CODEWITHSUNDEEP
pythonlist
4Looped
4Looped

Reputation: 57

How to strip quotation marks from beginning and end of list

My list is not functioning properly because it is created as ["'carrots, 'tomatoes', 'lettuce'"] rather than ['carrots, 'tomatoes', 'lettuce']

I have a text file with 'carrots, 'tomatoes', 'lettuce' written on one line, and this is how I am writing it into my list:

veggie_list =[]
x = open('veggies.txt','r')
for item in x:
    veggie_list.append(item)

Upvotes: 2

Views: 135

Answers (4)

Pravin Garodi
Pravin Garodi

Reputation: 196

You can convert the list into the string and replace " with space then use eval it will return you list

veggie_list =[]
x = open('veggies.txt','r')
for item in x:
    veggie_list.append(item)
veggie_list = eval(str(veggie_list).replace('"',''))

Upvotes: 1

abhiarora
abhiarora

Reputation: 10430

Try this (Assuming you have multiple lines in your text file):

veggie_list = []
with open('veg.txt','r') as x:
    for item in x:
        veggie_list.extend(item.replace("'", "").split(','))

print(veggie_list)

Outputs:

['carrots', ' tomatoes', ' lettuce']

If you are only interested in the first line of your text file:

veggie_list = []
with open('veg.txt','r') as x:
    veggie_list = x.read().replace("'","").split(',')

print(veggie_list)

One Liner in Python using list comprehension:

with open('veg.txt','r') as x:
    print([j for i in x for j in i.replace("'","").split(',')])

EXPLANATION (For the first code):

You need to first remove the single quote marks from the line you have read ("'carrots', 'tomatoes', 'lettuce'") from the file. You can use replace() method of str object. This method returns a copy of modified string and it doesn't change the original string.

After that, you should be left with str "carrots, tomatoes, lettuce". Now, I have used split() method to divide the whole string into individual strings using "," as delimiter.

This method returns a list ['carrots', ' tomatoes', ' lettuce'].

Upvotes: 1

Shashwath Thiyagarajan
Shashwath Thiyagarajan

Reputation: 9

I have an idea, but it depends and the way that your text file is written:

veggies = []
veggie_list = []
x = open('veggies.txt','r')
for item in x:
    veggie.append(item)
for i in veggies:
    veggie_list.append(i)

This is probably that case. Your outer parentheses might signal that ["'carrots, 'tomatoes', 'lettuce'"] is probably just one item inside the list. If you iterate it twice, it might work. Hope it helps

Upvotes: 0

Hygrasiel
Hygrasiel

Reputation: 45

You inserting the String "'carrots, 'tomatoes', 'lettuce'". What I think you want to do is:

text = x.read()
text = text.replace("'","")
enter code here
veggie_list = text.split(",")

Upvotes: 1

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