In one program, I noticed that author add two lines
sys.path.append("../../../")
sys.path.append("..")
Is the second path.add redundant?
".." moves you one level up in the directory tree from where you are. So multiple .. moving you further up that many level.
Sys.path is a list of directories where the Python interpreter searches for modules. you may find through print(sys.path). Please note it's a list.
The sys.path.append() method is used to append the path that we want to the existing list.
So second one is not redundant, you are the who added it...