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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

bookRange() in a for Loop 1/2

Imagine that we wish to print numbers from 1 to 100. Naturally, we could do this manually:

But that would be incredibly time-consuming!

If we had to print numbers from 1 to 1,000,000, we'd be counting manually for the rest of our lives!

To tackle this challenge, we'll employ the for loop in conjunction with the range() function!

Take a look at the following code:


              
123

            
# Printing all numbers from 0 to 100
for i in range(101):
  print(i)
copy

How does the code work?

The range() function provides a sequence of numbers that starts at 0 (by default) when the initial limit is unspecified. It increments by 1 (by default) until it reaches a final limit (the final limit itself is not included).

The format of the range() function is: range(start, end, step).

If our intention is to operate with decreasing numbers, we can achieve this by inputting a negative step argument into the range() function.

Look at the code below:


              
123456789

            
# Increasing
# Printing numbers from 0 to 10
for i in range(0, 11, 1):
  print(i)

# Decreasing
# Printing numbers from 10 to 0
for i in range(10, -1, -1):
  print(i)
copy
Tarefa
test

Swipe to show code editor

Print numbers from -1 to -5, follow these steps:

  1. Configure the for loop to display decreasing numbers from -1 to -5.
  2. Print each number within the loop.

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 2
toggle bottom row

bookRange() in a for Loop 1/2

Imagine that we wish to print numbers from 1 to 100. Naturally, we could do this manually:

But that would be incredibly time-consuming!

If we had to print numbers from 1 to 1,000,000, we'd be counting manually for the rest of our lives!

To tackle this challenge, we'll employ the for loop in conjunction with the range() function!

Take a look at the following code:


              
123

            
# Printing all numbers from 0 to 100
for i in range(101):
  print(i)
copy

How does the code work?

The range() function provides a sequence of numbers that starts at 0 (by default) when the initial limit is unspecified. It increments by 1 (by default) until it reaches a final limit (the final limit itself is not included).

The format of the range() function is: range(start, end, step).

If our intention is to operate with decreasing numbers, we can achieve this by inputting a negative step argument into the range() function.

Look at the code below:


              
123456789

            
# Increasing
# Printing numbers from 0 to 10
for i in range(0, 11, 1):
  print(i)

# Decreasing
# Printing numbers from 10 to 0
for i in range(10, -1, -1):
  print(i)
copy
Tarefa
test

Swipe to show code editor

Print numbers from -1 to -5, follow these steps:

  1. Configure the for loop to display decreasing numbers from -1 to -5.
  2. Print each number within the loop.

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 2
toggle bottom row

bookRange() in a for Loop 1/2

Imagine that we wish to print numbers from 1 to 100. Naturally, we could do this manually:

But that would be incredibly time-consuming!

If we had to print numbers from 1 to 1,000,000, we'd be counting manually for the rest of our lives!

To tackle this challenge, we'll employ the for loop in conjunction with the range() function!

Take a look at the following code:


              
123

            
# Printing all numbers from 0 to 100
for i in range(101):
  print(i)
copy

How does the code work?

The range() function provides a sequence of numbers that starts at 0 (by default) when the initial limit is unspecified. It increments by 1 (by default) until it reaches a final limit (the final limit itself is not included).

The format of the range() function is: range(start, end, step).

If our intention is to operate with decreasing numbers, we can achieve this by inputting a negative step argument into the range() function.

Look at the code below:


              
123456789

            
# Increasing
# Printing numbers from 0 to 10
for i in range(0, 11, 1):
  print(i)

# Decreasing
# Printing numbers from 10 to 0
for i in range(10, -1, -1):
  print(i)
copy
Tarefa
test

Swipe to show code editor

Print numbers from -1 to -5, follow these steps:

  1. Configure the for loop to display decreasing numbers from -1 to -5.
  2. Print each number within the loop.

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!

Imagine that we wish to print numbers from 1 to 100. Naturally, we could do this manually:

But that would be incredibly time-consuming!

If we had to print numbers from 1 to 1,000,000, we'd be counting manually for the rest of our lives!

To tackle this challenge, we'll employ the for loop in conjunction with the range() function!

Take a look at the following code:


              
123

            
# Printing all numbers from 0 to 100
for i in range(101):
  print(i)
copy

How does the code work?

The range() function provides a sequence of numbers that starts at 0 (by default) when the initial limit is unspecified. It increments by 1 (by default) until it reaches a final limit (the final limit itself is not included).

The format of the range() function is: range(start, end, step).

If our intention is to operate with decreasing numbers, we can achieve this by inputting a negative step argument into the range() function.

Look at the code below:


              
123456789

            
# Increasing
# Printing numbers from 0 to 10
for i in range(0, 11, 1):
  print(i)

# Decreasing
# Printing numbers from 10 to 0
for i in range(10, -1, -1):
  print(i)
copy
Tarefa
test

Swipe to show code editor

Print numbers from -1 to -5, follow these steps:

  1. Configure the for loop to display decreasing numbers from -1 to -5.
  2. Print each number within the loop.

Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Seção 1. Capítulo 2
Switch to desktopMude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
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