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Juan de Elena O'Shea
4,757 PointsCan't make script run completely unless I complete the if/else statement
Hello all!
Great tutorials by the way, keep up the good work!
Got a question that I can't sort out on my own:
If I copy Ken's script exactly, when executing it, I get the prompts for the items and the can input 'DONE' and get the "The items on your list are:"... but nothing else.
BUT:
If I complete the if statment with an else statment... the whole thing runs like Ken's (properly :)). And Ken's does not include any else statment whatsoever!
Can anybody explain that?
Many thanks!
4 Answers
Anthony Liu
11,374 Pointsshopping_list = list()
print("What should we pick up at the store?")
print("Enter 'DONE' to stop adding items.")
while True:
new_item = input ("> ")
if new_item == 'DONE':
break
shopping_list.append(new_item)
print("Added! List has {} items.".format(len(shopping_list)))
continue
print("Here's your list:")
for item in shopping_list:
print(item)
This is my code for the shopping_list.py
I would guess the reason you needed to add else is because you had an indentation was off.
to write your code in a specific programming language you can
Wrap your code with 3 backticks (```) on the line before and after. If you specify the language after the first set of backticks, that'll help us with syntax highlighting.
```python
my_name = "Anthony"
```
Anthony Liu
11,374 PointsMaybe you made a mistake somewhere.
It would be helpful if you were to show your code
Juan de Elena O'Shea
4,757 PointsHi Anthony!
Many thanks for taking your time to answer this.
This is the code I had typed (I can't show the indentations, but they are there!):
shopping_list = list()
print("What should we pick up at the store?")
print("Enter 'DONE' to stop adding items")
while True: new_item = input("> ")
if new_item == 'DONE': break
else:
shopping_list.append(new_item)
print("Added! List has {} items.".format(len(shopping_list)))
continue
print("Here's your list: ")
for item in shopping_list: print(item)
The funny thing is that I believe Kenneth's did not include the else statement. I think I have it just the same otherwise.
And yes, this one works for my case, so maybe I am overthinking things :)
Cheers!
Juan de Elena O'Shea
4,757 PointsHello Anthony!
This is the code I wrote:
shopping_list = list()
print("What should we pick up at the store?")
print("Enter 'DONE' to stop adding items")
while True:
new_item = input("> ")
if new_item == 'DONE':
break
else:
shopping_list.append(new_item)
print("Added! List has {} items.".format(len(shopping_list)))
continue
print("Here's your list: ")
for item in shopping_list:
print(item)
I tried using yours and it indeed worked perfectly. No idea what went wrong. Indentation mistakes do not always throw an error?
Nevertheless, going forward, I'll try to use your 4 space indentation instead of the default 2, it looks much clearer (it also seems to be the default on Eclipse, so I guess it is what programmers use! :))
And many thanks for the tip on posting code on the forum. I'll sure be needing that quite often.
Cheers!