Python: 1) How to reference two string variables and insert a list element in between? 2) How can I append the string constructed to a list?

Question

Here is a .txt file (semi colon signifies start of file):

MiddlePhrase.txt:
coke and cheeseburgers
bread and wine
beer and tacos

Here is the code I have now:

middlePhrases = open('MiddlePhrase.txt', 'r')

firstPhrase = 'I love to drink and eat '
secondPhrase = ' when I am at the beach!'

for i in middlePhrases:
    print(beginningPhrase,{},endPhrase)

The goal is to write the first line of 'MiddlePhrase.txt' to a new .txt file named 'NewPhraseFile.txt', then append the following two lines in 'MiddlePhrase.txt' to the 'NewPhraseFile.txt'

This is the desired output (a new .txt file being written with content):

NewPhraseFile.txt:
I love to drink and eat coke and cheeseburgers when I am at the beach!
I love to drink and eat bread and wine when I am at the beach!
I love to drink and eat beer and tacos when I am at the beach!

Please edit the post with your attempt at solving the question. — Nguyen Thai Binh
– Nguyen Thai Binh, Commented Dec 19, 2021 at 6:48
Have you tried something? Please add your code snippet and tell the problem with your code. — Ali Irani
– Ali Irani, Commented Dec 19, 2021 at 6:49

mama · Accepted Answer · 2021-12-19 07:22:19Z

2

A short version

open('new.txt', 'a+').writelines(
    f'I love to drink and eat {x.strip()} when I am at the beach!\n'
    for x in open('mid.txt'))

answered Dec 19, 2021 at 7:22

mama

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1 Comment

bbsmfb Over a year ago

Woah mama! Nice code! fire emoji

Harsh Kasodariya · Accepted Answer · 2021-12-19 09:04:00Z

1

I hope this works for you...

firstPhrase = 'I love to drink and eat '
secondPhrase = ' when I am at the beach!'
with open('MiddlePhrase.txt', 'r') as middlePhrases, open('NewPhraseFile.txt', 'a') as newPhrases:
    for phrase in middlePhrases:
        middlePhrase = phrase.strip()
        newPhrases.write(firstPhrase + middlePhrase + secondPhrase + '\n')

Output in NewPhraseFile.txt:

I love to drink and eat coke and cheeseburger when I am at the beach!
I love to drink and eat bread and wine when I am at the beach!
I love to drink and eat beer and tacos when I am at the beach!

edited Dec 19, 2021 at 9:04

Harsh Kasodariya

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answered Dec 19, 2021 at 6:55

Kedar U Shet

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2 Comments

bbsmfb Over a year ago

Awesome code! Thank you. Happy holidays!

Harsh Kasodariya Over a year ago

you don't need to close the file new as with will automatically handle that for you. you need to close fp though, as you are not using with there.

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