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Python Data Types

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Questions and Answers

What data type is used to represent whole numbers in Python?

float

complex

bool

int (correct)

Which data type in Python is used to represent an ordered collection of items that can be modified?

set

list (correct)

dict

tuple

What is the data type used to represent boolean values in Python?

float

str

int

bool (correct)

Which data type in Python is used to represent an unordered collection of unique items?

set Signup and view all the answers

What is the data type used to represent complex numbers in Python?

complex Signup and view all the answers

Which data type in Python is used to represent a collection of key-value pairs?

dict Signup and view all the answers

What is the data type used to represent the absence of a value in Python?

None Signup and view all the answers

What is the primary characteristic of a string in Python?

It is an immutable sequence of characters. Signup and view all the answers

What is the difference between a list and a tuple in Python?

A list is mutable, while a tuple is immutable. Signup and view all the answers

What is the purpose of a frozen set in Python?

To create an unordered collection of unique items that cannot be modified. Signup and view all the answers

What is the data type used to represent bytes in Python?

bytes Signup and view all the answers

What is the primary characteristic of a dictionary in Python?

It is an unordered collection of key-value pairs. Signup and view all the answers

What is the primary difference between a set and a frozenset in Python?

A set is mutable, while a frozenset is immutable. Signup and view all the answers

Study Notes

Python Variables: Data Types

Numeric Data Types

int: whole numbers, e.g. 1, 2, 3, etc.
float: decimal numbers, e.g. 3.14, -0.5, etc.
complex: complex numbers, e.g. 3 + 4j, 2 - 5j, etc.

Sequence Data Types

str: strings, e.g. "hello", "goodbye", etc. (can be enclosed in single quotes or double quotes)
list: ordered collections of items, e.g. [1, 2, 3], ["a", "b", "c"], etc.
tuple: ordered, immutable collections of items, e.g. (1, 2, 3), ("a", "b", "c"), etc.

Mapping Data Type

dict: unordered collections of key-value pairs, e.g. {"name": "John", "age": 30}, etc.

Set Data Types

set: unordered collections of unique items, e.g. {1, 2, 3}, {"a", "b", "c"}, etc.
frozenset: unordered, immutable collections of unique items, e.g. frozenset({1, 2, 3}), etc.

Boolean Data Type

bool: boolean values, e.g. True, False, etc.

Binary Data Type

bytes: binary data, e.g. b"hello", etc.
bytearray: mutable binary data, e.g. bytearray(b"hello"), etc.

None Data Type

None: represents the absence of a value, e.g. None, etc.

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Description

Quiz on Python data types, including numeric, sequence, mapping, set, boolean, binary, and none data types. Learn about int, float, complex, str, list, tuple, dict, set, frozenset, bool, bytes, bytearray, and None.