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Introduction to Python(ihor)

bookExplore Nested Loops in Python

Just as lists can be nested within lists or tuples within tuples, loops can also be nested to iterate over elements inside other loops. For example, when working with a list that contains multiple sublists, a nested loop can iterate through both the main list and its inner elements.


              
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# Countries data
countries = [['USA', 9629091, 331002651], ['Canada', 9984670, 37742154], 
             ['Germany', 357114, 83783942], ['Brazil', 8515767, 212559417], 
             ['India', 3166391, 1380004385]]


# Iterate over list
for country in countries: 
    
    # Iterate over nested list
    for j in country:
        print(j, end = ' ')
      
    print('\n') # Print new line after nested loop finish
copy

The variable j represents each element within the nested lists inside the countries list. As the inner loop iterates, j sequentially takes on the values of each element in the sublists, printing them one by one.

question mark

In a nested loop that iterates over a list of lists, what does the inner loop variable represent?

Select the correct answer

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Seksjon 5. Kapittel 8

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bookExplore Nested Loops in Python

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Just as lists can be nested within lists or tuples within tuples, loops can also be nested to iterate over elements inside other loops. For example, when working with a list that contains multiple sublists, a nested loop can iterate through both the main list and its inner elements.


              
1234567891011121314

            
# Countries data
countries = [['USA', 9629091, 331002651], ['Canada', 9984670, 37742154], 
             ['Germany', 357114, 83783942], ['Brazil', 8515767, 212559417], 
             ['India', 3166391, 1380004385]]


# Iterate over list
for country in countries: 
    
    # Iterate over nested list
    for j in country:
        print(j, end = ' ')
      
    print('\n') # Print new line after nested loop finish
copy

The variable j represents each element within the nested lists inside the countries list. As the inner loop iterates, j sequentially takes on the values of each element in the sublists, printing them one by one.

question mark

In a nested loop that iterates over a list of lists, what does the inner loop variable represent?

Select the correct answer

Alt var klart?

Hvordan kan vi forbedre det?

Takk for tilbakemeldingene dine!

Seksjon 5. Kapittel 8
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