Fundamentals of Python Programming

What are the basic data types in Python?

• int, float, str, bool, list, tuple, dict

• int, float, str, array

• bool, dict, string, number

• char, float, set, list

How do you declare a variable in Python?

• let variable_name = value

• var variable_name = value

• variable_name : value

• You declare a variable in Python by using the syntax: variable_name = value.

What is the purpose of an if statement in Python?

• To repeat code multiple times.

• To define a function in Python.

• To create a loop for iteration.

• To execute code conditionally based on a boolean expression.

Explain the use of for loops in Python.

• For loops can only iterate over numbers in Python.

• For loops in Python are used to create classes.

• For loops in Python are used to define functions.

• For loops in Python allow iteration over sequences and execute a block of code for each item.

How do you read a file in Python?

• Use 'readfile("filename.txt")' to read a file in Python.

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

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

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

What is the difference between 'read' and 'readlines' methods?

• The 'read' method reads a file line by line; 'readlines' reads the entire file at once.

• The 'read' method can only be used on text files; 'readlines' can be used on binary files.

• Both 'read' and 'readlines' return the same type of data.

• The 'read' method returns a single string; 'readlines' returns a list of strings.

What is exception handling in Python?

• Exception handling is done using 'if' statements in Python.

• Exception handling in Python is a way to manage errors using 'try' and 'except' blocks.

• Exception handling in Python is only for syntax errors.

• Python does not support exception handling.

How do you raise an exception in Python?

• throw ExceptionType('Error message')

• raise 'Error message'

• raise ExceptionType

• raise ExceptionType('Error message')

What are lists and tuples in Python?

• Tuples can be modified after creation, while lists cannot.

• Both lists and tuples are mutable sequences in Python.

• Lists are mutable sequences, while tuples are immutable sequences in Python.

• Lists are immutable sequences, while tuples are mutable sequences in Python.

How do you access elements in a dictionary?

• Access elements using dictionary::key.

• Use dictionary[key] or dictionary.get(key) to access elements.

• Use dictionary.key to access elements.

• Call dictionary.access(key) to retrieve values.