A simple fastapi endpoint that allows users to translate text into the language of aliens, but with the added twist that the translations are based on the language of an extraterrestrial species. it also supports for input text in other languages by using a language detection `langdetect`, and supports for audio translation.

alien_translator.py

from fastapi import FastAPI
from langdetect import detect
from gtts import gTTS

app = FastAPI()

translations = {
    "Vortian": {
        "A": "Z",
        "B": "Y",
        "C": "X",
        "D": "W",
        "E": "V",
        "F": "U",
        "G": "T",
        "H": "S",
        "I": "R",
        "J": "Q",
        "K": "P",
        "L": "O",
        "M": "N",
        "N": "M",
        "O": "L",
        "P": "K",
        "Q": "J",
        "R": "I",
        "S": "H",
        "T": "G",
        "U": "F",
        "V": "E",
        "W": "D",
        "X": "C",
        "Y": "B",
        "Z": "A",
    },
    "Xenomorph": {
        "A": "C",
        "B": "F",
        "C": "E",
        "D": "H",
        "E": "G",
        "F": "B",
        "G": "A",
        "H": "D",
        "I": "K",
        "J": "N",
        "K": "M",
        "L": "P",
        "M": "O",
        "N": "J",
        "O": "I",
        "P": "L",
        "Q": "T",
        "R": "W",
        "S": "Z",
        "T": "Q",
        "U": "X",
        "V": "U",
        "W": "R",
        "X": "V",
        "Y": "B",
        "Z": "S",
    },
    "Klingon": {
        "A": "0",
        "B": "1",
        "C": "2",
        "D": "3",
        "E": "4",
        "F": "5",
        "G": "6",
        "H": "7",
        "I": "8",
        "J": "9",
        "K": "a",
        "L": "b",
        "M": "c",
        "N": "d",
        "O": "e",
        "P": "f",
        "Q": "g",
        "R": "h",
        "S": "i",
        "T": "j",
        "U": "k",
        "V": "l",
        "W": "m",
        "X": "n",
        "Y": "o",
        "Z": "p",
    },
}


@app.post("/translate")
async def translate(input_text: str, input_language: str):
    detected_language = detect(input_text)

    if detected_language == "en":
        if input_language == "Vortian":
            translation_dict = translations["Vortian"]
        elif input_language == "Xenomorph":
            translation_dict = translations["Xenomorph"]
        elif input_language == "Klingon":
            translation_dict = translations["Klingon"]
        else:
            return {"error": "Unsupported input language"}
    else:
        return {"error": "Unsupported input language"}

    translated_text = ""
    for c in input_text.lower():
        if c in translation_dict:
            translated_text += translation_dict[c]
        else:
            translated_text += c

    tts = gTTS(translated_text)
    tts.save("translation.mp3")

    return {"translated_text": translated_text, "audio_file": "translation.mp3"}