undocumented python version

[clach04]

[/unsorted/scans] python3 /root/py/dugu/src/dugu.py  ## python 3.5
Traceback (most recent call last):
  File "/root/py/dugu/src/dugu.py", line 23, in <module>
    from dugu.main import DuGuMain
  File "/root/py/dugu/src/dugu/main.py", line 78
    p(f"Current memory usage is {current / 10 ** 6}MB; Peak was {peak / 10 ** 6}MB")
                                                                                  ^
SyntaxError: invalid syntax
[/unsorted/scans] python3.8 /root/py/dugu/src/dugu.py
Minimum required Python version is: 3.8.6 not 3.8.4

Took: 0.015789298922754824 seconds
Current memory usage is 0.049036MB; Peak was 0.04926MB