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| Section | Objectives |
|---|---|
| Topic 1: Object-Oriented Programming | - Attributes and Methods - Constructors (__init__) - Inheritance - Encapsulation - Classes and Objects |
| Topic 2: File Handling and Exceptions | - Exception Handling (try, except, finally) - Custom Exceptions - Reading and Writing Files |
| Topic 3: Testing and Debugging | - Debugging Techniques - Trace Errors - Unit Testing Concepts |
| Topic 4: Python Fundamentals | - Type Conversion - Variables and Data Types - Input/Output Operations - Operators and Expressions |
| Topic 5: Data Structures | - String Manipulation - Sets - Dictionaries - Lists and List Operations - Tuples |
| Topic 6: Control Structures | - Conditional Statements (if, elif, else) - Loops (for, while) - Nested Conditionals and Loops - Loop Control (break, continue, pass) |
| Topic 7: Functions | - Scope (local and global) - Return Values - Parameters and Arguments - Recursion - Function Definition and Call |
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질문 # 58
Complete the function get_second_item(items) that takes a list and returns the second item. Assume the input is always a list containing at least two elements.
For example, get_second_item([10, 20, 30]) should return 20.
def get_second_item(items):
# TODO: Return the second item from the list
pass
정답：
설명：
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: Python list indexing starts at 0.
Step 2: The first item is at index 0.
Step 3: The second item is at index 1.
Step 4: Return the value at index 1.
Correct code:
def get_second_item(items):
return items[1]
Example:
print(get_second_item([10, 20, 30]))
Output:
20
질문 # 59
What happens when theRunbutton is clicked in a Python development environment?
정답：D
설명：
In a Python development environment, clicking theRunbutton generally executes the currently open Python script or selected code.
For example, if the current script contains:
print( " Hello, Python! " )
clickingRunexecutes the script and displays the output:
Hello, Python!
In Python's IDLE environment, theRun Modulecommand runs the current module. The Python documentation describes IDLE as Python's editor and shell and includes a Run menu for running Python code.
The Run button does not simply open a file browser, save the file without execution, or convert Python code into another programming language.
Therefore, the correct answer isB. The currently open Python script is executed.
질문 # 60
A program needs to display only positive, non-zero numbers from a list containing a mixture of integer and decimal values. Which conditional statement should be placed inside the loop?
정답：A
설명：
To display only positive, non-zero numbers, the condition should check whether each number is greater than 0.
Correct condition:
if number > 0:
Example:
numbers = [-2, 0, 1, 3.5, -4.2]
for number in numbers:
if number > 0:
print(number)
Output:
1
3.5
The condition number > 0 works for both integers and decimal values. The condition number > = 1 would incorrectly exclude positive decimal values such as 0.5.
Therefore, the correct answer isA. if number > 0:.
질문 # 61
Which Python data structure allows duplicate values and supports methods like append() and remove()?
정답：C
설명：
A list is a Python data structure that can store multiple values. Lists can contain duplicate values, and they support methods such as append() and remove().
Example:
fruits = [ " apple " , " banana " , " apple " ]
fruits.append( " orange " )
fruits.remove( " banana " )
print(fruits)
Output:
[ ' apple ' , ' apple ' , ' orange ' ]
The value " apple " appears more than once, showing that lists allow duplicates.
The official Python documentation lists list.append() as a method that adds an item to the end of a list and list.
remove() as a method that removes the first matching value from a list.
Therefore, the correct answer is C. List.
질문 # 62
What determines which lines of code are executed when the condition is true in a Python if statement?
정답：B
설명：
In Python, indentation determines which statements belong to an if block.
Example:
temperature = 30
if temperature > 25:
print( " It is warm. " )
print( " Drink water. " )
Both print() statements are executed when the condition is true because they share the same indentation level under the if statement.
Python does not use parentheses, semicolons, or square brackets to define the body of an if statement. It uses indentation.
Therefore, the correct answer isB. Lines that share the same indentation level.
질문 # 63
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