Using a Variable Inside the String

Rob Gaddi rgaddi at highlandtechnology.invalid
Tue May 7 12:43:18 EDT 2019


On 5/7/19 7:55 AM, sveemani at gmail.com wrote:
> On Tuesday, May 7, 2019 at 1:20:49 AM UTC+5:30, MRAB wrote:
>> On 2019-05-06 19:44, sveemani at gmail.com wrote:
>>> Hi all,
>>>
>>> I am new learner of python programming and I am into my basics.
>>> I got  struck with the code in   a sample  program and refer the same with IDE and  googling which did not help me for more than a day.
>>>
>>> What is  wrong with  my last 2  lines?
>>> what I am missing?
>>>
>>> ##################
>>> my_name = 'Veera'
>>> my_age = 40 #  Actually 42
>>> my_height = 155 # Inches
>>> my_weight = "80" # checking the double quotes
>>> my_eyes = 'brown'
>>> my_teeth = 'white'
>>> my_hair =  'black'
>>>
>>> print(f"Let's  talk  about  {my_name}.")
>>> print(f"He's {my_height} inches  tall.")
>>> print(f"He's {my_weight} weight heavy.")
>>> print("Actually  thats  not too Heavy.")
>>>
>>> print(f"He's  got {my_eyes} eyes and {my_hair}  hair.")
>>> print(f"His  teeth are actually  {my_teeth} depending on the  coffee.")
>>>
>>>
>>> ### this  line are where I Struck #####
>>
>> 'my_age' and 'my_height' are numbers, but 'my_weight' is a string
>> (why?). You can't add a number and a string together.
>>
>>> total =   my_age + my_height + my_weight
>>> print(f"If I add {my_age}, {my_height}, and {my_weight} I get  {total} .")
>>>
>>> ##########################
>>>
> 
> 
> Thanks . It worked  .
> Will  have to read more on strings to get the exact total value..
> 

The comment can't be ignored because it's sitting there flagging your 
problem.  Strings (in single or double quote) are strings; a sequence of 
characters as used to write words.  Numbers are numbers.  You can't add 
them together.

This over here is my friend Bob.  What's 31 + 18 + Bob?  The question 
makes no sense, because the operation of addition isn't defined in such 
a way that allows you to add numbers to human beings.  You can't add 
them to strings either.

-- 
Rob Gaddi, Highland Technology -- www.highlandtechnology.com
Email address domain is currently out of order.  See above to fix.


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