How to join strings systematically in pairs of two in Python-CodePudding

I want to make a program that takes strings from a file - file.txt

apple
banana
horse
love
purple

and then joins the first word with every single other one and so on. The result should look like this:

applebanana
applehorse
applelove
applepurple
bananaapple
bananahorse
bananalove
bananapurple
horseapple
etc.

I get that I should probably use the join function, but I don't know how exactly? (If that makes sense, I am super sorry)

I tried also using zip, but couldn't make it word, so I leave it up to the professionals! <3 (I also use python 3) If u need more info I will try to respond as fast as I can! Thank you all!

CodePudding user response：

#say you have a list of words 
l = ['apple', 'banana', 'horse', 'love', 'purple']

for i in range(len(l)):
    for j in range(len(l)):
        if i != j:
            print(l[i] l[j])

CodePudding user response：

This is exactly what itertools.product() does:

from itertools import product

with open(<your_file>) as f:
    lst = [line.strip() for line in f]

for i, j in product(lst, repeat=2):
    print(i   j)

output:

appleapple
applebanana
applehorse
applelove
applepurple
bananaapple
bananabanana
...

CodePudding user response：

words = []
with open(file_name, "r") as fp:
    words = [line.replace('\n', '') for line in fp]
for wi in words:
    for wj in words:
        print(f"{wi}{wj}")