求大神用Python3把这个加密算法实现一下，谢谢！

public static String pwdEncode(String pwd, String key) {
String pe = "";
for (int i = 0; i < pwd.length(); i++) {
int ki = key.charAt(key.length() - i % key.length() - 1) ^ pwd.charAt(i);
char _l = (char)((ki & 0x0F) + 0x36);
char _h = (char)((ki >> 4 & 0x0F) + 0x63);
if (i % 2 == 0) pe += String.valueOf(_l) + String.valueOf(_h);
else pe += String.valueOf(_h) + String.valueOf(_l);
}
return pe;
}
public static final String encoding_key = "1234567890";