View source for Understand how to input strings and numbers into variables

[[file:python.png|right|frame|Python programming language<ref>http://www.flaticon.com/</ref>]]
<br />
This page is meant to be used in conjunction with  [[media:Programming companion Python.pdf | our excellent resource for learning python]]. This page tracks with '''objective 2'''.

Please remember: 
# Data is input by a user into a variable.
# Variables have a data type: string, integer or float as examples, indicating how much memory they will use and the type of data they will store.


<br />
<br />

== Simple adder challenge == 
Write a program that asks the user for two numbers.
Part of the reason this one can be tricky is because you need to think about the [[Programming#Primitive data types]] of data you are using. Please remember in Python we can't mix integers and strings. 


<div class="toccolours mw-collapsible mw-collapsed">
Click the expand link to see one possible solution, but NOT before you have tried and failed at least three times
<div class="mw-collapsible-content">

<syntaxhighlight lang="python">
number_1 = int(input("enter first number: "))
number_2 = int(input("enter second number: "))
answer = number_1 + number_2
print("The answer is ", str(answer))
</syntaxhighlight>

</div>
</div>

== Test marks challenge == 

Write a program that will ask the user to enter three test marks out of 100 and output the average. It might helpful to remember an old friend, PEMDAS! 


<div class="toccolours mw-collapsible mw-collapsed">
Click the expand link to see one possible solution, but NOT before you have tried and failed at least three times
<div class="mw-collapsible-content">

<syntaxhighlight lang="python">

number_1 = int(input("enter the first test score: "))
number_2 = int(input("enter the second test score: "))
number_3 = int(input("enter the third test score: "))
answer = (number_1 + number_2 + number_3) / 3
print("The average of the three tests scores is: ", str(answer))
  

</syntaxhighlight>

</div>
</div>


If you are still stuck, or you have other questions,  you may want to [https://discuss.computersciencewiki.org/ '''ask a question on our discussion board'''].

== References == 

[[Category:Python programming language]]
[[Category:Programming languages]]