ploty.py

import numpy as np
import plotly.graph_objs as go


fig = go.Figure()
fig.add_scatter(x=np.random.rand(100), y=np.random.rand(100), mode='markers',
                marker={'size': 30, 'color': np.random.rand(100), 'opacity': 0.6, 
                        'colorscale': 'Viridis'});


def show_in_window(fig):
    import sys, os
    import plotly.offline
    from PyQt5.QtCore import QUrl
    from PyQt5.QtWebEngineWidgets import QWebEngineView
    from PyQt5.QtWidgets import QApplication
    
    plotly.offline.plot(fig, filename='name.html', auto_open=False)
    
    app = QApplication(sys.argv)
    web = QWebEngineView()
    file_path = os.path.abspath(os.path.join(os.path.dirname(__file__), "name.html"))
    web.load(QUrl.fromLocalFile(file_path))
    web.show()
    sys.exit(app.exec_())


show_in_window(fig)