Private Key To xprv

Generated Root Key (xprv) from Private Key hex

convert Private Key hex to xprv (root key)

in example can see how to generated random private key (hex) and convert to root key (xprv) with Blockthon:

from Blockthon.Wallet import PrivateKey_To_RootKey, PrivateKey

# generated random private key
key = PrivateKey()
# convert hex private key to xprv
xprv_rootKey = PrivateKey_To_RootKey(key)