Two tkinter Objects act differently when bound on the same event - python-3.x

Question

I am creating instances of two different objects (features_object and line_object) on a canvas. The idea is to connect several of the features by lines (). Later on when features are moved around the lines should follow.
At the moment my issue is that, when I apply the delete method on the lines I can delete them (Lines created between features by left mouse click. Line deleted by right mouse double click). However with the similar method of the feature class nothing happens! I cannot delete the features! The features seem invisible on the canvas! Is there any solution to that?
Thanks a lot!
from tkinter import Tk, Frame, Canvas, Text, END, TRUE, BOTH, CURRENT
click = 0
class line_object:
all_connections = []
def __init__(self):
self.connections_data = []
def create_line(self, master, start_elem, end_elem, tag_start, tag_end):
self.master = master
self.start_elem = start_elem
self.end_elem = end_elem
self.tag_start = tag_start
self.tag_end = tag_end
self.start_x = self.master.coords(self.start_elem)[0]
self.start_y = self.master.coords(self.start_elem)[1]
self.end_x = self.master.coords(self.end_elem)[0]
self.end_y = self.master.coords(self.end_elem)[1]
self.line_tag = (f'Connector_{self.start_elem}_{self.end_elem}', 'connection', 'drag')
self.master.delete(self.line_tag)
self.line_id = self.master.create_line(self.start_x, self.start_y, self.end_x, self.end_y, fill="red", width=6, tags=(self.line_tag, self.tag_start, self.tag_end))
self.master.tag_lower(self.line_id)
self.bind_events_lines()
def bind_events_lines(self):
self.master.bind('<Double Button-3>', self.deleteLine)
def deleteLine(self, event=None):
actual = self.master.find_withtag(CURRENT)
self.master.delete(actual)
class features_object():
def __init__(self):
self.features_data = []
def create_feature(self, master, feature_text, feature_xpos, feature_ypos, feature_color):
self.master = master
self.feature_text = feature_text
self.feature_xpos = feature_xpos
self.feature_ypos = feature_ypos
self.feature_color = feature_color
self.feature_frame = Frame(self.master, bg=self.feature_color, border=20)
self.feature_text = Text(self.feature_frame, font=("Helvetica", 12), relief='flat', width=20, height=3, selectbackground=self.feature_color, selectforeground="black", exportselection=TRUE)
self.feature_text.grid(row=0, column=0, padx=5, pady=5, sticky='w')
self.feature_text.config(wrap='word')
self.feature_text.insert(END, feature_text)
self.feature_tags = 'drag'
self.feature_id = self.master.create_window(self.feature_xpos, self.feature_ypos, window=self.feature_frame, tags=self.feature_tags)
self.master.itemconfigure(self.feature_id, tags=[self.feature_id])
self.bind_events_features()
def bind_events_features(self):
self.feature_frame.bind('<Button-1>', self.draw_line_with_bind)
self.feature_frame.bind('<Double Button-3>', self.deleteFeature)
def deleteFeature(self, event):
actual = self.master.find_withtag(CURRENT)
self.master.delete(actual)
def draw_line_with_bind(self, event):
global click, start_x, start_y, end_x, end_y, elem_start, tag_start
if click == 0:
elem_start = self.feature_id
tag_start = f'{elem_start}'
click = 1
elif click == 1:
elem_end = self.feature_id
tag_end = f'{elem_end}'
lin = line_object()
self.connection = lin.create_line(draw_canvas, elem_start, elem_end, tag_start, tag_end)
click = 0
window = Tk()
window.geometry("1000x800")
frame_start = Frame(window)
frame_start.pack(expand=TRUE, fill=BOTH)
draw_canvas = Canvas(frame_start)
draw_canvas.pack(expand=TRUE, fill=BOTH)
features_object().create_feature(draw_canvas, 'feature A', 100, 100, 'red')
features_object().create_feature(draw_canvas, 'feature B', 300, 300, 'green')
features_object().create_feature(draw_canvas, 'feature C', 500, 500, 'magenta')
def read_id(event):
currently_clicked = draw_canvas.find_withtag(CURRENT)
print(f'Currently clicked instance {currently_clicked}')
draw_canvas.bind('<Button-2>', read_id)
if __name__ == '__main__':
window.mainloop()