Скачать или смотреть Learn Code Quiz: Data Science | Looping and Selecting Elements in Lists, Dictionaries, and Tuples

Description:
Welcome to our exciting Python coding tutorial for data science enthusiasts! In this comprehensive tutorial, you'll dive deep into essential concepts for Looping and Selecting Elements in Lists in Python. 🐍💻 Don't forget to like this video, subscribe to our channel    / @learncodequiz   for more exciting content, and share it with fellow coding enthusiasts. Happy coding! 🚀✨

For you to try in Jupyter notebook and practice

my_list = [1, 2, 3, 4, 5]
List demonstration
my_list = [1, 2, 3, 4, 5]
Looping through the list using a for loop
print("Looping through the list:")
for item in my_list:
print(item)

Output: Looping through the list:
1
2
3
4
5

my_list = [1, 2, 3, 4, 5]
Selecting elements from the list
print("\nSelecting elements from the list:")
Select the element at index 0
print("Element at index 0:", my_list[0])

Output: Selecting elements from the list:
Output: Element at index 0: 1

my_list = [1, 2, 3, 4, 5]
Select the element at index 2
print("Element at index 2:", my_list[2])

Output: Element at index 2: 3

my_list = [1, 2, 3, 4, 5]
Selecting a range of elements using slicing
print("\nSlicing the list:")
Select elements from index 1 to 3 (exclusive)
print("Elements from index 1 to 3:", my_list[1:3])

Output: Slicing the list:

Elements from index 1 to 3: [2, 3]
my_list = [1, 2, 3, 4, 5]
Select all elements starting from index 2 till the end
print("Elements from index 2 to end:", my_list[2:])

Output: Elements from index 2 to end: [3, 4, 5]

my_list = [1, 2, 3, 4, 5]
Select all elements from the beginning to index 3 (exclusive)
print("Elements from beginning to index 3:", my_list[:3])

Output: Elements from beginning to index 3: [1, 2, 3]

Looping and Selecting Elements in Dictionaries:
my_dict = {'name': 'John', 'age': 30, 'city': 'New York'}
Dictionary demonstration
my_dict = {'name': 'John', 'age': 30, 'city': 'New York'}
Looping through the dictionary using a for loop
print("Looping through the dictionary:")
for key, value in my_dict.items():
print(key, ":", value)

Output: Looping through the dictionary:
Output: name : John
Output: age : 30
Output: city : New York

my_dict = {'name': 'John', 'age': 30, 'city': 'New York'}
Selecting elements from the dictionary
print("\nSelecting elements from the dictionary:")
Select the value for the 'name' key
print("Name:", my_dict['name'])

Output: Selecting elements from the dictionary:
Output: Name: John

my_dict = {'name': 'John', 'age': 30, 'city': 'New York'}
Select the value for the 'age' key
print("Age:", my_dict['age'])

Output: Age: 30

Note: There's no concept of slicing for dictionaries as they are not ordered.
Looping and Selecting Elements in Tuples:

my_tuple = (10, 20, 30, 40, 50)
Tuple demonstration
my_tuple = (10, 20, 30, 40, 50)
Looping through the tuple using a for loop
print("Looping through the tuple:")
for item in my_tuple:
print(item)

Output: Looping through the tuple:
10
20
30
40
50

my_tuple = (10, 20, 30, 40, 50)
Selecting elements from the tuple
print("\nSelecting elements from the tuple:")
Select the element at index 0
print("Element at index 0:", my_tuple[0])

Output: Selecting elements from the tuple:
Output: Element at index 0: 10

Select the element at index 2
print("Element at index 2:", my_tuple[2])

Output: Element at index 2: 30

my_tuple = (10, 20, 30, 40, 50)
Selecting a range of elements using slicing
print("\nSlicing the tuple:")
Select elements from index 1 to 3 (exclusive)
print("Elements from index 1 to 3:", my_tuple[1:3])

Output: Slicing the tuple:
Output: Elements from index 1 to 3: (20, 30)

my_tuple = (10, 20, 30, 40, 50)
Select all elements starting from index 2 till the end
print("Elements from index 2 to end:", my_tuple[2:])

Output: Elements from index 2 to end: (30, 40, 50)

my_tuple = (10, 20, 30, 40, 50)
Select all elements from the beginning to index 3 (exclusive)
print("Elements from beginning to index 3:", my_tuple[:3])

Output: Elements from beginning to index 3: (10, 20, 30)
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