python 删除老的备份文件和web日志

#!/usr/bin/python
# -*- coding: UTF-8 -*-
import os
import shutil

# 环境路径，根据服务器修改
env_path = "/home/wwwroot/LNMP/"

# 错误日志文件
err_log_file = env_path + "logs/amh-php-errors.log"

# 删除网站缓存或日志文件
domain = env_path + "domain/"
dir_name = 'runtime'
list_dir = []

# 清空amh错误日志
if os.path.isfile(err_log_file):
    fo = open(err_log_file, "r+")
    fo.truncate()


# 删除多余备份文件
backup_path = "/home/backup/"
if not os.path.exists(backup_path):
    os.makedirs(backup_path)

dirs = os.listdir(backup_path)
find_str = ".tar.gz.amh"
list_file = []

for file in dirs:
    isfile = os.path.isfile(backup_path + file)
    if isfile is False:
        continue
    if find_str not in file:
        continue
    list_file.append(file)

if len(list_file) > 0:
    list_file.sort()
    last = list_file[-1]
    for i in list_file:
        if i != last:
            os.remove(backup_path + i)


# 查找目录名
def search(path):
    for filename in os.listdir(path):
        fp = os.path.join(path, filename)
        if os.path.isdir(fp):
            if dir_name == filename:
                list_dir.append(fp)
            else:
                search(fp)


search(domain)
print(list_dir)

for dir_path in list_dir:
    shutil.rmtree(dir_path)