python监听文件夹里文件变化

import operator
import os
import time


def get_timestamp(dir_path):
    # 获取文件夹内所有文件的修改时间
    timestamp = []
    for root, dirs, files in os.walk(dir_path):
        for file in files:
            _file = os.path.join(root, file)  # 构建完整路径
            modify_time_timestamp = os.path.getmtime(_file)  # 获取修改时间戳
            timestamp.append(modify_time_timestamp)
    return timestamp


def timestamp_change(dir_path):
    # 获取文件夹内所有文件的修改时间
    timestamp_old = get_timestamp(dir_path)
    while True:  # 持续监听
        timestamp_new = get_timestamp(dir_path)
        eq = operator.eq(timestamp_old, timestamp_new)  # 比较时间戳是否变化
        if not eq:
            # 当时间戳不一致时将新时间戳转为旧时间戳
            timestamp_old = timestamp_new.copy()
        # yield "data:" + str(req) + "\n\n"  # 独立运行时不添加，需要返回时添加
        time.sleep(2)  # 休息2秒