Python In Practice - 15 Projects to Master Python - all( )

The video tutorial explains the 'all' function in Python, which returns a Boolean value based on the truthiness of elements in an iterable. It covers how the function works with lists, strings, and dictionaries, highlighting that 'all' returns True if all elements are true or if the iterable is empty. Examples demonstrate the function's behavior with different data types, emphasizing its utility in conditional statements as a replacement for the 'and' keyword. The tutorial concludes with practical applications of the 'all' function in programming.

What does the 'all' function return when all elements in a list are truthy?

• False

• None

• An error

• True

How does the 'all' function treat a non-empty string?

• As a false value

• As a true value

• As an error

• As a None value

What will the 'all' function return for an empty list?

• False

• True

• None

• An error

When does the 'all' function return False for a dictionary?

• When the dictionary is empty

• When all values are zero

• When all keys are truthy

• When there is a false key

What does the 'all' function check in a dictionary?

• The data type of keys

• The length of the dictionary

• The truthiness of keys

• The truthiness of values