Python Fundamentals

What is the difference between a variable and a constant in Python?

• A variable can only store integers, while a constant can store any data type in Python.

• A variable is a data type, while a constant is a function in Python.

• A variable is defined using 'const', while a constant is defined using 'var' in Python.

• A variable can be reassigned, while a constant's value cannot be changed in Python.

How do you declare a variable in Python?

• declare variable_name

• variable = value

• value = variable_name

• variable_name = value

What are the basic data types in Python?

• array

• char

• float

• integer, float, string, boolean, list, tuple, dictionary, None

What is the syntax for an if statement in Python?

• if (condition):

• if condition:

• if condition {

• if condition then:

How do you write an if-else statement in Python?

• else:

• if condition:

• if condition: # code block to execute if condition is true else: # code block to execute if condition is false

• if condition:

What is the purpose of a for loop in Python?

• To perform mathematical calculations

• To iterate over a sequence and execute a block of code for each item in the sequence.

• To create classes and objects

• To handle user input

How do you iterate over a list in Python?

• while item in my_list:

• for i in range(len(my_list)):

• foreach item in my_list:

• for item in my_list:

What is the keyword used to define a function in Python?

• function

• def

• func

• define

What is the difference between parameters and arguments in a function?

• Parameters are passed to the function, while arguments are defined in the function signature.

• Parameters are defined in the function signature, while arguments are the actual values passed to the function during its invocation.

• Parameters are values passed to the function, while arguments are placeholders in the function signature.

• Parameters are used for function invocation, while arguments are used for function definition.

How do you import a module in Python?

• from math import *

• include math

• import math

• use math