In order to retrieve the IMEI of your cellular enabled Pycom module you will firstly need to make sure you are on firmware version
1.17.0.b1 or higher. You can check your firmware version by running the following code on you device via the interactive REPL.
import os os.uname() (sysname='GPy', nodename='GPy', release='1.17.0.b1', version='v1.8.6-849-d0dc708 on 2018-02-27', machine='GPy with ESP32')
Once you have a compatible firmware, you can run the following code to get your modules IMEI number:
from network import LTE lte = LTE() lte.send_at_cmd('AT+CGSN=1')
You’ll get a return string like this
\r\n+CGSN: "354347xxxxxxxxx"\r\n\r\nOK. The value between the double quotes is your IMEI.