小编mvl*_*dic的帖子

当args参数作为序列给出时,我遇到了subprocess.Popen的问题.

例如:

import subprocess
maildir = "/home/support/Maildir"

这工作(它打印正确的/ home/support/Maildir目录大小):

size = subprocess.Popen(["du -s -b " + maildir], shell=True,
                        stdout=subprocess.PIPE).communicate()[0].split()[0]
print size

但是,这不起作用(尝试):

size = subprocess.Popen(["du", "-s -b", maildir], shell=True,
                        stdout=subprocess.PIPE).communicate()[0].split()[0]
print size

怎么了？