[Tutor] Beginner problem: name 'convertToFahrenheit' is not defined

[Emad Nawfal (عماد نوفل)]

On Thu, Aug 14, 2008 at 7:08 PM, Joseph Bae <joeturf at gmail.com> wrote:

> Hi all,
>
> I'm new to Python (and programming in general) and need some help!
>
> Here is my code so far for a temperature conversion program (converts
> between Fahrenheit and Celsius):
>
>
>
> temp = input("Enter A Number : ")
> convertTo = raw_input("Convert To (F)ahrenheit or (C)elsius? : ")
>
> if convertTo == "F":
>     convertedTemp = convertToFahrenheit(temp)
>     print "%d Celsius = %d Fahrenheit" % (temp, convertedTemp)
> else:
>     convertedTemp = convertToCelsius(temp)
>     print "%d Fahrenheit = %d Celsius" % (temp, convertedTemp)
>
> def convertToFahrenheit(t):
>     tF = (9.0/5.0) * (t + 32)
>     return tF
>
> def convertToCelsius(t):
>     tC = (9.0/5.0) * (t - 32)
>     return tC
>
>
>
> It worked fine without having extra functions but once I put
> convertToFahrenheit and convertToCelsius in (just for practice really), this
> happened:
>
> Enter A Number : 50
> Convert to (F)ahrenheit or (C)elsius? : F
> Traceback (most recent call last):
>      File "TemperatureConverter.py", line 5, in <module>
>           convertedTemp = convertToFahrenheit(temp)
> NameError: name 'convertToFahrenheit' is not defined
>
> This is most likely a very simple error, but can someone please clarify for
> me why it's behaving this way?
>

You just need to define the functions before you use them
Arranging the order od your program makes it work. Like this
def convertToFahrenheit(t):
    tF = (9.0/5.0) * (t + 32)
    return tF

def convertToCelsius(t):
    tC = (9.0/5.0) * (t - 32)
    return tC
temp = input("Enter A Number : ")
convertTo = raw_input("Convert To (F)ahrenheit or (C)elsius? : ")

if convertTo == "F":
    convertedTemp = convertToFahrenheit(temp)
    print "%d Celsius = %d Fahrenheit" % (temp, convertedTemp)
else:
    convertedTemp = convertToCelsius(temp)
    print "%d Fahrenheit = %d Celsius" % (temp, convertedTemp)



>
>
> Thanks!
>
> Joe
>
> _______________________________________________
> Tutor maillist  -  Tutor at python.org
> http://mail.python.org/mailman/listinfo/tutor
>
>


-- 
لا أعرف مظلوما تواطأ الناس علي هضمه ولا زهدوا في إنصافه كالحقيقة.....محمد
الغزالي
"No victim has ever been more repressed and alienated than the truth"

Emad Soliman Nawfal
Indiana University, Bloomington
http://emnawfal.googlepages.com
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