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

Lists (2/3)

There are several operations available for manipulating lists, same as for string, such as:

len() - length of list (i.e. number of elements);
list1 + list2 - concatenation (both must be lists);
list1 * n - n copies of list1;
list.append(x) - add x (one element!) to the end of list (x can not be list) - this one rewrites your list;
list.extend((x, y, ...)) - add x,y, ... to the end of list - also rewrites your list;
list.copy() - creates a copy of your list;
list.count(x) - counts number of x in list.

For example, we can modify a bit our list with several more countries.


              12345678910
            
countries = ["USA", 9629091, "Canada", 9984670, "Germany", 357114]
# list with new countries
countries_new = ["Brazil", 8515767, "India", 3166391]

# add new data (list) to our list using concatenation
print(countries + countries_new)

# using list method
countries.extend(("Brazil", 8515767, "India", 3166391))
print(countries)

Завдання

Swipe to start coding

Modify your last list with new data. Experiment with both methods and print the result.

Name	Age
John	41
Michelle	35

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 5. Розділ 2

toggle bottom row

Lists (2/3)

There are several operations available for manipulating lists, same as for string, such as:

len() - length of list (i.e. number of elements);
list1 + list2 - concatenation (both must be lists);
list1 * n - n copies of list1;
list.append(x) - add x (one element!) to the end of list (x can not be list) - this one rewrites your list;
list.extend((x, y, ...)) - add x,y, ... to the end of list - also rewrites your list;
list.copy() - creates a copy of your list;
list.count(x) - counts number of x in list.

For example, we can modify a bit our list with several more countries.


              12345678910
            
countries = ["USA", 9629091, "Canada", 9984670, "Germany", 357114]
# list with new countries
countries_new = ["Brazil", 8515767, "India", 3166391]

# add new data (list) to our list using concatenation
print(countries + countries_new)

# using list method
countries.extend(("Brazil", 8515767, "India", 3166391))
print(countries)

Завдання

Swipe to start coding

Modify your last list with new data. Experiment with both methods and print the result.

Name	Age
John	41
Michelle	35

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 5. Розділ 2

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

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