5. Python collection type - Tuple

1. Tuple

A tuple is an immutable collection with ordered elements that can store values of various data types.

• Immutable: After creating tuples, elements cannot be added, deleted, or modified.
• Efficient: Tuples are more memory-efficient than lists, particularly aiding in performance enhancement when data is infrequently modified.

 

1-1. Creation

Tuple is created using parentheses (),  and each item is separated by commas.

 

1-2. Indexing

• Each item in a tuple has a position (index) and can be accessed using the index.
• Indexing starts from 0.

 

1-3. Slicing

• Only a portion of the tuple can be extracted through slicing.

 

1-4. Operation

• Tuples can be combined using the + operation between tuples..
• User can iterate over a tuple with the * operation.'

 

1-5. Unpacking

• Tuple items can be assigned to variables. (Also possible with lists)

 

1-6. Membership Testing

• The in operator can be used to check if a specific value exists in a tuple. (Also possible with lists)

 

1-7. Sorting Tuples

• Tuples don't provide a sort() method, but they can be sorted using the sorted() function.

 

1-8. Conversion

• Tuples can be converted to lists and vice versa.

 

2. Input Function

• Function that can receive data input from the user (developer)
• Data is always entered as a string (str) type.

 

 

※. Question:

Write a program that calculates the total and average scores for receiving Korean, English, and math scores.

However, the input method is in the form of 100/70/85

 Answer:

Kor, Eng, Math = input('Please enter your Kor, Eng, and Math scores separated by a slash (/).').split('/')

# The First Anwer

a=(int(Kor) + int(Eng)+ int(Math))

b=a/3

print("Total_Score:", a)

print("AVG:", b)

print('-----------')

# The Second Anwer

print(f'Total_Score: {int(Kor)+int(Eng)+int(Math)}')

print(f'AVG: {(int(Kor)+int(Eng)+int(Math))/3}')

print(f'AVG: %.2f' % ((int(Kor)+int(Eng)+int(Math))/3))

Result: