Python Concepts

What are the different data types available in Python?

• array

• double

• char

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

Explain the usage of if-else control structure in Python with an example.

• Example: x = 10 if x > 5: print('x is less than 5') else: print('x is greater than or equal to 5')

• Example: x = 10 if x < 5: print('x is less than 5') else: print('x is greater than or equal to 5')

• Example: x = 10 if x > 5: print('x is greater than 5') else: print('x is less than or equal to 5')

• Example: x = 5 if x > 5: print('x is greater than 5') else: print('x is less than or equal to 5')

How do you define a function in Python?

• def function_name(parameters):

• function_name(parameters)

• function_name(parameters):

• define function_name(parameters):

What is the purpose of modules in Python?

• Modules in Python are used for creating graphics

• Modules in Python are designed for debugging code

• Modules in Python are primarily used for data storage

• Modules in Python serve the purpose of organizing code into reusable and maintainable units.

How can you iterate over a list in Python?

• for item in my_list:

• for item in range(my_list):

• for i in range(len(my_list)):

• while item in my_list:

What is a dictionary in Python and how is it different from a list?

• A dictionary in Python is a collection of key-value pairs, where each key is unique. It is different from a list in that dictionaries are ordered collections of items accessed by index, while lists are unordered collections accessed by keys.

• A dictionary in Python is a collection of key-value pairs, where each key is unique. It is different from a list in that dictionaries are unordered collections accessed by keys, while lists are ordered collections of items accessed by index.

• A dictionary in Python is a collection of key-value pairs, where each key is unique. It is different from a list in that dictionaries are ordered collections of items accessed by keys, while lists are unordered collections accessed by index.

• A dictionary in Python is a collection of key-value pairs, where each key is unique. It is different from a list in that lists are ordered collections of items accessed by index, while dictionaries are unordered collections accessed by keys.

How can you manipulate strings in Python?

• By using built-in string methods like slicing, concatenation, formatting, etc.

• By using Python's built-in GUI tools

• By performing mathematical operations on strings

• By using external libraries not supported by Python

Explain the concept of variables in Python.

• Variables in Python are fixed and cannot be changed once assigned

• Variables in Python are not case-sensitive

• Variables in Python are declared using the 'print' keyword

• Variables in Python are created by assigning a value to them using the assignment operator (=). For example, 'x = 5' creates a variable 'x' with the value 5.

What is the difference between append() and extend() methods in Python lists?

• append() and extend() are used for removing elements from a list

• append() adds a single element, extend() adds multiple elements

• append() adds multiple elements, extend() adds a single element

• append() and extend() are the same method with different names

How can you access values in a dictionary using keys?

• my_dict[my_key]

• my_dict.key(my_value)

• my_dict(my_key)

• my_dict.get(my_key)