sort() and list has not attribute

Question

I trying to get into programming and have a simple question:

If I have

def break_words(stuff):
    words = stuff.split(' ')
    return words

def sort_words(words):
    ##Sorts the words."""
    words = break_words(words)
    return sorted(words)

def print_first_word(sentence):
    words = break_words(sentence)
    words = sorted(words)
    return words.pop(0)


sentence = "Tequila Mariachi Sangria"
print break_words(sentence)
print sort_words(sentence)
print print_first_word(sentence)

When I run it, my code is fine, while if I write

####################Test################

def break_words(stuff):
    words = stuff.split(' ')
    return words

def sort_words(words):
    ##Sorts the words."""
    words = break_words(words)
    return sorted(words)

def print_first_word(sentence):
    words = break_words(sentence)
    words = sort_words(words)
    return words.pop(0)


sentence = "Tequila Mariachi Sangria"
print break_words(sentence)
print sort_words(sentence)
print print_first_word(sentence)

I will get

AttributeError: "list" object has no attribute "split"

both functions break_words and sort_words create list objects, so why do I get the error in my second case?

Yu Hao · Accepted Answer · 2015-10-28 06:12:34Z

2

print_first_word(sentence) calls

words = break_words(sentence)

Here, words is a list now, then it's passed to sort_words(words), and next break_words(words), in which calls

words = stuff.split(' ')

where stuff is a list, causing the error.

answered Oct 28, 2015 at 6:12

Yu Hao

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1 Comment

Filippo Oba Oba Tano Over a year ago

Thanks! this was very helpful

Nguyen Sy Thanh Son · Accepted Answer · 2015-10-28 06:12:32Z

0

I think that the second source code should be:

####################Test################

def break_words(stuff):
    words = stuff.split(' ')
    return words

def sort_words(words):
    ##Sorts the words."""
    words = break_words(words)
    return sorted(words)

def print_first_word(sentence):
    words = sort_words(sentence)
    return words.pop(0)


sentence = "Tequila Mariachi Sangria"
print break_words(sentence)
print sort_words(sentence)
print print_first_word(sentence)

I changed words = sort_words(words) to words = sort_words(sentence)

answered Oct 28, 2015 at 6:12

Nguyen Sy Thanh Son

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