Question

Write a short program that uses a for loop to write the numbers 1 through 10 to a file.

Short answer

Question: Write a short Python program to write the numbers 1 through 10 to a file using a for loop. Answer: The following program will write the numbers 1 through 10 to a file named "numbers.txt": ```python file = open("numbers.txt", "w") for i in range(1, 11): file.write(str(i) + "\n") file.close() ```

Step-by-step solution

Open the file

To write the numbers to a file, we first need to open it. Let's create a file named 'numbers.txt'. To open it in write mode, use the following command: ```python file = open("numbers.txt", "w") ```

Use a for loop to write the numbers

Now that we have our file open, we'll use a for loop to iterate through the numbers 1 through 10 and write them to the file. In Python, the `range` function can be used to generate a range of numbers, and the for loop can be used to loop through them. Here's the code that writes the numbers to the file using a for loop: ```python for i in range(1, 11): file.write(str(i) + "\n") ``` This code uses `range(1, 11)` to generate the numbers 1 through 10. The for loop will then iterate through these numbers, convert them to string using `str(i)`, and write them to the file. The `"\n"` is used to add a new line after each number.

Close the file

After writing all the numbers to the file, we need to close it to make sure the data is saved properly. Closing the file can be done using the following command: ```python file.close() ```

Full Program

Here's the full program combining all the steps: ```python file = open("numbers.txt", "w") for i in range(1, 11): file.write(str(i) + "\n") file.close() ``` Run this program to write the numbers 1 through 10 to a file called "numbers.txt".