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Я пытаюсь отобразить изображение с URL-адреса в pyside6, но ничего не получается.

 def getIcon(data):
    iconID = data['weather'][0]['icon']
    icon = QPixmap("http://openweathermap.org/img/w/"   iconID   ".png");
    return icon
 

И

 self.temperatureIcon = QtWidgets.QLabel(self).setPixmap(getIcon(self.weatherData))
 

это код, который у меня есть.

QPixmap не загружает изображение с URL-адреса, поэтому вы должны загрузить его, например, с помощью QNetworkAccessManager:

 import sys
from functools import cached_property

from PySide6.QtCore import Signal, QObject, Qt, QUrl
from PySide6.QtGui import QImage, QPixmap
from PySide6.QtNetwork import QNetworkAccessManager, QNetworkReply, QNetworkRequest
from PySide6.QtWidgets import (
    QApplication,
    QGridLayout,
    QLabel,
    QLineEdit,
    QPushButton,
    QWidget,
)


class ImageDownloader(QObject):
    finished = Signal(QImage)

    def __init__(self, parent=None):
        super().__init__(parent)
        self.manager.finished.connect(self.handle_finished)

    @cached_property
    def manager(self):
        return QNetworkAccessManager()

    def start_download(self, url):
        self.manager.get(QNetworkRequest(url))

    def handle_finished(self, reply):
        if reply.error() != QNetworkReply.NoError:
            print("error: ", reply.errorString())
            return
        image = QImage()
        image.loadFromData(reply.readAll())
        self.finished.emit(image)


class Widget(QWidget):
    def __init__(self, parent=None):
        super().__init__(parent)
        self.lineedit = QLineEdit()
        self.button = QPushButton("Start")
        self.label = QLabel(alignment=Qt.AlignCenter)

        lay = QGridLayout(self)
        lay.addWidget(self.lineedit, 0, 0)
        lay.addWidget(self.button, 0, 1)
        lay.addWidget(self.label, 1, 0, 1, 2)

        self.downloader = ImageDownloader()

        self.downloader.finished.connect(self.handle_finished)
        self.button.clicked.connect(self.handle_clicked)

        self.lineedit.setText("http://openweathermap.org/img/wn/01d@2x.png")

        self.resize(640, 480)

    def handle_finished(self, image):
        pixmap = QPixmap.fromImage(image)
        self.label.setPixmap(pixmap)

    def handle_clicked(self):
        url = QUrl.fromUserInput(self.lineedit.text())
        self.downloader.start_download(url)


def main():
    app = QApplication(sys.argv)
    w = Widget()
    w.show()
    sys.exit(app.exec())


if __name__ == "__main__":
    main()
 

Вот еще одно простое решениепример:

 import sys
import requests
from PySide6.QtGui     import QPixmap, QScreen
from PySide6.QtWidgets import QApplication, QWidget, QLabel


URL = 'https://upload.wikimedia.org/wikipedia/en/7/7d/Lenna_(test_image).png'


class App(QWidget):

    def __init__(self):
        super().__init__()
        self.initUI()
 
    def initUI(self):
        self.setWindowTitle('getAndSetImageFromURL()')
        self.label  = QLabel(self)
        self.pixmap = QPixmap()
        self.getAndSetImageFromURL(URL)
        self.resize(self.pixmap.width(),self.pixmap.height())
        screenSize = QScreen.availableGeometry(QApplication.primaryScreen())
        frmX = (screenSize.width () - self.width ())/2
        frmY = (screenSize.height() - self.height())/2
        self.move(frmX, frmY)
        self.show() 
    
    def getAndSetImageFromURL(self,imageURL):
        request = requests.get(imageURL)
        self.pixmap.loadFromData(request.content)
        self.label.setPixmap(self.pixmap)
        #QApplication.processEvents() # uncoment if executed on loop
    
      
if __name__ == '__main__':
    app = QApplication(sys.argv)
    gui = App()
    sys.exit(app.exec())
 

какие результаты: