我正在使用 QT Designer 没有任何问题,但是今天我开始了全新的 ubuntu 18.04 安装,但是这次当我从终端运行 PyQt5 程序时,它们没有显示任何窗口,从 atom-runner 运行时出现同样的问题(它没有甚至显示任何错误)
I was working with QT Designer with no issues but today i started a fresh ubuntu 18.04 install, but this time when i run the PyQt5 programs from terminal they doesnt show any windows, same issue when running from atom-runner (It doesnt even show any error)
我将 .ui 文件从 Qt Designer 保存后直接使用 pyuic5 导出为 .py,尝试了一个简单的空白窗口和同样的问题
I exported the .ui files into .py using pyuic5 directly after saving them from Qt Designer, tried a simple blank window and same problem
知道如何解决这个问题吗?
Any idea how can i fix this?
这是一个代码示例,一个应该显示但由于某种原因它不会显示的简单窗口
This is an example of the code, a simple window that should show but for some reason it wont
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'label.ui'
#
# Created by: PyQt5 UI code generator 5.11.3
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(315, 142)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.label = QtWidgets.QLabel(self.centralwidget)
self.label.setGeometry(QtCore.QRect(20, 20, 371, 111))
font = QtGui.QFont()
font.setPointSize(45)
self.label.setFont(font)
self.label.setObjectName("label")
MainWindow.setCentralWidget(self.centralwidget)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.label.setText(_translate("MainWindow", "DA LABEL"))
要生成可以使用 pyuic 显示窗口的代码,您必须使用 -x
选项:
To generate a code that can show a window using pyuic you must use the -x
option:
pyuic5 input.ui -o output.py -x
使用 -x
的上一条命令将以下代码添加到文件末尾:
The previous command using the -x
adds the following code to the end of the file:
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())
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