How do I fix TypeError: 'int' object is not iterable?
<p>I am trying to write a program that allows you to enter the number of students in a class, and then enter 3 test grades for each student to calculate averages.  I am new to programing and I keep getting an error that I don't understand what it means or how to fix it.  This is what I have so far:</p>

<pre><code>students=int(input('Please enter the number of students in the class: '))

for number in students:
        first_grade=(input("Enter student's first grade: "))
        second_grade=(input("Enter student's second grade: "))
        third_grade=(input("Enter student's third grade: "))
</code></pre>
