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Python Data Structures
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Python Data Structures

Python Data Structures

1. Mastering Python Lists
Creating Lists in Python: Declaring and Initializing ListsList Indexing in Python: Accessing Elements EfficientlyWorking with Nested Lists in PythonPython List Length: Measuring and Managing List SizeModifying Lists in Python: Updating and Changing ElementsUsing the append() Method: Adding Elements to ListsUsing the insert() Method: Placing Elements at Specific PositionsDeleting Elements in Python Lists: Removing Items SafelyUsing the remove() Method: Deleting Specific Elements from Lists
2. Mastering Python Dictionaries
Creating a Dictionary in Python: Storing Key-Value PairsAccessing Dictionary ValuesAccessing Dictionary KeysAdding Items to a Dictionary: Updating Key-Value PairsUsing the del Keyword: Removing Dictionary EntriesUsing the pop() Method: Deleting Elements with Return ValuesUsing the popitem() Method: Removing the Last Inserted ItemUsing the clear() Method: Emptying a Dictionary Completely
3. Mastering Python Tuples
Creating a Tuple in Python: Defining Immutable Data StructuresAccessing Elements in a Tuple: Indexing TechniqueConcatenating Tuples in Python: Merging Immutable SequencesDeleting Tuples in Python: Removing References to TuplesUpdating Tuples in PythonAdding Items to a Tuple: Alternative Approaches Using ListsCounting Elements in a Tuple: Using the count() MethodFinding Elements in a Tuple: Using the index() Method for Lookup
4. Mastering Python Sets
Creating a Set in Python: Defining Unordered CollectionsUsing the add() Method: Adding Single Elements to a SetUsing the update() Method: Merging Multiple Elements into a SetAccessing Elements in a Set: Iteration and Membership TestingUsing the remove() and discard() MethodsUsing the clear() Method: Removing All Elements from a Set

book
Counting Elements in a Tuple: Using the count() Method

The count() method in Python allows you to count the number of occurrences of a specific element in a tuple. This is particularly useful when you want to analyze repeated data within a tuple.

python

The method returns an integer representing the number of times the element appears in the tuple.


              
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# Tuple of movie genres
movie_genres = ("Action", "Drama", "Action", "Comedy", "Drama", "Action")

# Counting occurrences of "Action"
action_count = movie_genres.count("Action")

print(f"'Action' appears {action_count} times in the tuple.")
copy

The count() method checks how many times "Action" appears in the movie_genres tuple.

Tehtävä

Swipe to start coding

You are given a tuple with the names of famous directors in the film industry, called directors.
You may notice that the director wSteven Spielberg appears multiple times, and you need to find out how many times.

  • Assign the number of occurrences of the name "Steven Spielberg" in the tuple to the variable director_count.
  • Use the count() method to do this.

Ratkaisu

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Osio 3. Luku 7
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book
Counting Elements in a Tuple: Using the count() Method

The count() method in Python allows you to count the number of occurrences of a specific element in a tuple. This is particularly useful when you want to analyze repeated data within a tuple.

python

The method returns an integer representing the number of times the element appears in the tuple.


              
1234567

            
# Tuple of movie genres
movie_genres = ("Action", "Drama", "Action", "Comedy", "Drama", "Action")

# Counting occurrences of "Action"
action_count = movie_genres.count("Action")

print(f"'Action' appears {action_count} times in the tuple.")
copy

The count() method checks how many times "Action" appears in the movie_genres tuple.

Tehtävä

Swipe to start coding

You are given a tuple with the names of famous directors in the film industry, called directors.
You may notice that the director wSteven Spielberg appears multiple times, and you need to find out how many times.

  • Assign the number of occurrences of the name "Steven Spielberg" in the tuple to the variable director_count.
  • Use the count() method to do this.

Ratkaisu

Switch to desktopVaihda työpöytään todellista harjoitusta vartenJatka siitä, missä olet käyttämällä jotakin alla olevista vaihtoehdoista
Oliko kaikki selvää?

Miten voimme parantaa sitä?

Kiitos palautteestasi!

Osio 3. Luku 7
Switch to desktopVaihda työpöytään todellista harjoitusta vartenJatka siitä, missä olet käyttämällä jotakin alla olevista vaihtoehdoista
Pahoittelemme, että jotain meni pieleen. Mitä tapahtui?
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