[Tutor] a question about symbol

[linda.s]

When I test the following code,
I got something like (use 80 as argument):
80?F=27?C
Why '?' appear?

# code
import string, sys

# If no arguments were given, print a helpful message
if len(sys.argv)==1:
    print 'Usage: celsius temp1 temp2 ...'
    sys.exit(0)

# Loop over the arguments
for i in sys.argv[1:]:
    try:
        fahrenheit=float(string.atoi(i))
    except string.atoi_error:
print repr(i), "not a numeric value"
    else:
celsius=(fahrenheit-32)*5.0/9.0
print '%i\260F = %i\260C' % (int(fahrenheit), int(celsius+.5))