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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

bookEnumerate() in a for Loop

The enumerate() function proves valuable when we need to access both the value and its index within any sequence, such as a list or string.

For instance, a list serves as an ordered data structure that associates each item with a unique index number. Utilizing this index number, we can conveniently access or alter the corresponding value.

The syntax for using enumerate() is: for index, value in enumerate(___)

Note

As a quick reminder: index refers to the position of an element. In Python, we begin counting indexes from 0.

Examine the following code:


              
12345

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

# Printing all elements of the list with their indexes
for i, v in enumerate(numbers):
  print('Numbers[', i, '] =', v)
copy

How does the code work?

Tarefa
test

Swipe to show code editor

Count the quantity of numbers in the list that are multiples of three.

  1. Configure the for loop with enumerate() to operate on numbers, employing i for indexes and v for values.

  2. Establish the condition that checks whether a number is a multiple of three.

  3. Increment the counter by 1 if the number meets the condition.

  4. Display the value of the counter.

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Seção 1. Capítulo 8
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bookEnumerate() in a for Loop

The enumerate() function proves valuable when we need to access both the value and its index within any sequence, such as a list or string.

For instance, a list serves as an ordered data structure that associates each item with a unique index number. Utilizing this index number, we can conveniently access or alter the corresponding value.

The syntax for using enumerate() is: for index, value in enumerate(___)

Note

As a quick reminder: index refers to the position of an element. In Python, we begin counting indexes from 0.

Examine the following code:


              
12345

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

# Printing all elements of the list with their indexes
for i, v in enumerate(numbers):
  print('Numbers[', i, '] =', v)
copy

How does the code work?

Tarefa
test

Swipe to show code editor

Count the quantity of numbers in the list that are multiples of three.

  1. Configure the for loop with enumerate() to operate on numbers, employing i for indexes and v for values.

  2. Establish the condition that checks whether a number is a multiple of three.

  3. Increment the counter by 1 if the number meets the condition.

  4. Display 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 8
toggle bottom row

bookEnumerate() in a for Loop

The enumerate() function proves valuable when we need to access both the value and its index within any sequence, such as a list or string.

For instance, a list serves as an ordered data structure that associates each item with a unique index number. Utilizing this index number, we can conveniently access or alter the corresponding value.

The syntax for using enumerate() is: for index, value in enumerate(___)

Note

As a quick reminder: index refers to the position of an element. In Python, we begin counting indexes from 0.

Examine the following code:


              
12345

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

# Printing all elements of the list with their indexes
for i, v in enumerate(numbers):
  print('Numbers[', i, '] =', v)
copy

How does the code work?

Tarefa
test

Swipe to show code editor

Count the quantity of numbers in the list that are multiples of three.

  1. Configure the for loop with enumerate() to operate on numbers, employing i for indexes and v for values.

  2. Establish the condition that checks whether a number is a multiple of three.

  3. Increment the counter by 1 if the number meets the condition.

  4. Display 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 enumerate() function proves valuable when we need to access both the value and its index within any sequence, such as a list or string.

For instance, a list serves as an ordered data structure that associates each item with a unique index number. Utilizing this index number, we can conveniently access or alter the corresponding value.

The syntax for using enumerate() is: for index, value in enumerate(___)

Note

As a quick reminder: index refers to the position of an element. In Python, we begin counting indexes from 0.

Examine the following code:


              
12345

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

# Printing all elements of the list with their indexes
for i, v in enumerate(numbers):
  print('Numbers[', i, '] =', v)
copy

How does the code work?

Tarefa
test

Swipe to show code editor

Count the quantity of numbers in the list that are multiples of three.

  1. Configure the for loop with enumerate() to operate on numbers, employing i for indexes and v for values.

  2. Establish the condition that checks whether a number is a multiple of three.

  3. Increment the counter by 1 if the number meets the condition.

  4. Display 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 8
Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
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