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| Section | Objectives |
|---|---|
| File Handling and Exceptions | - Reading and Writing Files - Exception Handling (try, except, finally) - Custom Exceptions |
| Control Structures | - Nested Conditionals and Loops - Conditional Statements (if, elif, else) - Loops (for, while) - Loop Control (break, continue, pass) |
| Python Fundamentals | - Type Conversion - Variables and Data Types - Input/Output Operations - Operators and Expressions |
| Testing and Debugging | - Debugging Techniques - Trace Errors - Unit Testing Concepts |
| Functions | - Return Values - Scope (local and global) - Parameters and Arguments - Recursion - Function Definition and Call |
| Data Structures | - String Manipulation - Lists and List Operations - Sets - Tuples - Dictionaries |
| Object-Oriented Programming | - Inheritance - Classes and Objects - Attributes and Methods - Constructors (__init__) - Encapsulation |
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NEW QUESTION # 53
What distinguishes a terminal-based Python environment from other development environments?
Answer: D
Explanation:
A terminal-based Python environment uses atext-based command line interface. In this environment, the user types commands directly into a terminal or command prompt.
For example, a user may start Python by typing:
python
When Python is started from a terminal, the interpreter can run in interactive mode, where it displays prompts such as > > > and waits for the user to enter Python commands. The official Python documentation explains that when commands are read from a terminal, the interpreter is in interactive mode.
A terminal-based environment is not mainly identified by graphical user interface elements, internet connectivity, or automatic file saving.
Therefore, the correct answer isC. Text-based command line interface.
NEW QUESTION # 54
What happens when the command python is entered in a terminal without a filename?
Answer: B
Explanation:
When the command python is entered in a terminal without a filename, Python starts aninteractive Python session, also called interactive mode.
In interactive mode, Python displays the primary prompt:
> > >
The user can then type Python statements directly, such as:
> > > 2 + 3
5
The official Python documentation explains that when commands are read from a terminal, the interpreter is in interactive mode and prompts for the next command.
Python does not automatically run the most recent file, open a file browser, or necessarily display an error when started this way.
Therefore, the correct answer isC. An interactive Python session starts.
NEW QUESTION # 55
Which terminal command is used to navigate to a different directory before running a Python script?
Answer: A
Explanation:
The command cd means "change directory." It is used in a terminal to move from one folder to another.
Example:
cd Desktop
After navigating to the correct folder, a Python script can be run with a command such as:
python script.py
Therefore, the correct answer isC. cd.
NEW QUESTION # 56
Write a complete function calculate_discount(price, discount_percent) that calculates and returns the final price after applying a discount percentage.
For example, calculate_discount(75, 20) should return 60.0.
def calculate_discount(price, discount_percent):
# TODO: Calculate and return the final price after discount
pass
Answer:
Explanation:
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: The function receives the original price and the discount_percent.
Step 2: Convert the discount percentage into a decimal by dividing by 100.
Step 3: Subtract the discount from 1 to find the remaining price percentage.
Step 4: Multiply the original price by the remaining percentage.
Correct code:
def calculate_discount(price, discount_percent):
return price * (1 - discount_percent / 100)
Example:
print(calculate_discount(75, 20))
Output:
60.0
NEW QUESTION # 57
Write a complete function convert_temperature(celsius) that converts Celsius to Fahrenheit using the formula:
F = C * 9/5 + 32.
For example, convert_temperature(0) should return 32.0.
def convert_temperature(celsius):
# TODO: Convert Celsius to Fahrenheit using F = C * 9/5 + 32
pass
Answer:
Explanation:
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: The function receives one parameter named celsius.
Step 2: Use the formula:
F = C * 9 / 5 + 32
Step 3: Return the converted Fahrenheit value.
Correct code:
def convert_temperature(celsius):
return celsius * 9 / 5 + 32
Example:
print(convert_temperature(0))
Output:
32.0
NEW QUESTION # 58
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