Python Project: Save User Sentences to a File

Level: Beginner

Project Overview 💡

In this project, you'll write a Python script that asks the user to enter three sentences and saves them into a text file. Between each sentence (except the last), a dashed line will be written to visually separate them.

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Challenge Yourself! 🚀

Before checking the solution, try building a script that collects input from a user and writes it to a file in a structured format.

Task:

Write a Python program that:

• Prompts the user to enter three different sentences

• Writes each sentence to a file, separated by a dashed line (-----------) except after the last one

• Saves the content to a file named user_sentences.txt

Expected Output:
The program prompts the user three times to enter three sentences.

Once the user has entered the three sentences, the program produces a text file with the three sentences inside and dashes between them.

Give it a shot! Scroll down when you're ready for the step-by-step guide.

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Spoiler Alert!

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Step-by-Step Guide

Step 1️⃣: Define the Output File

Choose a name for your text file.

filename = "user_sentences.txt"

Step 2️⃣: Open the File in Write Mode

Use a with statement to open the file so it closes automatically after writing.

with open(filename, "w") as file:

Step 3️⃣: Loop to Get User Input

Ask the user for a sentence three times, writing each one to the file.

    for i in range(3):
        sentence = input(f"Enter sentence {i+1}: ")
        file.write(sentence + "\n")

Step 4️⃣: Add Dashed Lines Between Sentences

Insert separator lines between sentences—but not after the last one.

        if i < 2:
            file.write("-----------\n")

Step 5️⃣: Confirmation Message

Notify the user that their input was saved.

print(f"Sentences have been saved to {filename}.")

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Complete Code 🧨

# Define the file name
filename = "user_sentences.txt"

# Open the file in write mode
with open(filename, "w") as file:
    # Loop three times to get sentences from the user
    for i in range(3):
        # Prompt the user to enter a sentence
        sentence = input(f"Enter sentence {i+1}: ")
        # Write the sentence to the file
        file.write(sentence + "\n")
        # If it's not the last sentence, add dash lines
        if i < 2:
            file.write("-----------\n")

print(f"Sentences have been saved to {filename}.")

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Alternative Solution

Here’s a version that collects all input first and writes to the file afterward:

filename = "user_sentences.txt"
sentences = [input(f"Enter sentence {i+1}: ") for i in range(3)]

with open(filename, "w") as file:
    for i, sentence in enumerate(sentences):
        file.write(sentence + "\n")
        if i < 2:
            file.write("-----------\n")

print(f"Saved 3 sentences to {filename}.")

Comparison

• The original version writes to the file as the user types.

• The alternative version collects all input first, which can make the logic easier to manage for more complex input tasks.

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