Mastering Python Basics

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

• 8

• 4

• 9

• 6

How do you create a list in Python?

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

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

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

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

What keyword is used to define a function in Python?

• def

• method

• function

• define

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

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

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

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

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

How can you handle exceptions in Python?

• Use try-except blocks to handle exceptions.

• Ignore exceptions and continue execution.

• Use if-else statements to handle exceptions.

• Log exceptions without handling them.

What is the difference between a list and a tuple?

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

• A list is a type of dictionary, while a tuple is a type of set.

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

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

How do you read a file in Python?

• Use 'with open("filename.txt", "r") as file: content = file.read()' to read a file in Python.

• Read a file by calling 'file.read()' directly without opening it.

• Use 'import file' to access the contents of a file in Python.

• Use 'open(file.txt)' to read a file in Python.

What does the 'len()' function do?

• It calculates the sum of an object.

• It returns the length of an object.

• It converts an object to a string.

• It checks if an object is empty.

How can you import a module in Python?

• You can import a module by typing 'include module_name'

• Import modules using 'load module_name'

• Use the 'require' statement, e.g., 'require(module_name)'

• Use the 'import' statement, e.g., 'import module_name'.

What is a dictionary in Python?

• A dictionary is a collection of ordered pairs in Python.

• A dictionary in Python is a single value.

• A dictionary in Python is a collection of key-value pairs.

• A dictionary is a type of list in Python.