如何用双引号打印列表中的元素

Question

I have a for loop that prints out each line in the text as a element and appends it to the list. It is putting it with single quotes, however I would like it to placed in the element with a double quote. Not sure what to use and where to start.

My file contains

google.com 
yahoo.com
facebook.com 

The script I have is

with open('file') as target:
    addresses=[]
    for i in target:
        addresses.append(i)
print(addresses)

The result I would like is

["google.com", "yahoo.com", "facebook.com"]

Any help is appreciated

Answer 1

You can use json.dumps for this, and use rstrip to remove trailing spaces and linebreaks.

import json

with open('test.txt') as target:
    addresses=[]
    for i in target:
        addresses.append(i.rstrip())

print(json.dumps(addresses))

Output:

["google.com", "yahoo.com", "facebook.com"]

Answer 2

As it was mentioned before, Python only prints single quotes, if the type of given element is string, as in your case. If you need to have explicitly double quotes around your strings, then use f-strings:

with open('file') as target:
    addresses=[]
    for i in target:
        addresses.append(f"\"{i.rstrip()}\"")
print(addresses)

It will give you

['"google.com"', '"yahoo.com"', '"facebook.com"']

which is probably what you're looking for.