Trying to get unique words from a set of strings

[garam0]

when I execute the following code I get ['red', 'pink', 'red', 'white', 'blue']. I cannot understand why there are 2 'red' words. Can someone help me with this?

string ='red,red,white,white,pink,blue,red,white,blue'
wordlist = string.split(',')
for word in wordlist:
if wordlist.count(word) > 1:
wordlist.remove(word)
print(wordlist)

thank you

---

when I execute the following code I get ['red', 'pink', 'red', 'white', 'blue']. I cannot understand why there are 2 'red' words. Can someone help me with this?

string ='red,red,white,white,pink,blue,red,white,blue'
wordlist = string.split(',')
for word in wordlist:
if wordlist.count(word) > 1:
wordlist.remove(word)
print(wordlist)

thank you

[python]string ='red,red,white,white,pink,blue,white,white,blue,blue,white'
wordlist = string.split(',')
print(wordlist)
i = 0
for word in wordlist:
    if wordlist.count(word) > 1:
        wordlist.remove(word)
print(wordlist)

[/python]

[bowlofred]

You are attempting to iterate through the list and delete elements from it at the same time. This confuses the iterator. You could iterate over a copy of the list, or delete them through other methods.

string ='red,red,white,white,pink,blue,white,white,blue,blue,white'
wordlist = string.split(',')
print(wordlist)
i = 0
for word in list(wordlist):   # list() makes a new list object
    if wordlist.count(word) > 1:
        wordlist.remove(word)
print(wordlist)

[deanhystad]

You should never remove items from the thing you are iterating. Instead build a new list that has the desired characteristics.

string ='red,red,white,white,pink,blue,white,white,blue,blue,white'
wordlist = string.split(',')
print(wordlist)

# Make a list only containing unique words
uniquewords = [word for word in wordlist if wordlist.count(word) == 1]
print('Unique colors', uniquewords)

# Make a list where each word only occurs once
colors = set(wordlist)
print('Colors', colors)

[menator01]

Solution I came up with:

string ='red,red,white,white,pink,blue,white,white,blue,blue,white'
wordlist = string.split(',')
# print(wordlist)

for word in wordlist:
    while wordlist.count(word) > 1:
        wordlist.remove(word)
print(f'{wordlist}')

Output:
['red', 'pink', 'blue', 'white']

[ndc85430]

Do you actually care about the order? If not, just use a set instead of a list.

[garam0]

thank you all for your help!