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What to Use Instead of QWebEngineView for PyQt 5.6 with Anaconda 3


What to Use Instead of QWebEngineView for PyQt 5.6 with Anaconda 3

By : user7447393
Date : October 18 2020, 01:08 AM
it helps some times QtWebKit provides the QWebView widget, that can be used in much the same way as QWebEngineView
code :
from PyQt5 import QtWidgets, QtWebKitWidgets

html = '''<body>
            <b>Hello world!</b>
          </body>'''

app = QtWidgets.QApplication([])
webview = QtWebKitWidgets.QWebView()
webview.setHtml(html)
webview.show()
app.exec_()


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Window is closing immediately after I run program in PyQt 4 (anaconda) [PyCharm 4.5]

Window is closing immediately after I run program in PyQt 4 (anaconda) [PyCharm 4.5]


By : user3830143
Date : March 29 2020, 07:55 AM
will help you You need to block the execution of the program after you call window.show() so that the window object remains active otherwise it will be garbage collected. app.exec_() does this for you.
code :
{__author__ = 'Jay'

import sys
from PyQt4 import QtGui

app = QtGui.QApplication(sys.argv)

window = QtGui.QWidget()

window.show()
app.exec_()}     # added this line
PyQt Windows installer with Anaconda Python--PyQt4 not found; how do I troubleshoot?

PyQt Windows installer with Anaconda Python--PyQt4 not found; how do I troubleshoot?


By : PowerRC
Date : March 29 2020, 07:55 AM
will help you pyqt_fit appears to be a completely separate package, not maintained by the PyQt developers.
To use PyQt4, you want to try from PyQt4 import QtCore, QtGui. I suspect the auto-completion of your python terminal just doesn't know about the PyQt package you installed.
Launch javascript function from pyqt QWebEngineView

Launch javascript function from pyqt QWebEngineView


By : 1000 Gibibit
Date : March 29 2020, 07:55 AM
Hope that helps I'm planning on executing a javascript function from pyqt QWebEngine. I followed a example which was using a map and map bound were retrieved when a Qt application button was pushed, and wrote a small example. , You have 2 errors:
code :
import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QVBoxLayout, QWidget
from PyQt5.QtWebEngineWidgets import QWebEngineView


class MainWindow(QMainWindow):
    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent)
        self.form_widget = FormWidget(self)
        _widget = QWidget()
        _layout = QVBoxLayout(_widget)
        _layout.addWidget(self.form_widget)
        self.setCentralWidget(_widget)


class FormWidget(QWidget):
    def __init__(self, parent):
        super(FormWidget, self).__init__(parent)
        self.__controls()
        self.__layout()

    def __controls(self):
        html = open('test.html', 'r').read()
        self.browser = QWebEngineView()
        self.browser.setHtml(html)
        self.browser.loadFinished.connect(self.onLoadFinished)

    def onLoadFinished(self, ok):
        if ok:
            self.browser.page().runJavaScript("helloWorld(1, \"2\")", self.ready)

    def __layout(self):
        self.vbox = QVBoxLayout()
        self.hBox = QVBoxLayout()
        self.hBox.addWidget(self.browser)
        self.vbox.addLayout(self.hBox)
        self.setLayout(self.vbox)

    def ready(self, returnValue):
        print(returnValue)

def main():
    app = QApplication(sys.argv)
    win = MainWindow()
    win.show()
    return app.exec_()


if __name__ == '__main__':
    sys.exit(main())
...
class WebEnginePage(QWebEnginePage):
    def javaScriptConsoleMessage(self, level, message, lineNumber, sourceID):
        print("javaScriptConsoleMessage: ", level, message, lineNumber, sourceID)


class FormWidget(QWidget):
    ...
    def __controls(self):
        ...
        self.browser = QWebEngineView()
        self.browser.setPage(WebEnginePage(self.browser))
        ...
...
<script>
    function helloWorld(param1, param2) {
        console.log("Hello world")
        return "Hello world " + param1 + " " + param2;
    }
</script>
...
javaScriptConsoleMessage:  0 Hello world 12 data:text/html;charset=UTF-8,%3C%21DOCTYPE%20html%3E%0A%3Chtml%3E%0A%0A%3Chead%3E%0A%20%20%20%20%3Cmeta%20charset%3D%22UTF-8%22%3E%0A%3C%2Fhead%3E%0A%0A%3Cbody%3E%0A%0A%3Cscript%3E%0A%20%20%20%20function%20helloWorld%28param1%2C%20param2%29%20%7B%0A%20%20%20%20%09console.log%28%22Hello%20world%22%29%0A%20%20%20%20%20%20%20%20return%20%22Hello%20world%20%22%20%2B%20param1%20%2B%20%22%20%22%20%2B%20param2%3B%0A%20%20%20%20%7D%0A%3C%2Fscript%3E%0A%0A%3C%2Fbody%3E%0A%3C%2Fhtml%3E
Use anaconda in pycharm (Import libraries error, updating anaconda and virtual environment)

Use anaconda in pycharm (Import libraries error, updating anaconda and virtual environment)


By : Amardeep Kumar
Date : October 22 2020, 08:10 AM
Does that help The procedure you use to setup the interpreter is correct. The use of isolating projects is that you don't get in trouble with package dependencies. Some projects could require different versions of, for instance the sk-learn package. Isolating projects by using environments and installing seperate packages for every project prevents any issues with this. "Make available to projects" has nothing to do with isolation of packages inside that environment.
The problem here is that you probably did not tick the option 'Add to path' while installing Anaconda. PyCharm does not automatically activate your environments when you do not add Anaconda to path. Using PyCharm with an unactivated environment is unsupported, and can lead to import-errors like the ones you specify. So to solve your error, use anaconda prompt, activate your environment and launch PyCharm from there, or re-install anaconda/mini-conda with the option "add-to-path" checked. A detailed discussion of this problem can be found here.
PyQt5.QtWidgets module not found when pyqt is installed with Anaconda

PyQt5.QtWidgets module not found when pyqt is installed with Anaconda


By : user3088854
Date : March 29 2020, 07:55 AM
I hope this helps you . Turns out it was a path problem. I had installed Homebrew after Anaconda and /usr/local/bin was in front of $HOME/anaconda3/bin in $PATH, so Homebrew Python was being called instead of Anaconda Python.
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