mcpi - how to post commands to chat

[Srichakradhar Reddy Nagireddy]

I have this simple script to summon an armor stand.

import mcpi.minecraft as minecraft

mc = minecraft.Minecraft.create()

cmd = '/summon armor_stand ~ ~2 ~1 {NoBasePlate:1,ShowArms:1,Invulnerable:1,CustomNameVisible:1b,Tags:["SocialBot"]}'

mc.postToChat(cmd)

but, it doesn't work when run.

Could anyone help me understand what's going wrong and help me with executing commands please?

Best,

Sri.