QFileDialog and QPixmap

[Kurtan]

Hi , I'm the newer one about Python.
I'm happy to write here about my python issue.
I'm trying to open file and load image,i did something to let it works but i had the syntax error.
What can i do for browsing an image in directory and load it into ?

code# 


from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import QFileDialog,QLabel,QWidget
from PyQt5.QtGui import QPixmap



class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(800, 600)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.label = QtWidgets.QLabel(self.centralwidget)
        self.label.setGeometry(QtCore.QRect(170, 100, 491, 351))
        self.label.setText("")
        self.label.setPixmap(QPixmap("../../../../../Desktop/Tarih/Native Americans/Flag_of_the_Oneida_Nation_of_Wisconsin.png"))
        self.label.setObjectName("label")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 21))
        self.menubar.setObjectName("menubar")
        self.menuFile = QtWidgets.QMenu(self.menubar)
        self.menuFile.setObjectName("menuFile")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)
        self.actionOpen = QtWidgets.QAction(MainWindow)
        self.actionOpen.setObjectName("actionOpen")
        self.menuFile.addAction(self.actionOpen)
        self.menubar.addAction(self.menuFile.menuAction())

        self.retranslateUi(MainWindow)
        self.actionOpen.triggered.connect(self.label.show) # type: ignore
        QtCore.QMetaObject.connectSlotsByName(MainWindow)
        
        self.actionOpen.triggered.connect(self.OpenFile)
        self.le = QLabel

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.menuFile.setTitle(_translate("MainWindow", "File "))
        self.actionOpen.setText(_translate("MainWindow", "Open"))
    
    def OpenFile(self):
        options=QFileDialog.Options
        fname = QFileDialog.getOpenFileName(self, 'Open file','c:\\',"Image files (*.jpg *.png)",options=options)
        self.le.setPixmap(QPixmap(fname))
        
        

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_())
_text

I need to work on image process but i already didn't load an image .

[jsulm]

@Kurtan said in QFileDialog and QPixmap:

i had the syntax error

Please post the error and in which line it occurs

[Kurtan]

@jsulm This is a syntax Type-Error :

File "C:\Users\user\AppData\Local\Programs\Python\pyqt tutorial\Open.py", line 58, in OpenFile
    fname = QFileDialog.getOpenFileName(self, 'Open file','c:\\',"Image files (*.jpg *.png)",options=options)

TypeError: getOpenFileName(parent: QWidget = None, caption: str = '', directory: str = '', filter: str = '', initialFilter: str = '', options: Union[QFileDialog.Options, QFileDialog.Option] = 0): argument 1 has unexpected type 'Ui_MainWindow'

[jsulm]

@Kurtan said in QFileDialog and QPixmap:

fname = QFileDialog.getOpenFileName(self,

First argument is wrong: it has to be QWidget or derived class. You are passing Ui_MainWindow which is not derived from QWidget. Either pass None or something derived from QWidget.

[SGaist]

Hi and welcome to devnet,

If you want to do things cleanly, you should make MainWindow a class and move your OpenFile method there.

On a side note, you should follow either the Qt or the Python coding guidelines, it will make your code easier to read and follow.

[Kurtan]

@SGaist @jsulm Thank you .I achieved first step to browse and load an image.

[CristianMaureira]

Also, don't modify the generated file directly and import it, otherwise next time you use uic again, your changed will be overwritten https://doc.qt.io/qtforpython/tutorials/basictutorial/uifiles.html#option-a-generating-a-python-class