from datetime import date

calculations = ['123.0°F is 51°C', '43.0°C is 109°F', '42.0°C is 108°F',
                '4123.0°F is 2273°C', '84.0°C is 183°F', '84.0°F is 29°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")

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