file = open('FILENAME', mode)
mode --r,w,x,a,b,+
f = open("test.txt", "w")
f.readline() --type str
f.readlines() -- type list
file = open('FILENAME', mode)
mode --r,w,x,a,b,+
f = open("test.txt", "w")
f.readline() --type str
f.readlines() -- type list