Course Content

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

Tuples (2/3)

But you might be wondered - why do we there use tuples instead of lists? Yes, now it makes no difference, but remember, that tuple is immutable, so it is better in terms of memory. But as for now, we shouldn't pay attention to this, as we work with small data.

You can refer to elements inside the tuple the same way as for lists. But at the same time, you can't simply append an element to your tuple, as you need to "rewrite" it.

len() - length of tuple (number of elements);
tuple1 + tuple2 - concatenation (both must be tuples);
tuple1 * n - n copies of tuple1;
tuple1.count(x) - counts number of x in tuple1.

For example, let's modify our tuple with new information:

Country	Area	Population
Brazil	8515767	212559417
India	3166391	1380004385

Pay attention, that for concatenation both must be tuples!


              1234567
            
# old countries tuple
countries_tuple = ("USA", 9629091, 331002651, "Canada", 9984670, 37742154, "Germany", 357114, 83783942)
# new information
new_data = ("Brazil", 8515767, 212559417, "India", 3166391, 1380004385)
# create new updated tuple and print it
upd_countries = countries_tuple + new_data
print(upd_countries)

Task

Update your tuple from the previous exercise with new information below. Then print updated tuple.

Name	Age	Height
John	41	185
Michelle	35	165

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

Section 5. Chapter 5

Tuples (2/3)

You can refer to elements inside the tuple the same way as for lists. But at the same time, you can't simply append an element to your tuple, as you need to "rewrite" it.

len() - length of tuple (number of elements);
tuple1 + tuple2 - concatenation (both must be tuples);
tuple1 * n - n copies of tuple1;
tuple1.count(x) - counts number of x in tuple1.

For example, let's modify our tuple with new information:

Country	Area	Population
Brazil	8515767	212559417
India	3166391	1380004385

Pay attention, that for concatenation both must be tuples!


              1234567
            
# old countries tuple
countries_tuple = ("USA", 9629091, 331002651, "Canada", 9984670, 37742154, "Germany", 357114, 83783942)
# new information
new_data = ("Brazil", 8515767, 212559417, "India", 3166391, 1380004385)
# create new updated tuple and print it
upd_countries = countries_tuple + new_data
print(upd_countries)

Task

Update your tuple from the previous exercise with new information below. Then print updated tuple.

Name	Age	Height
John	41	185
Michelle	35	165

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

Section 5. Chapter 5

Tuples (2/3)

You can refer to elements inside the tuple the same way as for lists. But at the same time, you can't simply append an element to your tuple, as you need to "rewrite" it.

len() - length of tuple (number of elements);
tuple1 + tuple2 - concatenation (both must be tuples);
tuple1 * n - n copies of tuple1;
tuple1.count(x) - counts number of x in tuple1.

For example, let's modify our tuple with new information:

Country	Area	Population
Brazil	8515767	212559417
India	3166391	1380004385

Pay attention, that for concatenation both must be tuples!


              1234567
            
# old countries tuple
countries_tuple = ("USA", 9629091, 331002651, "Canada", 9984670, 37742154, "Germany", 357114, 83783942)
# new information
new_data = ("Brazil", 8515767, 212559417, "India", 3166391, 1380004385)
# create new updated tuple and print it
upd_countries = countries_tuple + new_data
print(upd_countries)

Task

Update your tuple from the previous exercise with new information below. Then print updated tuple.

Name	Age	Height
John	41	185
Michelle	35	165

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

You can refer to elements inside the tuple the same way as for lists. But at the same time, you can't simply append an element to your tuple, as you need to "rewrite" it.

len() - length of tuple (number of elements);
tuple1 + tuple2 - concatenation (both must be tuples);
tuple1 * n - n copies of tuple1;
tuple1.count(x) - counts number of x in tuple1.

For example, let's modify our tuple with new information:

Country	Area	Population
Brazil	8515767	212559417
India	3166391	1380004385

Pay attention, that for concatenation both must be tuples!


              1234567
            
# old countries tuple
countries_tuple = ("USA", 9629091, 331002651, "Canada", 9984670, 37742154, "Germany", 357114, 83783942)
# new information
new_data = ("Brazil", 8515767, 212559417, "India", 3166391, 1380004385)
# create new updated tuple and print it
upd_countries = countries_tuple + new_data
print(upd_countries)

Task

Update your tuple from the previous exercise with new information below. Then print updated tuple.

Name	Age	Height
John	41	185
Michelle	35	165

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Section 5. Chapter 5

Switch to desktop for real-world practiceContinue from where you are using one of the options below