Создание многоугольников и отдельное их передвижение мышкой

from tkinter import*
 
root = Tk()
 
class GUI(Canvas):
    '''inherits Canvas class (all Canvas methodes, attributes will be accessible)
       You can add your customized methods here.
    '''
    def __init__(self,master,*args,**kwargs):
        Canvas.__init__(self, master=master, *args, **kwargs)
    
 
polygon = GUI(root)
polygon.create_polygon([150,75,225,0,300,75,225,150],     outline='gray', 
            fill='gray', width=2)
 
polygon.pack()
root.mainloop()

import tkinter as tk
 
root = tk.Tk()
 
canvas = tk.Canvas(root)
canvas.pack()
 
shape_id = canvas.create_oval(0, 0, 100, 100)
 
 
def move_oval(event):
    canvas.coords(shape_id, event.x - 50, event.y -
                  50, event.x + 50, event.y + 50)
 
 
canvas.bind('<1>', move_oval)
 
root.mainloop()

# -*- coding: utf-8 -*-
from PyQt5 import QtCore, QtWidgets, QtGui
import sys
 
app = QtWidgets.QApplication(sys.argv)
window = QtWidgets.QWidget()
window.setWindowTitle("Класс QGraphicsItemGroup")
window.resize(600, 400)
 
scene = QtWidgets.QGraphicsScene(0.0, 0.0, 500.0, 335.0)
scene.setBackgroundBrush(QtCore.Qt.white)
 
line1 = scene.addLine(50.0, 50.0, 450.0, 50.0, 
                     pen=QtGui.QPen(QtCore.Qt.red, 3))
line1.setFlag(QtWidgets.QGraphicsItem.ItemIsMovable)
line1.setFlag(QtWidgets.QGraphicsItem.ItemIsSelectable)
line1.setFlag(QtWidgets.QGraphicsItem.ItemIsFocusable)
 
line2 = scene.addLine(QtCore.QLineF(50.0, 100.0, 450.0, 100.0), 
                      pen=QtGui.QPen(QtCore.Qt.blue, 3))
line2.setFlag(QtWidgets.QGraphicsItem.ItemIsMovable)
line2.setFlag(QtWidgets.QGraphicsItem.ItemIsSelectable)
line2.setFlag(QtWidgets.QGraphicsItem.ItemIsFocusable)
 
group = QtWidgets.QGraphicsItemGroup()
group.addToGroup(line1)
group.addToGroup(line2)
group.setFlag(QtWidgets.QGraphicsItem.ItemIsMovable)
group.setFlag(QtWidgets.QGraphicsItem.ItemIsSelectable)
scene.addItem(group)
 
rect = scene.addRect(QtCore.QRectF(0.0, 0.0, 400.0, 100.0), 
                     pen=QtGui.QPen(QtCore.Qt.blue, 3),
                     brush=QtGui.QBrush(QtCore.Qt.green))
rect.setPos(QtCore.QPointF(50.0, 150.0))
rect.setFlag(QtWidgets.QGraphicsItem.ItemIsMovable)
rect.setFlag(QtWidgets.QGraphicsItem.ItemIsSelectable)
rect.setFlag(QtWidgets.QGraphicsItem.ItemIsFocusable)
 
view = QtWidgets.QGraphicsView(scene)
 
box = QtWidgets.QVBoxLayout()
box.addWidget(view)
window.setLayout(box)
 
window.show()
sys.exit(app.exec_())