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Python Loops Tutorial
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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

bookBreak/Continue in a for Loop

The break statement is employed to prematurely exit a loop. In our previous task, when searching for the number 8 in the list, if we wish to conclude the search as soon as we find the element, we can utilize break.

Examine the code below:


              
123456789

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

# Finishing the loop when 8 is found
for i in numbers:
  if i == 8:
    print('Here is 8!')
    break
  else:
    print('This num is not 8')
copy

How does the code work?

Now, let's work on counting all occurrences of 8 in our list using the continue statement. The continue statement allows us to skip a specific block of code for the current iteration of the loop only.

Examine the code below:


              
12345678910

            
numbers = [2, 3, 8, 5, 6, 7, 8, 11, 8]
counter = 0

# Counting all 8 in the list
for i in numbers:
  if i == 8:
    counter += 1
  else:
    continue
print(counter)
copy

How does the code work?

Tarefa
test

Swipe to show code editor

To multiply the elements of the list and stop the program when the next multiplication exceeds 100, follow these steps:

  1. Configure a for loop to operate on the numbers, using i as an element of the list.

  2. Set the condition to check if the result of the multiplication (counter) is going to reach or exceed 100. If so, break out of the loop; otherwise, continue multiplying by the next element.

  3. Print the value of the counter.

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Seção 1. Capítulo 6
toggle bottom row

bookBreak/Continue in a for Loop

The break statement is employed to prematurely exit a loop. In our previous task, when searching for the number 8 in the list, if we wish to conclude the search as soon as we find the element, we can utilize break.

Examine the code below:


              
123456789

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

# Finishing the loop when 8 is found
for i in numbers:
  if i == 8:
    print('Here is 8!')
    break
  else:
    print('This num is not 8')
copy

How does the code work?

Now, let's work on counting all occurrences of 8 in our list using the continue statement. The continue statement allows us to skip a specific block of code for the current iteration of the loop only.

Examine the code below:


              
12345678910

            
numbers = [2, 3, 8, 5, 6, 7, 8, 11, 8]
counter = 0

# Counting all 8 in the list
for i in numbers:
  if i == 8:
    counter += 1
  else:
    continue
print(counter)
copy

How does the code work?

Tarefa
test

Swipe to show code editor

To multiply the elements of the list and stop the program when the next multiplication exceeds 100, follow these steps:

  1. Configure a for loop to operate on the numbers, using i as an element of the list.

  2. Set the condition to check if the result of the multiplication (counter) is going to reach or exceed 100. If so, break out of the loop; otherwise, continue multiplying by the next element.

  3. Print the value of the counter.

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

Seção 1. Capítulo 6
toggle bottom row

bookBreak/Continue in a for Loop

The break statement is employed to prematurely exit a loop. In our previous task, when searching for the number 8 in the list, if we wish to conclude the search as soon as we find the element, we can utilize break.

Examine the code below:


              
123456789

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

# Finishing the loop when 8 is found
for i in numbers:
  if i == 8:
    print('Here is 8!')
    break
  else:
    print('This num is not 8')
copy

How does the code work?

Now, let's work on counting all occurrences of 8 in our list using the continue statement. The continue statement allows us to skip a specific block of code for the current iteration of the loop only.

Examine the code below:


              
12345678910

            
numbers = [2, 3, 8, 5, 6, 7, 8, 11, 8]
counter = 0

# Counting all 8 in the list
for i in numbers:
  if i == 8:
    counter += 1
  else:
    continue
print(counter)
copy

How does the code work?

Tarefa
test

Swipe to show code editor

To multiply the elements of the list and stop the program when the next multiplication exceeds 100, follow these steps:

  1. Configure a for loop to operate on the numbers, using i as an element of the list.

  2. Set the condition to check if the result of the multiplication (counter) is going to reach or exceed 100. If so, break out of the loop; otherwise, continue multiplying by the next element.

  3. Print the value of the counter.

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

The break statement is employed to prematurely exit a loop. In our previous task, when searching for the number 8 in the list, if we wish to conclude the search as soon as we find the element, we can utilize break.

Examine the code below:


              
123456789

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

# Finishing the loop when 8 is found
for i in numbers:
  if i == 8:
    print('Here is 8!')
    break
  else:
    print('This num is not 8')
copy

How does the code work?

Now, let's work on counting all occurrences of 8 in our list using the continue statement. The continue statement allows us to skip a specific block of code for the current iteration of the loop only.

Examine the code below:


              
12345678910

            
numbers = [2, 3, 8, 5, 6, 7, 8, 11, 8]
counter = 0

# Counting all 8 in the list
for i in numbers:
  if i == 8:
    counter += 1
  else:
    continue
print(counter)
copy

How does the code work?

Tarefa
test

Swipe to show code editor

To multiply the elements of the list and stop the program when the next multiplication exceeds 100, follow these steps:

  1. Configure a for loop to operate on the numbers, using i as an element of the list.

  2. Set the condition to check if the result of the multiplication (counter) is going to reach or exceed 100. If so, break out of the loop; otherwise, continue multiplying by the next element.

  3. Print the value of the counter.

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Seção 1. Capítulo 6
Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
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