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| Section | Objectives |
|---|---|
| Topic 1: Functions | - Return Values - Recursion - Parameters and Arguments - Scope (local and global) - Function Definition and Call |
| Topic 2: Python Fundamentals | - Variables and Data Types - Operators and Expressions - Type Conversion - Input/Output Operations |
| Topic 3: Data Structures | - Sets - Lists and List Operations - Tuples - Dictionaries - String Manipulation |
| Topic 4: Object-Oriented Programming | - Classes and Objects - Encapsulation - Inheritance - Attributes and Methods - Constructors (__init__) |
| Topic 5: Testing and Debugging | - Trace Errors - Debugging Techniques - Unit Testing Concepts |
| Topic 6: Control Structures | - Loop Control (break, continue, pass) - Conditional Statements (if, elif, else) - Nested Conditionals and Loops - Loops (for, while) |
| Topic 7: File Handling and Exceptions | - Custom Exceptions - Exception Handling (try, except, finally) - Reading and Writing Files |
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NEW QUESTION # 56
Which index position is returned when the string method .find( ' python ' ) is applied to the string ' learning python programming ' ?
Answer: D
Explanation:
The .find() method returns the lowest index where the searched substring is found.
Example:
" learning python programming " .find( " python " )
Output:
9
Indexing starts at 0 in Python. In the string ' learning python programming ' , the word ' python ' begins at index 9. Python's built-in types documentation describes str.find() as returning the lowest index where the substring is found.
Therefore, the correct answer isB. 9.
NEW QUESTION # 57
What does the string method ' ' .join() return when applied to the list [ ' Hello ' , ' World ' ]?
Answer: D
NEW QUESTION # 58
Fix the indexing error in this function that should return the last character of a string.
def get_last_character(text):
return text[len(text)]
Answer:
Explanation:
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: Python string indexing starts at 0.
Step 2: The last valid index of a string is len(text) - 1, not len(text).
Step 3: Python also allows negative indexing, where -1 means the last character.
Step 4: Replace text[len(text)] with text[-1] .
Correct code:
def get_last_character(text):
return text[-1]
Example:
print(get_last_character( " Python " ))
Output:
n
NEW QUESTION # 59
Write a complete function calculate_average(grades) that takes a list of grades and returns the average as a float.
For example, calculate_average([85, 92, 78]) should return 85.0.
def calculate_average(grades):
# TODO: Calculate and return the average grade as a float
pass
Answer:
Explanation:
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: The function receives one parameter named grades, which is a list of numbers.
Step 2: Use sum(grades) to add all the grades together.
Step 3: Use len(grades) to count how many grades are in the list.
Step 4: Divide the total by the number of grades.
Correct code:
def calculate_average(grades):
return sum(grades) / len(grades)
Example:
print(calculate_average([85, 92, 78]))
Output:
85.0
NEW QUESTION # 60
Which punctuation mark must appear at the end of an if statement line?
Answer: A
Explanation:
In Python, an if statement line must end with a colon.
Example:
age = 18
if age > = 18:
print( " Adult " )
The colon : tells Python that an indented block of code follows. That indented block contains the statements that should run when the condition is true.
A semicolon, period, or comma is not used to begin the body of an if statement in Python.
Therefore, the correct answer is B. : colon.
NEW QUESTION # 61
......
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