Python RegEx

What is a RegEx used for in programming?

• To format strings in a specific way

• To encrypt and decrypt data

• To generate random strings

• To check if a string contains the specified search pattern

Which module in Python is used to work with Regular Expressions?

• os

• re

• math

• json

What does the findall() function in Python's re module do?

• Returns a list containing all matches

• Replaces one or many matches with a string

• Searches for the first white-space character in the string

• Splits the string at each match

What character signifies the start of a string in RegEx?

• *

• $

• ^

• .

Which special sequence is used to find a digit in a string with RegEx?

• \d

• \s

• \D

• \w

What does the RegEx metacharacter '.' match?

• A non-digit character

• A whitespace character

• A digit

• Any character except the newline character

Which function is used to search for a match in a string, returning a Match object if there is a match?

• split()

• findall()

• search()

• sub()

What does the '\b' special sequence in RegEx signify?

• Any whitespace character

• A non-word boundary

• A match at the beginning or end of a word

• A digit

In RegEx, what does the '+' metacharacter mean?

• Exactly one occurrence

• Zero or one occurrence

• One or more occurrences

• Zero or more occurrences

Which method returns a list where the string has been split at each match?

• sub()

• findall()

• search()

• split()