Mastering Python Concepts

What is the output of print(2 ** 3)?

• 9

• 6

• 4

• 8

How do you create a list in Python?

• You create a list in Python using parentheses, e.g., my_list = (1, 2, 3).

• You create a list in Python by using the list() function, e.g., my_list = list(1, 2, 3).

• You create a list in Python using square brackets, e.g., my_list = [1, 2, 3].

• You create a list in Python using curly braces, e.g., my_list = {1, 2, 3}.

What keyword is used to define a function in Python?

• method

• define

• def

• function

What is the purpose of the 'self' parameter in class methods?

• The 'self' parameter is used to refer to the instance of the class in class methods.

• The 'self' parameter is used to define class variables.

• The 'self' parameter is used to create new classes.

• The 'self' parameter is a keyword for static methods.

How do you handle exceptions in Python?

• Use print statements to debug exceptions in Python.

• Use try-except blocks to handle exceptions in Python.

• Ignore exceptions and continue execution.

• Use if-else statements to handle exceptions in Python.

What is a lambda function?

• A lambda function is an anonymous function defined with the lambda keyword in Python.

• A lambda function is a type of loop in Python.

• A lambda function is a method for defining classes in Python.

• A lambda function is a built-in data type in Python.

What is the difference between a list and a tuple?

• A list is immutable and defined with [], while a tuple is mutable and defined with ().

• A list is defined with {}, while a tuple is defined with []

• A list can only contain numbers, while a tuple can contain any data type.

• A list is mutable and defined with [], while a tuple is immutable and defined with ().

How can you read a file in Python?

• Use read('filename') to open a file.

• open('filename') without mode to read a file.

• Use file.read('filename') to access file contents.

• Use open('filename', 'r') to read a file.

What is the use of the 'with' statement?

• The 'with' statement is used to create loops.

• The 'with' statement is used for resource management and exception handling.

• The 'with' statement is used for variable declaration.

• The 'with' statement is used for defining functions.

What is the purpose of the 'if __name__ == "__main__":' statement?

• To handle exceptions in the code.

• To allow code to run only when the script is executed directly, not when imported.

• To define global variables for the entire script.

• To ensure the script runs faster when imported.