rvm - 如何在Python中使用subprocess准备shell执行环境

Answer 1

popen的对象有communicate方法，是可以将数据发送到stdin的

我试过这个不会阻塞线程，可以从输出中读到数据

p_cmd = subprocess.Popen('cmd',universal_newlines = True,stdin = subprocess.PIPE, stdout = subprocess.PIPE )
p_cmd.stdin.write('dir')
p_cmd.stdout.read(50)

Answer 2

command = "export HEHE=1"
    shell = subprocess.Popen(command, shell=True, executable="/bin/bash", stdin=subprocess.PIPE, stdout=subprocess.PIPE)
    so, se = shell.communicate("echo $HEHE\n")
    print "[]", so, se

alias也不行。。。