Question

python Write a program that will take a file named Celsius.dat that contains a list of temperatures in Celsius (one per line), and will create a file Fahrenheit.dat that contains the same temperatures (one per line, in the same order) in Fahrenheit

Answer 1

with open('celcius.dat', 'r') as fIn, open('fahrenheit.dat', 'w') as fOut:

   for line in fIn:

       fahrenheit = 9.0 / 5.0 * float(line) + 32

       fOut.write("%.1f\n" % fahrenheit)

You can control the number of decimals in the formatting clause in the write statement.