Tinkering with if/ if.. else statements and running into an error

Question

I'm just trying to create a slightly more complex temperature conversion program than I had as a homework assignment for practice with some of the concepts we are using in class at the moment, and I'mm running into an error I'm unfamiliar with. Unfortunately the searches I've run brought up various examples of if/ if... else statements but in much more complex circumstances and I was not able to find the answer to this particular issue. I'm new to Python but have some experience with basic to intermediate Javascript, so some things are somewhat similar to what I've seen. The error does not occur when option 1 is chosen, entered, and the conversion is executed. It only happens when option 2 is chosen and then conversion is supposed to take place. My code/output are as follows:

choice = int(input('Choose your conversion method. Press 1 for Celsius to Farenheit. Press 2 for Farenheit to Celsius.'))
if choice == 1:
celsTemp = float(input('Please input degrees in Celsius for conversion'))
farenTemp = (1.8 * celsTemp) + 32
print(str(celsTemp) + ' degrees Celsius is equal to: ' + str(farenTemp) + ' degrees Farenheit')
if choice == 2:
farenTemp = float(input('Please input degrees in Farenheit for conversion'))
celsiusTemp = (farenTemp - 32)(5) / 9
print(str(farenTemp) + ' degrees Farenheit is equal to: ' + str(celsiusTemp) + ' degrees Celsius')

the error I recieve is as I believe during the conversion step. This is the output:

Choose your conversion method.
Press 1 for Celsius to Farenheit.
Press 2 for Farenheit to Celsius.2
Please input degrees in Farenheit for conversion86
Traceback (most recent call last):
File "C:\Users\Jason\Desktop\Python files\test for temp program.py", line 8, in
celsiusTemp = (farenTemp - 32)(5) / 9
TypeError: 'float' object is not callable

Concatenation is not multiplication in Python. `(farenTemp - 32)(5)` tries to use `(farenTemp - 32)` as a function. — user2357112, Feb 15 '17 at 00:54

score 2 · Accepted Answer · answered Feb 15 '17 at 00:55

2

Multiplication in Python does not work by parentheses.

Replace

celsiusTemp = (farenTemp - 32)(5) / 9

With

celsiusTemp = (farenTemp - 32)*5 / 9

answered Feb 15 '17 at 00:55

Dmitry Pleshkov

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Thank you, I see what you're both saying, I didn't realize that was another method for concatenation, I tjhought i was specifying order of operations. Thanks again. – JWK3986 Feb 15 '17 at 00:58
@JWK3986 It's not actually acting as "concatenation" but as the "call operator". – juanpa.arrivillaga Feb 15 '17 at 01:10
Noted. Thanks again! – JWK3986 Feb 15 '17 at 04:16

score 0 · Answer 2 · edited May 23 '17 at 12:24

0

Your error in the line celsiusTemp = (farenTemp - 32)(5) / 9 is that you have omitted the multiply sign : celsiusTemp = (farenTemp - 32)*5 / 9. If not Python thinks that (farenTemp - 32) is a callable. Good explanation in this link.

edited May 23 '17 at 12:24

Community

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answered Feb 15 '17 at 00:58

VdF

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Tinkering with if/ if.. else statements and running into an error

2 Answers2