from datetime import date

calculations = ['10.0 °F is -12 °C', '20.0 °F is -7 °C',
                '30.0 °F is -1 °C', '40.0 °F is 4 °C',
                '50.0 °F is 10 °C', '60.0 °F is 16 °C']

# **** Get current date for heading and filename ****
today = date.today()

# get day, month and year as individual strings
day = today.strftime("%d")
month = today.strftime("%m")
year = today.strftime("%Y")

file_name = f"temperatures_{year}_{month}_{day}"
write_to = f"{file_name}.txt"

with open(write_to, "w") as text_file:

    text_file.write("***** Temperature Calculations ******\n")
    text_file.write(f"Generated: {day}/{month}/{year}\n\n")
    text_file.write("Here is your calculation history (oldest to newest)...\n")

    # writet the item to file
    for item in calculations:
        text_file.write(item)
        text_file.write("\n")