py

def file2list(filepath):
    ret = []
    with open(filepath, encoding='utf8', mode='r') as f:
        ret = [line.rstrip('\n') for line in f.readlines()]
    return ret

LB = '\n'
def string2lines(s):
    return s.split(LB)
def lines2string(lines):
    return LB.join(lines)

def list2file(filepath, ls):
    with open(filepath, encoding='utf8', mode='w') as f:
        f.writelines(['{:}\n'.format(line) for line in ls] )

def file2str(filepath):
    ret = ''
    with open(filepath, encoding='utf8', mode='r') as f:
        ret = f.read()
    return ret

def str2file(filepath, s):
    with open(filepath, encoding='utf8', mode='w') as f:
        f.write(s)