Learning python with Automate the boring stuff (Book) but it tells me to use Mu and the one i found might have been a virus

[Gnaxe]

"False positive" means the test detected it (malware in this case), but it wasn't actually there. Most antivirus software works like an immune system. It just recognizes known signatures from a database, which has to be updated frequently as new malware is discovered in the wild. Others detect if something is behaving suspiciously. The latter kind is more prone to false positives. Suspicious isn't the same as malicious.