EDA Python - 15-1List-dictionary_Comprehensions

The video tutorial explains list and dictionary comprehensions in Python, highlighting their syntax and usage. It covers basic list comprehensions, adding conditions, using nested loops, and creating dictionary comprehensions. These techniques are considered pythonic and are frequently used in Python programming.

What is the basic structure of a list comprehension in Python?

• Parentheses containing a for loop and an optional condition

• Angle brackets containing a for loop and an optional condition

• Square brackets containing a for loop and an optional condition

• Curly brackets containing a for loop and an optional condition

How can you filter elements in a list comprehension?

• By using a separate function

• By using a dictionary comprehension

• By adding a condition after the for loop

• By using a while loop

What is the result of the list comprehension: [i**2 for i in range(1, 15) if i % 2 == 0]?

• A list of numbers from 1 to 14

• A list of numbers from 1 to 15

• A list of odd numbers squared from 1 to 14

• A list of even numbers squared from 1 to 14

What does a nested list comprehension allow you to do?

• Create a dictionary from a list

• Create a list of lists

• Iterate over multiple ranges simultaneously

• Filter elements based on multiple conditions

How do you define a dictionary comprehension in Python?

• Using curly brackets with a key-value pair

• Using parentheses with a key-value pair

• Using angle brackets with a key-value pair

• Using square brackets with a key-value pair