Digit_sum


#1

This is my code

https://www.codecademy.com/courses/python-intermediate-en-rCQKw/0/4?curriculum_id=4f89dab3d788890003000096

Can some one tell me why cant I use this logic?

The error shown is:

File "python", line 3
for n>0:
^
SyntaxError: invalid syntax

Why is it an invalid syntax?


#2

Please post the code manually. The link takes us to the course, showing us the code that we wrote.
Refer to this for posting code:


#3

s=0
def digit_sum(n):
    for n>0:
        d=n%10
        s=s+d
        n=n/10
    return s
digit_sum(124)

#4

while and for loops are similar, but not the same, especially when it comes to syntax.
while loops:

while <condition>:
    # Do something

for loops:

for <iterator> in <iterable>:
    # Do something

while loops are essentially if-s which keep repeating, i.e., they check for a <condition>, and while that is True, they keep # Doing something
for loop go over an 'iterator' (lists, dictionaries, tuples, etc.).

For example, the following two loops are the same, but syntactically different:
while loop:

i = 0
while i <= 5:
    print i
    i += 1

for loop

for i in range(6):  # Equivalent to for i in range(0, 6):
    print i

Output for both:

1
2
3
4
5

For more info, read this:


#5

Thnx a lot!!!! it worked


#6

I do not know how to do for this one. If someone can give me any comments on my code and how to avoid the "list1" presence, it will be very appreciated :slight_smile:

list1 = [213]

def digit_sum(n):
sum_list = 0
list1 = [213]

for n in range(len(list1)):
    return str(n)
    for n in list1:
        sum_list = sum_list + int(n)
        return sum_list
        
return digit_sum

#7

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