Dir命令不打印文件和文件夹大小

Question

    date_string = r'C:\apache-tomcat-8.5.16\g\after\said\%s' % (now.strftime('%Y.%b\%d'))
   if os.path.dirname('C:\apache-tomcat-8.5.16\g\after\said\%s' % (now.strftime('%Y.%b\%d'))):
      print "File exist"
      #sizefile = "".join("cd", date_string)
      #print sizefile
      sathya = os.system('dir /s ' +date_string)
      print(sathya)
else:
      print "no"

输出是：

File exist
 Volume in drive C has no label.
 Volume Serial Number is F497-220A
File Not Found
1

C:\Users\Administrator\Desktop>

请帮忙。

我通过使用子流程解决了这个问题，找到下面的代码;

date_string = r''C:\apache-tomcat-8.5.16\g\after\said\%s' % (now.strftime('%Y.%b\%d'))
    cmd = "dir /s"+" "+date_string+ ">> gad"
    subprocess.call(cmd , shell=True)

请使用subprocess而不是os.system（）。