install pyqt5 failed. jetpak3.3 in TX2 board.

install pyqt5 failed. jetpak3.3 in TX2 board.
exp:
1、import PyQt5 # this cmd is ok
2、from PyQt5 import QtGui # but failed.
libQt5Gui.so.5: cannot open shared object file: No such file or directory
and ldd libQt5Gui.so.5, can not find libQt5Core.so。

how to solve it ??

Looks like you ran into the same problem this thread lists:
https://devtalk.nvidia.com/default/topic/1044169/jetson-tx2/pyqt5-missing-libqt5gui-so-5/