在python脚本中运行系统命令

我一直在阅读“
Python的一个字节”来学习语法和方法等…

我刚开始使用一个简单的备份脚本(直接来自本书):

#!/usr/bin/python

# Filename: backup_ver1.py

import os

import time

# 1. The files and directories to be backed up are specified in a list.
source = ['"C:\\My Documents"', 'C:\\Code']

# Notice we had to use double quotes inside the string for names with spaces in it.
# 2. The backup must be stored in a main backup directory
target_dir = 'E:\\Backup' # Remember to change this to what you will be using

# 3. The files are backed up into a zip file.
# 4. The name of the zip archive is the current date and time
target = target_dir + os.sep + time.strftime('%Y%m%d%H%M%S') + '.zip'


# 5. We use the zip command to put the files in a zip archive
zip_command = "zip -qr {0} {1}".format(target, ' '.join(source))


# Run the backup

if os.system(zip_command) == 0:
    print('Successful backup to', target)
else:
    print('Backup FAILED')

对,它失败了.如果我在终端中运行zip命令它工作正常.我认为它失败了,因为zip_command从未实际运行过.我不知道如何运行它.

只需输入zip_command就行不通了. (我使用的是python 3.1)

最佳答案 当您在shell中手动输入命令时,您确定Python脚本是否看到了您可以访问的相同环境?当Python启动命令时,可能是zip不在路径上.

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