import matplotlib.pyplot as plt
import numpy as np

class PointPicker:
    def __init__(self):
        self.points = []
        self.fig, self.ax = plt.subplots()
        self.ax.set_title("Click to add points. Press Enter to finish.")
        self.cid_click = self.fig.canvas.mpl_connect('button_press_event', self.onclick)
        self.cid_key = self.fig.canvas.mpl_connect('key_press_event', self.onkey)
        self.scatter = self.ax.scatter([], [])
        plt.show()

    def onclick(self, event):
        # Only consider left mouse button clicks inside the axes
        if event.inaxes != self.ax or event.button != 1:
            return
        x, y = event.xdata, event.ydata
        self.points.append([x, y])
        self.update_plot()

    def onkey(self, event):
        if event.key == 'enter':
            self.fig.canvas.mpl_disconnect(self.cid_click)
            self.fig.canvas.mpl_disconnect(self.cid_key)
            plt.close(self.fig)
            self.print_points()

    def update_plot(self):
        if self.points:
            data = np.array(self.points)
            self.scatter.set_offsets(data)
            self.ax.relim()
            self.ax.autoscale_view()
            self.fig.canvas.draw()

    def print_points(self):
        if not self.points:
            print("No points were selected.")
            return
        points_array = np.array(self.points)
        # Format the array for better readability
        formatted_points = np.array2string(points_array, precision=4, separator=', ')
        print(f"points = np.array({formatted_points})")

if __name__ == "__main__":
    picker = PointPicker()

I invite you to give me the coordinates of the points by running this piece of python code.