Using Google Translator api to convert text in python.

Step 1: Sign Up for Google Cloud Translation API

1. Go to Google Cloud Console.
2. Create a new project or select an existing project.
3. Enable the “Cloud Translation API” for your project.
4. Create credentials: Choose “Service Account Key,” select “JSON” format, and download the credentials JSON file.

Step 2: Install Required Libraries

First, make sure you have Streamlit and the googletrans library installed. You can install them using the following commands:

pip install streamlit googletrans==4.0.0-rc1

Step 3: Create the Translation App

Create a Python script named translation_app.py and follow the steps below:

import streamlit as st
from googletrans import Translator

def translate_text(text, source_lang, target_lang):
    translator = Translator()
    translated_text = translator.translate(text, src=source_lang, dest=target_lang)
    return translated_text.text

def main():
    st.title("Multilingual Text Translation App")
 # Load Google API credentials

    credentials_path = "YOUR_GOOGLE_CREDENTIALS_JSON_FILE.json"

    os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = credentials_path

    st.sidebar.header("Settings")
    source_lang = st.sidebar.selectbox("Select Source Language", ("en", "es", "fr", "de", "ja"))
    target_lang = st.sidebar.selectbox("Select Target Language", ("en", "es", "fr", "de", "ja"))

    text = st.text_area("Enter Text to Translate")

    if st.button("Translate"):
        if text:
            translated_text = translate_text(text, source_lang, target_lang)
            st.write("Translated Text:")
            st.write(translated_text)
        else:
            st.write("Please enter text to translate.")

if __name__ == "__main__":
    main()

Explanation:

1. Import the required libraries: streamlit for creating the app interface and googletrans for translation.
2. Define the translate_text function to translate the input text from the source language to the target language using the googletrans library.
3. Create the main function for the Streamlit app:

• Use st.title to set the app title.
• Create a sidebar with language selection using st.sidebar.
• Get the source and target languages from the sidebar using st.sidebar.selectbox.
• Allow the user to enter text using st.text_area.
• When the “Translate” button is clicked, call the translate_text function and display the translated text using st.write.

Step 4: Run the Translation App

1. Save the translation_app.py script.
2. Open a terminal and navigate to the script’s directory.
3. Run the app using the command:

streamlit run translation_app.py

A web browser window will open with the app. Use the sidebar to select source and target languages, enter text, and click “Translate” to see the translation.