Learn Python from Scratch

Зміст курсу

Learn Python from Scratch

Learn Python from Scratch

1. The basics

Hello, World!Hello, me!Variables Comments Indentation Numbers and strings

2. Arithmetic operations

Addition Multiplication and power Division and whole part division

3. Common data types

Data types Numbers float and int Storing text Strings slicing Concatenation

4. Conditional statements

Boolean data type Combining conditions Simple if/else expressions (1/2)Simple if/else expressions (2/2)If/else expressions with multiple conditions (1/2)If/else expressions with multiple conditions (2/2)

5. Other data types

Lists (1/3)Lists (2/3)Lists (3/3)Tuples (1/3)Tuples (2/3)Tuples (3/3)Dictionaries (1/2)Dictionaries (2/2)

6. Loops

while loop (1/2)while loop (2/2)for loop (1/5)for loop (2/5)for loop (3/5)for loop (4/5)for loop (5/5)

7. Functions

Built-in functions Writing your own functions (1/5)Writing your own functions (2/5)Writing your own functions (3/5)Writing your own functions (4/5)Writing your own functions (5/5)lambda functions

for loop (3/5)

After the last task, you can see that it looks good, but it would be much better if we could also get both numbers separately. This is possible, as you can put one loop in another.

For example, you surely remember our list with 5 countries and their areas and populations. Firstly, we can build for loop to print each element. Then, we can check, if this element is a tuple. If True, we need to iterate over its elements. To check if the object is, for example, tuple, use

object is tuple

Let's see how it works:


              1234567891011
            
# countries data
countries = ['USA', (9629091, 331002651), 'Canada', (9984670, 37742154), 
             'Germany', (357114, 83783942), 'Brazil', (8515767, 212559417), 
             'India', (3166391, 1380004385)]

for i in countries: # iterate over list
  if type(i) is tuple: # check if it is tuple
    for j in i: # if tuple, then iterate over it
      print(j)
  else: # if not, just print item
    print(i)

Завдання

Swipe to start coding

Using list people print all the names, ages, and heights in that order.

Рішення

Перейдіть на комп'ютер для реальної практикиПродовжуйте з того місця, де ви зупинились, використовуючи один з наведених нижче варіантів

Все було зрозуміло?

Дякуємо за ваш відгук!

Секція 6. Розділ 5

toggle bottom row

for loop (3/5)

After the last task, you can see that it looks good, but it would be much better if we could also get both numbers separately. This is possible, as you can put one loop in another.

For example, you surely remember our list with 5 countries and their areas and populations. Firstly, we can build for loop to print each element. Then, we can check, if this element is a tuple. If True, we need to iterate over its elements. To check if the object is, for example, tuple, use

object is tuple

Let's see how it works:


              1234567891011
            
# countries data
countries = ['USA', (9629091, 331002651), 'Canada', (9984670, 37742154), 
             'Germany', (357114, 83783942), 'Brazil', (8515767, 212559417), 
             'India', (3166391, 1380004385)]

for i in countries: # iterate over list
  if type(i) is tuple: # check if it is tuple
    for j in i: # if tuple, then iterate over it
      print(j)
  else: # if not, just print item
    print(i)

Завдання

Swipe to start coding

Using list people print all the names, ages, and heights in that order.

Рішення

Перейдіть на комп'ютер для реальної практикиПродовжуйте з того місця, де ви зупинились, використовуючи один з наведених нижче варіантів

Все було зрозуміло?

Дякуємо за ваш відгук!

Секція 6. Розділ 5

Перейдіть на комп'ютер для реальної практикиПродовжуйте з того місця, де ви зупинились, використовуючи один з наведених нижче варіантів

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