How to fix error: SyntaxError: invalid syntax

Jake Colborn

Hey, I just picked up python again after not coding with it for many years. But I wanted to throw some simple scripts together to see if I remember all the functionality so far. Now I've got this code:

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#!/usr/bin/python
 
# A program developed to see if the temperature is Celcius or Farhenheit

# and than convert it to the other in a more user friendly manner
 
import os, sys

import math
 
def far(temp):
 
    Celcius = ((temp - 32) * 5) / 9

    Kelvin = Celcius + 273.15
 
def cel(temp):
 
    Far = (temp * 1.8) + 32

    Kelvin = temp + 273.15
 
def kelvin(temp):
 
    Celcius = temp + 273.15

    Far = (Celcius * 1.8) + 32
 
human = raw_input("Is your temperature in Fahrenheit (f), Celcius (c), or Kelvin (k) --> ")

temp1 = int(raw_input("What is your temperature --> ")
 
if human=="f":

    far(temp1)

    print "Your temperature is %s in Celcius and %s in Kelvin" % Celcius,Kelvin

if human=="c":

    cel(temp1)

    print "Your temperature is %s in Fahrenheit and %s in Kelvin" % Far,Kelvin

if human=="k":

    kelvin(temp1)

    print "Your temperature is %s in Celcius and %s in Fahrenheit" % Celcius,Far

I want the user to define which kind of temperature they have and than the program to output the other temperatures. But so far all I get is an error in the syntax at line 28:

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  File "temp2.py", line 28

    if human=="f":

                 ^

SyntaxError: invalid syntax

Anyone have any thoughts?

dwblas

You have to always check the previous line as well. If you have forgotten a closing parenthesis for example, the interpreter will think that this line is a continuation of the previous line and point to this line with the error. Also consider wrapping the input in a try/except, so if someone enters "F" or "98.6" for the temperature instead of an integer, you can catch it and then ask for a whole number.

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 ##   depending on how much input checking you want to do

human = ""

while human.lower() not in ["c", "f", "k"]:

    human = raw_input("Is your temperature in Fahrenheit (f), Celsius (c), or Kelvin (k) --> ")
 
## simplified example

try:

    temp1 = int(raw_input("What is your temperature --> "))

except:

    print "The temperature must be a whole number"

How to fix error: SyntaxError: invalid syntax

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