so to be sure I have PYwallet properly installed and operating as it should, I ran it on a hard drive with bitcoin core (which I assume should already have a wallet and keys) , I also had a folder of previously found/ created wallets and partial wallets (results from running PY wallet multiple times on multiple drives) on that same hard drive, ran PYwallet and got this result: Found 70 possible wallets
found 0 possible encrypted keys
found 0 possible unencrypted keys
the wallet is encrypted and the passphrase is correct
importing:...…..

 I was hoping PY wallet would recognize the bitcoin core wallet and I would get at least the one good key off the drive!!
what am I doing wrong??

then since I'm pretty bad with computers, don't trust myself with proper installation, operation of PY wallet and can't run simple commands as dump wallet or privkeys…..  I ran Electrum to sweep keys from the Py wallet generated/ found wallets which gave me a page full of numbers multiple lines of zeros and a bunch of numbers on the last 3 lines. looked it up and referred me to adding p2wpkh IN front of the key but its a whole page full of numbers and I can't tell which is the key!!

any advice??
Thank you,