Python3, Random entries into a format string problem

Question

I am making a program that generates the phrase, "The enemy of my friend is my enemy!" actually, I want this phrase to print out a random permutation of (Friend/Enemy) in each place every time it is re-ran.

so far I got the code to print out the same word 3 times in each, but not a different word in each place.

I couldn't get python to access each string individually from a list. Any ideas?

Thanks!

`

import random

en = 'Enemy'
fr = 'Friend'
words = en, fr

for word in words:
    sentence = f"The {word} of my {word} is my {word}!"
    print(sentence)

`

Andrej Kesely · Accepted Answer · 2022-11-05 18:11:16Z

2

If you want to print random sentence each time a script is run, you can use random.choices to choose 3 words randomly and str.format to format the new string. For example:

import random

en = "Enemy"
fr = "Friend"
words = en, fr

sentence = "The {} of my {} is my {}!".format(*random.choices(words, k=3))
print(sentence)

Prints (randomly):

The Enemy of my Friend is my Friend!

answered Nov 5, 2022 at 18:11

Andrej Kesely

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2 Comments

Sam Mason Over a year ago

The use of * for iterable unpacking might not be very beginner friendly, hence my version

Andrej Kesely Over a year ago

@SamMason I agree, it's slightly advanced topic for beginner.

Sam Mason · Accepted Answer · 2022-11-05 21:16:11Z

1

I'd make more changes to the code as it looks like the code in the question is trying to use the wrong tools.

import random

words = ['Enemy', 'Friend']

# three independent draws from your words
w1 = random.choice(words)
w2 = random.choice(words)
w3 = random.choice(words)

# assemble together using an f-string
sentence = f"The {w1} of my {w2} is my {w3}!"
print(sentence)

Not sure if this will be easier to understand, but hopefully!

answered Nov 5, 2022 at 21:16

Sam Mason

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