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Python Loops Tutorial
course content

Course Content

Python Loops Tutorial

Python Loops Tutorial

1. The for Loop
The First for LoopIterating with range() FunctionChallenge: Exploring Steps and Reverse with range()The if/else Statements in a for LoopCounting with LoopsLoop Control StatementsThe else Statement in a for LoopThe enumerate() FunctionChallenge (del)
2. The while Loop
The First while LoopInfinite LoopUsing Condition Statements in a while LoopLoop Control Statements in a while LoopThe else Statement in a while LoopChoosing Between for and while Loops in Python
3. Nested Loops
Nested for LoopNested while LoopIf/Else in a Nested LoopBreak/Continue in a Nested LoopNested for Loop 2 (del)While Loop inside a for Loop (del)Challenge (del)

book
While Loop inside a for Loop (del)

Using one type of loop within another is a commonly employed technique.

Today, we'll explore utilizing a while loop within a for loop. You can accomplish the same task by employing a for loop within a while loop.

Examine the code below:


              
1234567891011

            
names = ['Anna', 'Richard', 'John', 'Patrick']

# Printing every name for 3 times
# Setting outer for loop to work with names
for i in names:
  j = 0
  # Setting inner while loop to work with the number of name's printing
  while j < 3:
    print(i, end = ' ')
    j += 1
  print('')
copy

How does the code work?

Task
test

Swipe to show code editor

Print the string matrix using a while loop nested within a for loop.

  1. Configure the outer for loop to iterate through the number of rows in the matrix, using the variable i.

  2. Initialize the variable j.

  3. Configure the inner while loop to iterate through the number of elements in each row of the matrix, using the variable j.

  4. Display each element within the nested loop.

  5. Increment the variable j.

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Section 3. Chapter 6
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book
While Loop inside a for Loop (del)

Using one type of loop within another is a commonly employed technique.

Today, we'll explore utilizing a while loop within a for loop. You can accomplish the same task by employing a for loop within a while loop.

Examine the code below:


              
1234567891011

            
names = ['Anna', 'Richard', 'John', 'Patrick']

# Printing every name for 3 times
# Setting outer for loop to work with names
for i in names:
  j = 0
  # Setting inner while loop to work with the number of name's printing
  while j < 3:
    print(i, end = ' ')
    j += 1
  print('')
copy

How does the code work?

Task
test

Swipe to show code editor

Print the string matrix using a while loop nested within a for loop.

  1. Configure the outer for loop to iterate through the number of rows in the matrix, using the variable i.

  2. Initialize the variable j.

  3. Configure the inner while loop to iterate through the number of elements in each row of the matrix, using the variable j.

  4. Display each element within the nested loop.

  5. Increment the variable j.

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 3. Chapter 6
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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