Pyton version changing results?

[geohei]

Hi.

Same options - Same mailbox
Different user - Different Ubuntu version

...
If you had NOT selected the 'dry-run' option,
  6 messages would now be marked as deleted.
geohei@altar:~/imapdedup$ python3 -V
Python 3.6.9

...
If you had NOT selected the 'dry-run' option,
  18 messages would now be marked as deleted.
root@vm96:~/imapdedup# python3 -V
Python 3.8.10

Does the python3 version change the results?