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| Section | Objectives |
|---|---|
| Topic 1: Functions and Modularity | - Modules and imports - Function definition and scope |
| Topic 2: Python Programming Fundamentals | - Variables and data types - Syntax and basic structure - Operators and expressions |
| Topic 3: Debugging and Testing Basics | - Basic testing concepts - Error identification and correction |
| Topic 4: Introduction to Object-Oriented Programming | - Basic OOP concepts - Classes and objects |
| Topic 5: Control Flow | - Loops (for, while) - Conditional statements (if / elif / else) |
| Topic 6: Data Structures | - Lists, tuples, dictionaries - Basic data manipulation |
| Topic 7: File Handling and Exceptions | - Reading and writing files - Exception handling (try/except) |
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NEW QUESTION # 36
Which type of loop repeatedly checks a condition to determine whether to continue?
Answer: A
Explanation:
Awhile looprepeatedly executes a block of code as long as its condition remains true.
Example:
count = 1
while count < = 3:
print(count)
count += 1
In this example, Python checks the condition count < = 3 before each loop iteration. If the condition is true, the loop continues. When the condition becomes false, the loop stops.
A for loop is usually used to iterate over a sequence, such as a list, string, or range. Python does not have a built-in repeat loop construct.
Therefore, the correct answer isB. while loop.
NEW QUESTION # 37
In the code for item in my_list:, what does item represent?
Answer: C
Explanation:
In the loop:
for item in my_list:
print(item)
item represents the current element from my_list during each loop iteration.
For example:
my_list = [ " apple " , " banana " ]
for item in my_list:
print(item)
The loop first processes " apple " , then " banana " . Python's documentation explains that a for statement iterates over the items of a sequence in order.
Therefore, the correct answer isB. The current element being processed.
NEW QUESTION # 38
A dictionary prices = { ' apple ' : 1.50, ' banana ' : 0.75, ' orange ' : 2.00} needs to have all values increased by
0.25. Which code correctly accomplishes this task?
Answer: B
Explanation:
In Python, iterating directly over a dictionary gives itskeys. In this dictionary, the keys are:
' apple '
' banana '
' orange '
To update each price, the program can loop through each key and use that key to access and change the corresponding value.
Correct code:
prices = { ' apple ' : 1.50, ' banana ' : 0.75, ' orange ' : 2.00}
for item in prices:
prices[item] = prices[ item] + 0.25
print(prices)
Output:
{ ' apple ' : 1.75, ' banana ' : 1.0, ' orange ' : 2.25}
Option B is incorrect because value actually receives each dictionary key, not each dictionary value. Also, assigning to value would not update the dictionary.
Option C is incorrect because item is not defined, and the loop structure is invalid for this task.
NEW QUESTION # 39
Complete the function double_number(num) that takes one number parameter and returns double that number.
For example, double_number(5) should return 10.
def double_number(num):
# TODO: Return double the input number
# Example: double_number(5) should return 10
pass
Answer:
Explanation:
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: The function receives one parameter named num.
Step 2: To double a number, multiply it by 2.
Step 3: The function should return the result using the return statement.
Correct code:
def double_number(num):
return num * 2
Example:
print(double_number(5))
Output:
10
NEW QUESTION # 40
Complete the function format_name(first, last) that takes a first name and last name and returns them combined as " last, first " .
For example, format_name( " John " , " Smith " ) should return " Smith, John " .
def format_name(first, last):
# TODO: Return the name in " last, first " format
pass
Answer:
Explanation:
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: The function receives two string parameters: first and last.
Step 2: The required format is the last name first, followed by a comma, a space, and then the first name.
Step 3: Use string concatenation to combine the values correctly.
Correct code:
def format_name(first, last):
return last + " , " + first
Example:
print(format_name( " John " , " Smith " ))
Output:
Smith, John
NEW QUESTION # 41
......
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