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Python Data Types
course content

Course Content

Python Data Types

Python Data Types

1. Numeric Types
Numeric TypesIntegersFloating Point NumbersComplex NumbersChallengeAddition SubtractionMultiplicationDivision
2. Boolean Type
What is a Boolean Data Type?Python bool() FunctionKeywords: and, or, notChallenge 1Challenge 2Challenge 3Challenge 4
3. Strings
What is a String?Challenge 1 Looking Inside the Strings ChallengeString Slicing 1/2 String Slicing 2/2Negative IndexingStrings Have Length Check String Searching a String

book Looking Inside the Strings

We can use indexing to get a specific character from a string or if we need to get a range of characters, then we use slices. It is important to note that the value of the index must be an integer. In Python, indexing starts from 0. If we try to access the string item outside the range then we will get an error Index Error. In Python there is also the possibility of negative indexing, in this case -1 is the index of the last element, -2 is the penultimate one, and so on.


              
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# Accessing string characters
string = 'Hello, World'
print('string = ', string)

# Accessing the first character
print(f'The first character is "{string[0]}"')

# Accessing the last character
print(f'The last character is "{string[-1]}"')
copy

Ending index is up to but not including.

Indexing starts from 0.

Task

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test

You have such string watermelon. You have to get such characters: n, m, l, a. Use only positive indexing.

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Section 3. Chapter 3
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book Looking Inside the Strings

We can use indexing to get a specific character from a string or if we need to get a range of characters, then we use slices. It is important to note that the value of the index must be an integer. In Python, indexing starts from 0. If we try to access the string item outside the range then we will get an error Index Error. In Python there is also the possibility of negative indexing, in this case -1 is the index of the last element, -2 is the penultimate one, and so on.


              
12345678910

            
# Accessing string characters
string = 'Hello, World'
print('string = ', string)

# Accessing the first character
print(f'The first character is "{string[0]}"')

# Accessing the last character
print(f'The last character is "{string[-1]}"')
copy

Ending index is up to but not including.

Indexing starts from 0.

Task

Swipe to show code editor

test

You have such string watermelon. You have to get such characters: n, m, l, a. Use only positive indexing.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 3. Chapter 3
toggle bottom row

book Looking Inside the Strings

We can use indexing to get a specific character from a string or if we need to get a range of characters, then we use slices. It is important to note that the value of the index must be an integer. In Python, indexing starts from 0. If we try to access the string item outside the range then we will get an error Index Error. In Python there is also the possibility of negative indexing, in this case -1 is the index of the last element, -2 is the penultimate one, and so on.


              
12345678910

            
# Accessing string characters
string = 'Hello, World'
print('string = ', string)

# Accessing the first character
print(f'The first character is "{string[0]}"')

# Accessing the last character
print(f'The last character is "{string[-1]}"')
copy

Ending index is up to but not including.

Indexing starts from 0.

Task

Swipe to show code editor

test

You have such string watermelon. You have to get such characters: n, m, l, a. Use only positive indexing.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

We can use indexing to get a specific character from a string or if we need to get a range of characters, then we use slices. It is important to note that the value of the index must be an integer. In Python, indexing starts from 0. If we try to access the string item outside the range then we will get an error Index Error. In Python there is also the possibility of negative indexing, in this case -1 is the index of the last element, -2 is the penultimate one, and so on.


              
12345678910

            
# Accessing string characters
string = 'Hello, World'
print('string = ', string)

# Accessing the first character
print(f'The first character is "{string[0]}"')

# Accessing the last character
print(f'The last character is "{string[-1]}"')
copy

Ending index is up to but not including.

Indexing starts from 0.

Task

Swipe to show code editor

test

You have such string watermelon. You have to get such characters: n, m, l, a. Use only positive indexing.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Section 3. Chapter 3
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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