嗨,我在qt中编写了一个python程序,我想在按钮中调用一个函数,但不起作用
我的代码是:
我用pycharm编写此代码并运行此代码,但它不起作用我在空闲环境和其他环境中对其进行了测试,但这是行不通的。当我使用jcopy函数来按下按钮事件时,它的工作以及将lineEdit文本复制到lineEdit_2文本中,但是当我想使用jtrans函数来翻译lineEdit的文本并将结果复制到lineEdit2程序时,将无法正常工作。在pycharm和vs中,idle不会发送任何错误,但不能正常工作,所以我编写了在终端中运行的相同的consol程序,当前运行情况正好]
from PyQt5 import QtCore, QtGui, QtWidgets
from googletrans import Translator
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(598, 456)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.label = QtWidgets.QLabel(self.centralwidget)
self.label.setGeometry(QtCore.QRect(30, 30, 201, 16))
font = QtGui.QFont()
font.setPointSize(12)
font.setBold(True)
font.setWeight(75)
self.label.setFont(font)
self.label.setObjectName("label")
self.comboBox = QtWidgets.QComboBox(self.centralwidget)
self.comboBox.setGeometry(QtCore.QRect(150, 220, 131, 22))
self.comboBox.setObjectName("comboBox")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.label_2 = QtWidgets.QLabel(self.centralwidget)
self.label_2.setGeometry(QtCore.QRect(30, 220, 201, 16))
font = QtGui.QFont()
font.setPointSize(12)
font.setBold(True)
font.setWeight(75)
self.label_2.setFont(font)
self.label_2.setObjectName("label_2")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(480, 220, 75, 23))
self.pushButton.setObjectName("pushButton")
self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
self.lineEdit.setGeometry(QtCore.QRect(30, 60, 551, 131))
self.lineEdit.setText("")
self.lineEdit.setObjectName("lineEdit")
self.lineEdit_2 = QtWidgets.QLineEdit(self.centralwidget)
self.lineEdit_2.setGeometry(QtCore.QRect(30, 250, 541, 141))
self.lineEdit_2.setObjectName("lineEdit_2")
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 598, 21))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
self.pushButton.clicked.connect(self.jtrans)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.label.setText(_translate("MainWindow", "Input Text:"))
self.comboBox.setItemText(0, _translate("MainWindow", "persian"))
self.comboBox.setItemText(1, _translate("MainWindow", "english"))
self.comboBox.setItemText(2, _translate("MainWindow", "arabic"))
self.comboBox.setItemText(3, _translate("MainWindow", "danish"))
self.comboBox.setItemText(4, _translate("MainWindow", "dutch"))
self.label_2.setText(_translate("MainWindow", "output Text:"))
self.pushButton.setText(_translate("MainWindow", "translate"))
# def jcopy(self):
# t1=self.lineEdit.text()
# self.lineEdit_2.setText(t1)
def jtrans(self, translator=None):
srcString = self.lineEdit.text()
srcLang = translator.detect(srcString)
dstLang = self.comboBox.currentText()
translated = translator.translate(srcString, src=srcLang, dest=dstLang)
self.lineEdit_2.setText(translated.text)
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_())
仅jcopy函数是我知道按钮可以运行代码的功能
问题在代码段中:
def jtrans(self, translator=None):
srcString = self.lineEdit.text()
srcLang = translator.detect(srcString)
dstLang = self.comboBox.currentText()
translated = translator.translate(srcString, src=srcLang, dest=dstLang)
self.lineEdit_2.setText(translated.text)
任何人都可以解决这个问题tnx
您有一个小错误:为什么将对象translator
设置为def jtrans(self, translator=None):
?您认为对象translator
是神奇创造的吗?好吧,不。如果检查到错误消息:
Traceback (most recent call last):
File "foo.py", line 74, in jtrans
srcLang = translator.detect(srcString)
AttributeError: 'bool' object has no attribute 'detect'
可以理解,它不是神奇创建的,但是X接受默认单击信号发送的值:一个布尔值。
在提出PyQt解决方案之前,我建议不要修改Qt Designer生成的代码,因此您将不得不使用pyuic并重新生成文件,我将假定生成的文件名为gui.py。
请记住,翻译过程非常耗时,因此可能会使GUI崩溃,因此您必须在另一个线程中运行它。您的代码中的另一个问题是detect
方法不返回语言,但是返回具有语言信息的Detected
类的对象。
考虑到上述,解决方法是:
main.py
import sys
import threading
from PyQt5 import QtCore, QtGui, QtWidgets
from googletrans import Translator
from gui import Ui_MainWindow
class WorkerTranslator(QtCore.QObject):
translateSignal = QtCore.pyqtSignal(str)
def translate(self, text, dst_lang):
threading.Thread(
target=self._translate, args=(text, dst_lang), daemon=True
).start()
def _translate(self, text, dst_lang):
translator = Translator()
src_lang = translator.detect(text).lang
translated = translator.translate(text, src=src_lang, dest=dst_lang)
self.translateSignal.emit(translated.text)
class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.setupUi(self)
self.pushButton.clicked.connect(self.translate)
self.translator = WorkerTranslator()
self.translator.translateSignal.connect(self.lineEdit_2.setText)
@QtCore.pyqtSlot()
def translate(self):
text = self.lineEdit.text()
dst_lang = self.comboBox.currentText()
self.translator.translate(text, dst_lang)
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
w = MainWindow()
w.show()
sys.exit(app.exec_())
├── gui.py
└── main.py