实时监控文件内容行数据变化，基于Python yield句法

Posted 2022-08-13 zhangphil

实时监控文件内容行数据变化，基于Python yield句法

import time


def my_read(file):
    while True:
        line = file.readline()
        if not line:
            time.sleep(1)
        else:
            yield line


if __name__ == '__main__':
    path = r'demo.txt'
    file = open(path)
    file.seek(0, 2)

    r = my_read(file)

    while True:
        time.sleep(1)
        char = next(r)
        print(char, end='')