localgb.py 文件源码

def delimited(file, delimiter='\n', bufsize=4096):
    buf = ''
    while True:
        newbuf = file.read(bufsize)
        if not newbuf:
            yield buf
            return
        buf += newbuf
        lines = buf.split(delimiter)
        for line in lines[:-1]:
            yield line
        buf = lines[-1]