pySim ModuleNotFoundError: No module named 'construct'

Hi all, I am a happy user of pySim - thanks a lot for the work on it. Unfortunately, I think something broke during recent updates that might have to do with software versions. I went through a full reinstall and have done all the software installations mentioned in the README.md, but when I do: $ ./pySim-read.py -p0 I get: Traceback (most recent call last): File "./pySim-read.py", line 31, in <module> from pySim.ts_51_011 import EF, DF, EF_SST_map, EF_AD File "/home/gagarin/Data/pysim/pySim/ts_51_011.py", line 324, in <module> from construct import * ModuleNotFoundError: No module named 'construct' I tried: $ sudo pip3 install construct Requirement already satisfied: construct in /usr/local/lib/python3.8/dist-packages (2.10.67) But that did not solve the issue. Any pointers are very welcome. All the best, Niels PS FYI: $ cat /proc/version Linux version 5.8.0-50-generic (buildd@lgw01-amd64-051) (gcc (Ubuntu 10.2.0-13ubuntu1) 10.2.0, GNU ld (GNU Binutils for Ubuntu) 2.35.1) #56-Ubuntu SMP Mon Apr 12 17:18:36 UTC 2021 $ lsusb | grep OMNI Bus 001 Device 033: ID 076b:3031 OmniKey AG OMNIKEY 3x21 Smart Card Reader -- Niels ten Oever, PhD Postdoctoral Researcher - Media Studies Department - University of Amsterdam Research Fellow - Centre for Internet and Human Rights - European University Viadrina Associated Scholar - Centro de Tecnologia e Sociedade - Fundação Getúlio Vargas https://nielstenoever.net - mail(a)nielstenoever.net - @nielstenoever - +31629051853 PGP: 2458 0B70 5C4A FD8A 9488 643A 0ED8 3F3A 468A C8B3 Read my latest article on Internet infrastructure governance in New Media & Society here: https://journals.sagepub.com/doi/full/10.1177/1461444820929320