阻止以编程方式运行的系统命令的标准错误输出

try:
    # 运行系统命令
    output = subprocess.check_output(command, stderr=subprocess.STDOUT, shell=True)
except subprocess.CalledProcessError as e:
    # 处理错误输出
    error_output = e.output

with open(os.devnull, 'w') as f:
    subprocess.check_call(command, stderr=f, shell=True)

r, w = os.pipe()
p = subprocess.Popen(command, stdout=w, stderr=subprocess.STDOUT, shell=True)
os.close(w)
os.close(r)