PCEP Type Conversion and Built-in Functions 3

Question 1

What does bool("") return in Python?

Accepted Answer

False

Answer

An empty string is falsy in Python, so bool("") returns False.

Question 2

What does bool("False") return in Python?

Accepted Answer

True

Answer

Any non-empty string is truthy in Python, so bool("False") returns True regardless of the string's content.

Question 3

What is the result of int(True) in Python?

Accepted Answer

1 (integer)

Answer

In Python, True is a subclass of int with the value 1, so int(True) returns 1.

Question 4

What does float(False) return in Python?

Accepted Answer

0.0 (float)

Answer

False has an integer value of 0, and float() converts that to 0.0.

Question 5

What does list(range(4)) produce in Python?

Accepted Answer

[0, 1, 2, 3]

Answer

list() converts the range object to a list; range(4) generates 0 through 3, giving [0, 1, 2, 3].

(PCEP) Certified Entry-Level Python Programmer Practice Test