
        test = linia.split(',')
        test2 = test[0]
        test3 = test2.split('=')
        test4 = float(test3[1])
        plik.close()
    return(test4)

sub_dir = "J:\\PycharmProjects\\Python2017\\labs03\\scores"
Folder_list = os.listdir (sub_dir)
print(Folder_list)
value=0.0
for i  in Folder_list:
    #print(i)
    file = i
    print(file)
    check=float(open_plik(sub_dir,file))
    print(check,value)
    if check>value:
        file_name=os.path.join(sub_dir, file)
        value= check
    else:
        pass
print("poprawna wartosc", value,"FILE:",file_name)