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| Section | Objectives |
|---|---|
| Topic 1: Control Structures | - Loops (for, while) - Conditional Statements (if, elif, else) - Loop Control (break, continue, pass) - Nested Conditionals and Loops |
| Topic 2: File Handling and Exceptions | - Custom Exceptions - Exception Handling (try, except, finally) - Reading and Writing Files |
| Topic 3: Python Fundamentals | - Type Conversion - Variables and Data Types - Operators and Expressions - Input/Output Operations |
| Topic 4: Object-Oriented Programming | - Attributes and Methods - Constructors (__init__) - Classes and Objects - Encapsulation - Inheritance |
| Topic 5: Functions | - Scope (local and global) - Return Values - Parameters and Arguments - Recursion - Function Definition and Call |
| Topic 6: Testing and Debugging | - Unit Testing Concepts - Trace Errors - Debugging Techniques |
| Topic 7: Data Structures | - Tuples - Dictionaries - String Manipulation - Lists and List Operations - Sets |
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NEW QUESTION # 18
What does the string method ' ' .join() return when applied to the list [ ' Hello ' , ' World ' ]?
Answer: A
NEW QUESTION # 19
Write a complete function word_count(text) that counts and returns the number of words in the given text.
Words are separated by spaces.
For example, word_count( " Hello world Python " ) should return 3.
def word_count(text):
# TODO: Count and return the number of words in text
pass
Answer:
Explanation:
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: The function receives one string parameter named text.
Step 2: Since words are separated by spaces, use the .split() method to split the string into a list of words.
Step 3: Use len() to count how many items are in the list.
Step 4: Return that count.
Correct code:
def word_count(text):
return len(text.split())
Example:
print(word_count( " Hello world Python " ))
Output:
3
NEW QUESTION # 20
Complete the function get_dict_keys(data) that takes a dictionary and returns a list of all its keys.
For example, get_dict_keys({ " name " : " John " , " age " : 25}) should return [ " name " , " age " ].
def get_dict_keys(data):
# TODO: Return a list of all dictionary keys
pass
Answer:
Explanation:
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: A dictionary stores data as key-value pairs.
Step 2: The .keys() method returns the dictionary's keys.
Step 3: To return the keys as a list, use list(data.keys()).
Correct code:
def get_dict_keys(data):
return list(data.keys())
Example:
print(get_dict_keys({ " name " : " John " , " age " : 25}))
Output:
[ ' name ' , ' age ' ]
NEW QUESTION # 21
Which components are required in every Python while loop?
Answer: D
Explanation:
A Python while loop needs a condition and an indented code block.
Example:
count = 1
while count < = 3:
print(count)
count += 1
The condition is count < = 3. The indented block contains the code that runs while the condition is true.
Python's compound statement documentation includes while as a control-flow statement.
Therefore, the correct answer isA. A condition and an indented code block.
NEW QUESTION # 22
Which index position is returned when the string method .find( ' python ' ) is applied to the string ' learning python programming ' ?
Answer: B
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 # 23
......
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