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Python Python Basics (2015) Shopping List App Continue

Trevor Wood
Trevor Wood
17,828 Points
Posted by Trevor Wood
Trevor Wood
17,828 Points

I don't understand why this didn't work

So I finally got this code challenge after googling a bit. But I don't see why my original code didn't work.

# Original
def loopy(items):
    # Code goes here
    for item in items:
      if item.index("a") == 0:
        continue
      else:
        print(item)


# Passed code
def loopy(items):
    # Code goes here
    for item in items:
      if item.startswith("a"):
        continue
      else:
        print(item)

2 Answers

Kourosh Raeen
Kourosh Raeen
23,733 Points
Kourosh Raeen
Kourosh Raeen
23,733 Points

Because the index() method throws a "ValueError: substring not found" error if the item doesn't contain the letter a, whereas the startswith() method returns False.

James Gill
PLUS
James Gill
Courses Plus Student 34,936 Points
James Gill
James Gill
Courses Plus Student 34,936 Points

It's as @kourosh said: your failing method returns an error, but your passing method returns a boolean (True or False). The failing method can't "continue".