python打包Failed to execute script（unable to find Qt5Core.dll on PATH）问题解决

环境

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python3.7

pyinstaller3.5

pyQt5.9.2

 

打包

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1.pyinstaller -F -w mywidget.py

打开exe弹出警告框Failed to execute script，看不到具体原因

2.用pyinstaller -F -c mywidget.py 打包

用cmd打开exe查看原因

 

解决方法

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pyqt5库对系统变量的加载存在bug，在主程序中pyqt5库import之前就对系统变量进行手动设置，import代码如下：

import sys, os
if hasattr(sys, 'frozen'):
    os.environ['PATH'] = sys._MEIPASS + ";" + os.environ['PATH']
from PyQt5.QtWidgets import QMainWindow, QTextEdit, QApplication
from PyQt5.QtCore import QTimer

 

参考

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https://blog.youkuaiyun.com/zwyact/article/details/99778898