Regular Expressions in Python

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What is the output of the following code:

import re
result = re.sub(r's', '-', 'This is a test.')
print(result)

A) This-is-a-test. B) An error will occur C) This--is--a--test. D) This- is a test.

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What will be the output of the following Python code?

sentence = 'we are humans'
matched = re.match(r'(.*) (.*?) (.*)', sentence)
print(matched.group())

A) ('we', 'are', 'humans') B) (we, are, humans) C) ('we', 'humans') D) 'we are humans'

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Which of the following functions does not accept any argument?

A) re.purge B) re.compile C) re.findall D) re.match

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

How can you match either of two patterns in regular expressions using the | operator?

A) By using `pattern1 B) pattern2` C) By using pattern1,pattern2 D) By using pattern1/pattern2

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What is the purpose of the re.search() function in Python?

A) It searches for a match anywhere in the string B) It converts strings to regular expressions C) It finds all occurrences of a pattern in a string D) It checks if a string contains a specific character

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What will be the output of the following Python code?

re.findall('good', 'good is good')
re.findall('good', 'bad is good')

A) [‘good’, ‘good’]
[‘good’] B) (‘good’, ‘good’)
(good) C) (‘good’)
(‘good’) D) [‘good’]
[‘good’]

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

How can you match the end of a string using regular expressions?

A) By using the $ symbol B) By using the end keyword C) By using the last keyword D) By using the terminate keyword

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What will be the output of the following Python code?

re.fullmatch('hello', 'hello world')

A) No output B) [] C) <_sre.SRE_Match object; span=(0, 5), match='hello'> D) Error

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What will be the output of the following Python code?

a=re.compile('[0-9]+')
a.findall('7 apples and 3 mangoes')

A) ['apples' 'and' 'mangoes'] B) (7, 4) C) ['7', '4'] D) Error

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The function of re.match is . . . . . . . .

A) Error B) Matches a pattern anywhere in the string C) Matches a pattern at the end of the string D) Matches a pattern at the start of the string

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

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