python备份文件例子windows实现
python备份文件的例子在windows下采用winrar的rar命令运行可以成功,只是要有winrar软件和设置其环境变量。# Filename: backup_ver4.pyimport osimport time# 1.需要备份的文件目录source = ['F:\\python\\code']# 2. 备份文件到目标路径target_dir = 'F:\\python\\backup\\'# 3. The files are backed up into a zip file.# 4. The current day is the name of the subdirectory in the main directorytoday = target_dir + time.strftime('%Y%m%d')# The current time is the name of the zip archivenow = time.strftime('%H%M%S')# Take a comment from the user to create the name of the zip filecomment = input('Enter a comment -->')if len(comment)==0: target = today+os.sep+now+'.zip'else: target = today+os.sep+now+'_'+\ comment.replace(' ','_')+'.zip' # Notice the backslash!# Create the subdirectory if it isn't already thereif not os.path.exists(today): os.mkdir(today)# make directory print('Successfully created directory', today)# 5. 用winrar的rar命令压缩文件,但首先要安装有winrar且设置winrar到环境变量的路径path中zip_command = "rar a %s %s" %(target,''.join(source))# Run the backup#设置winrar到path环境中,这里已经手动添加,如图#os.system('set Path=%Path%;C:\Program Files\WinRAR')if os.system(zip_command)==0: print('Successful backup to', target)else: print('Backup FAILED')
设置winrar环境变量如下图:
http://dl.iteye.com/upload/attachment/258582/f33631c4-6a48-3cec-9eed-9cde5dcf2f6f.jpg
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