30 Questions
What is the primary characteristic of strings in Python?
They are immutable
Which of the following operations can be performed on a list?
All of the above
What is the purpose of slicing in a list?
To extract a subset of elements from the list
What is the correct way to sort a list in descending order?
list.sort(reverse=True)
How do you insert an element at a specific index in a list?
list.insert(index, element)
What is the result of concatenating two lists together?
A new list with all elements from both lists
What is the purpose of using the 'end' parameter in Python's print function?
To change the default newline character to a custom character
What is the default value of the 'end' parameter in Python's print function?
' '
What is the purpose of using formatted output in Python?
To simplify the print statement by using variables inside curly braces
What is the symbol used to start a comment in Python?
What is the advantage of using comments in Python code?
To make the code more readable and understandable
What is the difference between the two print statements: print('Hello', end=' ') and print('Hello', end='\n')?
The first one prints 'Hello' on the same line, while the second one prints 'Hello' on a new line
What is the purpose of a regular expression?
To match or find other strings or sets of strings
Which Python package is used to work with regular expressions?
re
What does the regular expression pattern \d match?
Digits
What is the opposite of the regular expression pattern \w?
\W
What is the purpose of the ^ metacharacter in regular expressions?
Matches the beginning of a line
What is the output of the following Python program: st = 'Hello World'; print(st.upper())?
HELLO WORLD
What happens to the previous data in a file when new data is written to it?
The previous data gets erased and replaced with the new data
What method is used to write a single string to a text file?
write()
What mode should a file be opened in to append data to it?
'a' mode
What does the tell() method do in a file?
Returns the current position in the file
What is the purpose of the seek() method in a file?
To change the current file position
What is the purpose of the writelines() method?
To write a list of strings to a file
What does the seek() method's second argument specify?
The reference position in the file
What is the purpose of the tell() method in Python?
To get the current file position
What is the result of the following code: os.rename('test1.txt', 'test2.txt')?
The file 'test1.txt' is renamed to 'test2.txt'
What is the purpose of the remove() method in Python?
To delete a file
What is the purpose of the function input_stats as described in the exercise?
To report the longest line in the file
What happens when the seek() method is called with the arguments (0, 0)?
The file position is moved to the beginning of the file
This quiz tests your understanding of input and output operations in Python, including formatted output and printing on the same line.
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