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Python Loops Tutorial
course content

Course Content

Python Loops Tutorial

Python Loops Tutorial

1. The for Loop
The first for LoopRange() in a for Loop 1/2Range() in a for Loop 2/2List & for LoopIf/Else in a for LoopBreak/Continue in a for LoopPass, Else in a for LoopEnumerate() in a for LoopChallenge
2. The while Loop
The First while LoopInfinite LoopList & while LoopIf/Else in a while LoopBreak/Continue in a while LoopPass, Else in a while Loop
3. Nested Loops
First Nested Loop PatternNested for LoopNested while LoopWhile Loop inside a for LoopIf/Else in a Nested LoopBreak/Continue in a Nested LoopChallenge

bookList & for Loop

We can employ various data structures when working with loops. So far, we've covered strings, and now we'll explore working with a list of numbers.

Examine the following code:


              
12345

            
numbers = [2, 3, 4, 5, 6, 7, 8, 11]

# Printing all elements of the list
for i in numbers:
  print(i)
copy

How does the code work?

To work with a decreasing list, you can utilize the reversed() function. This function allows you to reverse the order of elements in a list, effectively turning it into a decreasing list.


              
12345

            
numbers = [2, 3, 4, 5, 6, 7, 8, 11]

# Printing all elements of the reversed list
for i in reversed(numbers):
  print(i)
copy

How does the code work?

Task

To sum the elements inside the list, follow these steps:

  1. Configure the for loop to operate on the numbers, utilizing i as an element of the list.
  2. Calculate the sum by adding elements to the counter within the loop.
  3. Print the value of the counter after the loop has completed.

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Section 1. Chapter 4
toggle bottom row

bookList & for Loop

We can employ various data structures when working with loops. So far, we've covered strings, and now we'll explore working with a list of numbers.

Examine the following code:


              
12345

            
numbers = [2, 3, 4, 5, 6, 7, 8, 11]

# Printing all elements of the list
for i in numbers:
  print(i)
copy

How does the code work?

To work with a decreasing list, you can utilize the reversed() function. This function allows you to reverse the order of elements in a list, effectively turning it into a decreasing list.


              
12345

            
numbers = [2, 3, 4, 5, 6, 7, 8, 11]

# Printing all elements of the reversed list
for i in reversed(numbers):
  print(i)
copy

How does the code work?

Task

To sum the elements inside the list, follow these steps:

  1. Configure the for loop to operate on the numbers, utilizing i as an element of the list.
  2. Calculate the sum by adding elements to the counter within the loop.
  3. Print the value of the counter after the loop has completed.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 1. Chapter 4
toggle bottom row

bookList & for Loop

We can employ various data structures when working with loops. So far, we've covered strings, and now we'll explore working with a list of numbers.

Examine the following code:


              
12345

            
numbers = [2, 3, 4, 5, 6, 7, 8, 11]

# Printing all elements of the list
for i in numbers:
  print(i)
copy

How does the code work?

To work with a decreasing list, you can utilize the reversed() function. This function allows you to reverse the order of elements in a list, effectively turning it into a decreasing list.


              
12345

            
numbers = [2, 3, 4, 5, 6, 7, 8, 11]

# Printing all elements of the reversed list
for i in reversed(numbers):
  print(i)
copy

How does the code work?

Task

To sum the elements inside the list, follow these steps:

  1. Configure the for loop to operate on the numbers, utilizing i as an element of the list.
  2. Calculate the sum by adding elements to the counter within the loop.
  3. Print the value of the counter after the loop has completed.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

We can employ various data structures when working with loops. So far, we've covered strings, and now we'll explore working with a list of numbers.

Examine the following code:


              
12345

            
numbers = [2, 3, 4, 5, 6, 7, 8, 11]

# Printing all elements of the list
for i in numbers:
  print(i)
copy

How does the code work?

To work with a decreasing list, you can utilize the reversed() function. This function allows you to reverse the order of elements in a list, effectively turning it into a decreasing list.


              
12345

            
numbers = [2, 3, 4, 5, 6, 7, 8, 11]

# Printing all elements of the reversed list
for i in reversed(numbers):
  print(i)
copy

How does the code work?

Task

To sum the elements inside the list, follow these steps:

  1. Configure the for loop to operate on the numbers, utilizing i as an element of the list.
  2. Calculate the sum by adding elements to the counter within the loop.
  3. Print the value of the counter after the loop has completed.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Section 1. Chapter 4
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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