IPv6转化成全写与简写，字母大写或小写：

from IPy import IP
# IPv6转成全写并字母大写
ipStr = IP("2403:A200:A200:1100:0000:0000:F00:3",make_net=True).strFullsize().upper()

# IPv6 转化成简写并字母小写
IP("2403:A200:A200:1100:0000:0000:F00:3",make_net=True).net().lower()