Regular Expressions In Python — Part 2 MCQs with Explanations

Zero is the correct answer to “In the functions re.search.start(group) and re.search.end(group), if the argument groups not specified, it defaults to . . . . . . . .”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

A set of characters enclosed in square brackets that matches any character in the set is the correct answer to “What is a character class in regular expressions”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

['M', 'a', 't', 'hs is a difficult subject'] is the correct answer to “What will be the output of the following Python code? re.split(r'(a)(t)', 'Maths is a difficult subject')”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

['Hello', 'WORLD'] is the correct answer to “What will be the output of the following code: import re pattern = re.compile(r'b[A-Z]+b') result = pattern.findall('Hello, WORLD!') print(result)”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

‘Hello Hello Hello’ is the correct answer to “What will be the output of the following Python code? n = re.sub(r'\w+', 'Hello', 'Cats and dogs')”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

It replaces occurrences of a pattern with a specified string is the correct answer to “What is the purpose of the re.sub() function in Python”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

It makes the ^ and $ characters match the beginning and end of each line is the correct answer to “What is the purpose of the re.MULTILINE flag in Python”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

string, tuple is the correct answer to “The difference between the functions re.sub and re.subn is that re.sub returns a . . . . . . . . whereas re.subn returns a . . . . . . . .”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

[", 'bai*'] is the correct answer to “What will be the output of the following Python code? re.split('mum', 'mumbai*', 1)”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

not at the beginning or end of a word is the correct answer to “The special character B matches the empty string, but only when it is . . . . . . . .”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

re.compile.groupindex is the correct answer to “Which of the following functions returns a dictionary mapping group names to group numbers”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

['0', '3B6'] is the correct answer to “What will be the output of the following Python code? re.split('[a-c]', '0a3B6', re.I)”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

'123abc: 666xyz: lmn-11 77def:' is the correct answer to “What will be the output of the following Python code? import re s = 'abc123 xyz666 lmn-11 def77' re.sub(r'\b([a-z]+)(\d+)', r'\2\1:', s)”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

'pq+' matches 'p' is the correct answer to “Which of the following statements regarding the output of the function re.match is incorrect”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

By using the sub() function from the re module is the correct answer to “How can you replace a matched pattern with a new string using regular expressions in Python”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

re.X is the correct answer to “Which of the following pattern matching modifiers permits whitespace and comments inside the regular expression”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

By using the * symbol after the pattern is the correct answer to “How can you match zero or more occurrences of a pattern in regular expressions”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

[", 'n1', '3.1, ', 'n2', '5, ', 'n3', '4.565'] is the correct answer to “What will be the output of the following Python code? re.split(r'(n\d)=', 'n1=3.1, n2=5, n3=4.565')”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

re.L re.LOWERCASE is the correct answer to “Choose the option wherein the two choices do not refer to the same option.”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

['25', '300'] is the correct answer to “What will be the output of the following code: import re result = re.findall(r'd{1,3}', 'There are 25 apples and 300 oranges.') print(result)”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

This-is-a-test. is the correct answer to “What is the output of the following code: import re result = re.sub(r's', '-', 'This is a test.') print(result)”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

'we are humans' is the correct answer to “What will be the output of the following Python code? sentence = 'we are humans' matched = re.match(r'(.*) (.*?) (.*)', sentence) print(matched.group())”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

re.purge is the correct answer to “Which of the following functions does not accept any argument”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

By using `pattern1 is the correct answer to “How can you match either of two patterns in regular expressions using the | operator”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

It searches for a match anywhere in the string is the correct answer to “What is the purpose of the re.search() function in Python”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

[‘good’, ‘good’] [‘good’] is the correct answer to “What will be the output of the following Python code? re.findall('good', 'good is good') re.findall('good', 'bad is good')”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

By using the $ symbol is the correct answer to “How can you match the end of a string using regular expressions”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

No output is the correct answer to “What will be the output of the following Python code? re.fullmatch('hello', 'hello world')”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

['7', '4'] is the correct answer to “What will be the output of the following Python code? a=re.compile('[0-9]+') a.findall('7 apples and 3 mangoes')”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

Matches a pattern at the start of the string is the correct answer to “The function of re.match is . . . . . . . .”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

No output A new day is the correct answer to “What will be the output of the following Python code? import re s = "A new day" m = re.match(r'(.*)(.*?)', s) print(m.group(2)) print(m.group(0))”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

welcome home is the correct answer to “What will be the output of the following Python code? s = 'welcome home' m = re.match(r'(.*)(.*?)', s) print(m.group())”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

[('5', 'apples'), ('3', 'oranges')] is the correct answer to “What is the output of the following code: import re pattern = re.compile(r'(d+)s(w+)') result = pattern.findall('There are 5 apples and 3 oranges.') print(result)”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

False is the correct answer to “The following Python code snippet results in an error. c=re.compile(r'(\d+)(\[A-Z]+)([a-z]+)') c.groupindex”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

Error is the correct answer to “What will be the output of the following Python code? a = re.compile('0-9') a.findall('3 trees')”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

True is the correct answer to “The output of the following two Python codes are the same. p = re.compile('hello') r = p.match('hello everyone') print(r.group(0)) r = re.match('hello', 'hello everyone') print(r.group(0))”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

re.compile(str) is the correct answer to “Which of the following functions creates a Python object”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

(?#...) is the correct answer to “Which of the following special characters represents a comment (that is, the contents of the parenthesis are simply ignores)”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

('we', 'are', 'humans') is the correct answer to “What will be the output of the following Python code? sentence = 'we are humans' matched = re.match(r'(.*) (.*?) (.*)', sentence) print(matched.groups())”. This question is standard in competitive examination syllabi for Regular Expressions In Python.

Z is the correct answer to “Which of the following special characters matches a pattern only at the end of the string”. This question is standard in competitive examination syllabi for Regular Expressions In Python.