Get multi-line input

[dt-woods]

Here is a method for building a prompt for a multi-line string input from the user:

def get_multiline_input(prompt, end_marker="EOF"):
    """
    Prompts the user for multi-line input, ending input when a specific marker 
    is entered.

    Parameters
    ----------
    prompt : (str) 
        The prompt to display to the user.
    end_marker : str, optional 
        The marker that indicates the end of user input.
        Defaults to 'EOF', which stands for end of file (or end of standard 
        input feed).

    Returns
    -------
    str : The user-entered text.
    """
    print(prompt)
    print(f"(Type '{end_marker}' on a new line to finish)")
    lines = []
    while True:
        line = input()
        if line.strip() == end_marker:
            break
        lines.append(line)

    print("DEBUG: lines = ",lines)

    return "\n".join(lines)