Python script working correctly for pure ASA but not on ASA image on Firepower

Have a small script that logs into multiple VPN gateways and fetch the data. On pure ASA, no issue. But on FXOS with ASA image, it does not work. Log in works fine, but it does not show the output. For Is there any way I can check what is going on ? I don't want to run debug on the FP.

Here's the code. https://pastebin.com/Fg5TTGNL