PCAP Standard Library and Built-ins 2

Question 1

Which module is used to work with regular expressions in Python?

Accepted Answer

re

Answer

The `re` module provides regular expression matching operations.

Question 2

What does `re.match()` do differently from `re.search()`?

Accepted Answer

match() only matches at the beginning of the string

Answer

`re.match()` only looks at the beginning of the string, while `re.search()` scans the entire string.

Question 3

What does `sys.argv` contain?

Accepted Answer

Command-line arguments as a list

Answer

`sys.argv` is a list where `sys.argv[0]` is the script name and the rest are command-line arguments.

Question 4

Which built-in function converts a string to an integer?

Accepted Answer

int()

Answer

`int()` converts a string or number to an integer, raising `ValueError` for invalid input.

Question 5

What does `dir(obj)` return?

Accepted Answer

A list of valid attributes and methods of the object

Answer

`dir()` returns an alphabetically sorted list of names in the current scope or object's attributes.

PCAP - Certified Associate in Python Programming Practice Test