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Apprendre for loop (4/5) | Loops
Learn Python from Scratch
course content

Contenu du cours

Learn Python from Scratch

Learn Python from Scratch

1. The basics
2. Arithmetic operations
3. Common data types
4. Conditional statements
5. Other data types
6. Loops
7. Functions

book
for loop (4/5)

Let's make our output a bit user-friendlier. Last time we iterated over all elements. Now let's iterate over indexes, and get elements by their indexes. For example, for countries, considering we know that each country is represented by two numbers, it will look like:

12345678910111213
# countries data countries = ['USA', (9629091, 331002651), 'Canada', (9984670, 37742154), 'Germany', (357114, 83783942), 'Brazil', (8515767, 212559417), 'India', (3166391, 1380004385)] # construct user-friendlier for loop for i in range(len(countries)): # it will iterate over all indexes if type(countries[i]) is tuple: # check if our element is tuple print('Area:', countries[i][0], 'sq km') print('Population:', countries[i][1]) print('--------------') else: print('Country name:', countries[i])
copy

There we used knowledge about our data, that each tuple is the length of 2. Also, we added a dotted line after each tuple to divide countries.

Tâche

Swipe to start coding

Using the same approach as in the example, print the information about all people from the people list.

Solution

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Tout était clair ?

Comment pouvons-nous l'améliorer ?

Merci pour vos commentaires !

Section 6. Chapitre 6
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book
for loop (4/5)

Let's make our output a bit user-friendlier. Last time we iterated over all elements. Now let's iterate over indexes, and get elements by their indexes. For example, for countries, considering we know that each country is represented by two numbers, it will look like:

12345678910111213
# countries data countries = ['USA', (9629091, 331002651), 'Canada', (9984670, 37742154), 'Germany', (357114, 83783942), 'Brazil', (8515767, 212559417), 'India', (3166391, 1380004385)] # construct user-friendlier for loop for i in range(len(countries)): # it will iterate over all indexes if type(countries[i]) is tuple: # check if our element is tuple print('Area:', countries[i][0], 'sq km') print('Population:', countries[i][1]) print('--------------') else: print('Country name:', countries[i])
copy

There we used knowledge about our data, that each tuple is the length of 2. Also, we added a dotted line after each tuple to divide countries.

Tâche

Swipe to start coding

Using the same approach as in the example, print the information about all people from the people list.

Solution

Switch to desktopPassez à un bureau pour une pratique réelleContinuez d'où vous êtes en utilisant l'une des options ci-dessous
Tout était clair ?

Comment pouvons-nous l'améliorer ?

Merci pour vos commentaires !

Section 6. Chapitre 6
Switch to desktopPassez à un bureau pour une pratique réelleContinuez d'où vous êtes en utilisant l'une des options ci-dessous
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