You can access most IP cameras using the method below.
import cv2
# insert the HTTP(S)/RSTP feed from the camera
url = "http://username:password@your_ip:your_port/tmpfs/auto.jpg"
# open the feed
cap = cv2.VideoCapture(url)
while True:
# read next frame
ret, frame = cap.read()
# show frame to user
cv2.imshow('frame', frame)
# if user presses q quit program
if cv2.waitKey(1) & 0xFF == ord("q"):
break
# close the connection and close all windows
cap.release()
cv2.destroyAllWindows()