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I get the same error message when running the command with pyecm 2.0.3-1 on Ubuntu Groovy. Marking as confirmed. ** Changed in: pyecm (Ubuntu) Status: New => Confirmed ** Tags added: focal groovy -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1899312 Title: When try to factor RSA-260 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pyecm/+bug/1899312/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs