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Python

Posted by web die
web die
714 Points

pop() with index

when you used pop with index at 01:32, you didn't used the [], can we do it in python calling index in parentheses? hope you understand

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,468 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,468 Points

The method pop operates like a function, in that, it's arguments are wrapped in parens (). 

items = ["a", 3, "b", 9]

# remove first item using del
del items[0]  # removes the "a", 

# remove first item using pop
item_removed = items.pop(0) # removes the 3

# item_removed now holds 3
web die
web die
714 Points

Thanks

web die
web die
714 Points

Can you pls explain me what is happening here:

sum  = 0
i = 0
for i in range(10):
    sum = sum + i
    print(sum)
Chris Freeman
Chris Freeman
Treehouse Moderator 68,468 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,468 Points 
# set sum to zero 
sum  = 0
# set i to zero
i = 0
# loop over the numbers 0, 1,... , 9
for i in range(10):
    # add the number to sum
    sum = sum + i
    # print partial sum
    print(sum)

# produces
0
1
3
6
10
15
21
28
36
45