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Tuples

In Python, a tuple is an immutable sequence of elements, meaning once you create it, you can't change its contents. Think of it as a setlist for a concert—once it's decided, it stays the same throughout the performance. Here's how you can create a tuple:


python

In this example, track_info is a tuple containing the track name, artist, and release year.

Tuples are perfect for storing related pieces of information that shouldn't change. They're like the essential elements of a song that remain constant, such as the title, artist, and duration. Tuples are also more memory-efficient than lists, making them ideal for storing fixed data.

Accessing elements in a tuple is similar to accessing notes in a melody. You use indexing to get the specific element you need:


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track_info = ("Bohemian Rhapsody", "Queen", 1975)
track_name = track_info[0]
artist = track_info[1]
release_year = track_info[2]

print("Track Name:", track_name)
print("Artist:", artist)
print("Release Year:", release_year)

Tuple unpacking is like breaking down a song into its individual components. You can assign each element of a tuple to a variable in a single line:


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track_info = ("Bohemian Rhapsody", "Queen", 1975)
track_name, artist, release_year = track_info

print("Track Name:", track_name)
print("Artist:", artist)
print("Release Year:", release_year)

Tuples are often used to return multiple values from a function. Imagine you're analyzing a track and want to return both its loudness and tempo:


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def analyze_track(track):
    loudness = -5.2  # in dB
    tempo = 120  # in BPM
    return (loudness, tempo)

loudness, tempo = analyze_track("Bohemian Rhapsody")
print("Loudness:", loudness, "dB")
print("Tempo:", tempo, "BPM")

Завдання

Swipe to start coding

Complete the get_popularity_range function that calculates and returns a tuple containing the minimum and maximum track popularity from a list of tracks. This is useful for understanding the range of popularity within a dataset.

Inputs:

tracks: A list of dictionaries, where each dictionary represents a track and contains a key 'track_popularity' with an integer value.

Steps:

Initialize Variables:
- Determine the minimum popularity by iterating over the tracks and finding the smallest 'track_popularity' value.
- Determine the maximum popularity by iterating over the tracks and finding the largest 'track_popularity' value.
Return the Tuple:
- Ensure the function returns a tuple where the first element is the minimum popularity and the last element is the maximum popularity. This order is crucial for maintaining consistency and clarity in the data representation.

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Секція 2. Розділ 4

solution.py

main.py

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