l=[1,2]
l.append(3)
print(l)
l.append(l)
print(l)
l=l+[2,3,4,4]
print(l)
new_l=l[3]
print(new_l);
print(new_l[3]);
OUTPUT:
[1, 2, 3]
[1, 2, 3, […]]
[1, 2, 3, [1, 2, 3, […]], 2, 3, 4, 4]
[1, 2, 3, […]]
[1, 2, 3, […]]
I don;t understand this please explain
what is the meaning of […] ??
Hey @anandprakash1091971, here, [...] is just Python’s way of representing the fact that the list is embedded in itself.
Hope this helps.
explain this output
in my opinion it sholud be
[1, 2, 3, […], 2, 3, 4, 4]
also
this should print […] or [1,2,3,]
plz tell me in deep and explain elaborately
Ok let me explain you in detail :
When you do l.append(l) , then l points to [1,2,3,[…]] indicating that l contains itself right ?
Now when you do l=l+[2,3,4,4] , so the following operation takes place :
l = [1,2,3,[...]] + [2,3,4,4]
print(l)
So when you print this the output comes out to be [1,2,3,[1,2,3,[…]],2,3,4,4] right ?
So here you would observe that the […] has been replaced by the whole l which points to [1,2,3,[…]].
Have you ever tried printing […] ? If you would print l[3][3] , then you would see that […] is nothing but the whole list [1,2,3,[…]].
Now coming to the other question you asked :
new_l = l[3] means new_l is also [1,2,3,[…]]. Here also […] means the whole combined list. So if you print new_l[3] it would again give you [1,2,3,[…]]. This would happen recursively. You can try printing new_l[3][3][3][3]…you would always get [1,2,3,[…]].
I would suggest you should try printing things to get a more clear picture of what is […]_
[…] is basically the whole combined list i.e. [1,2,3,[…]]
Hope this helps.
Happy Learning 
awesome Explanation i understand it now
thankyou very much
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