让Python程序运行另一个Python程序，并同时运行这两个程序？

import subprocess

# 定义要运行的Python程序的文件路径
program1_path = '/path/to/program1.py'
program2_path = '/path/to/program2.py'

# 运行第一个Python程序
process1 = subprocess.Popen(['python', program1_path], stdout=subprocess.PIPE)

# 运行第二个Python程序
process2 = subprocess.Popen(['python', program2_path], stdout=subprocess.PIPE)

# 等待两个程序运行结束
process1.wait()
process2.wait()

# 获取两个程序的输出结果
output1 = process1.stdout.read()
output2 = process2.stdout.read()

# 打印输出结果
print("Program 1 output:", output1)
print("Program 2 output:", output2)