Python Qt5: AttributeError: 'module' 对象没有属性 'QApplication'
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Qt5: AttributeError: 'module' object has no attribute 'QApplication'
提问by Portu
System: 15.10 (Wily Werewolf) x64
系统：15.10（Wily Werewolf）x64
Code:
代码：
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'test.ui'
#
# Created by: PyQt5 UI code generator 5.5.1
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Form(object):
def setupUi(self, Form):
Form.setObjectName("Form")
Form.resize(400, 300)
self.pushButton = QtWidgets.QPushButton(Form)
self.pushButton.setGeometry(QtCore.QRect(120, 120, 85, 26))
self.pushButton.setObjectName("pushButton")
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
def retranslateUi(self, Form):
_translate = QtCore.QCoreApplication.translate
Form.setWindowTitle(_translate("Form", "Form"))
self.pushButton.setText(_translate("Form", "PushButton"))
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
ex = Ui_Form()
ex.show()
sys.exit(app.exec_())
I get the following error:
我收到以下错误：
app = QtGui.QApplication(sys.argv)
AttributeError: 'module' object has no attribute 'QApplication'
Basically, I designed the GUI with the Qt5 and then used pyuic5. I already installed PyQt5, not sure if the installation went through as expected.
基本上，我用 Qt5 设计了 GUI，然后使用了 pyuic5。我已经安装了 PyQt5，不确定安装是否按预期进行。
UI Design:
界面设计：
Any help will be highly appreciated.
任何帮助将不胜感激。
采纳答案by Peter
I am not sure how your main function was generated. I tried to replicate it with what seems to be the same version of pyuic5. I am calling it with the commandline pyuic5 -x untitled.ui(where the ui as in your case just contains a PushButton in a Widget). The -xoption has the effect: 'The generated Python code includes a small amount of additional code that creates and displays the GUI when it is executes as a standalone application.' (http://pyqt.sourceforge.net/Docs/PyQt5/designer.html) The result I get is
我不确定您的主要功能是如何生成的。我试图用似乎是相同版本的 pyuic5 来复制它。我用命令行调用它pyuic5 -x untitled.ui（在你的情况下，ui 只包含一个 Widget 中的 PushButton）。该-x选项具有以下效果：“生成的 Python 代码包括少量附加代码，这些代码在作为独立应用程序执行时创建和显示 GUI。” （http://pyqt.sourceforge.net/Docs/PyQt5/designer.html）我得到的结果是
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'untitled.ui'
#
# Created by: PyQt5 UI code generator 5.5.1
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Form(object):
def setupUi(self, Form):
Form.setObjectName("Form")
Form.resize(400, 300)
self.pushButton = QtWidgets.QPushButton(Form)
self.pushButton.setGeometry(QtCore.QRect(70, 50, 75, 23))
self.pushButton.setObjectName("pushButton")
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
def retranslateUi(self, Form):
_translate = QtCore.QCoreApplication.translate
Form.setWindowTitle(_translate("Form", "Form"))
self.pushButton.setText(_translate("Form", "PushButton"))
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
Form = QtWidgets.QWidget()
ui = Ui_Form()
ui.setupUi(Form)
Form.show()
sys.exit(app.exec_())
which has a different main function. The rest of the code is equivalent.
它具有不同的主要功能。其余代码是等效的。
