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Python RegEx Module MCQ

⛪ Programming Language > Python Programming Language

Test your knowledge of Python's RegEx module with these multiple choice questions. Covering topics such as pattern matching, string manipulation, and more, these MCQs are a great way to brush up on your skills. Whether you're a beginner or an experienced Python developer, these questions will provide a challenge and help you improve your understanding of the RegEx module.

Python has a built-in package called ➲ Python RegEx Module MCQ - Quiz
Q 1: What will be the output after the following statements?
import re x = re.compile(r'\d\d\d-\d\d\d\d') y = x.search('The phone number is 444-4444') print(y.group())
A The phone number is 444-4444

B \d\d\d-\d\d\d\d

C 444-4444

D r'\d\d\d-\d\d\d\d'

C
Answer: C

444-4444
Q 2: What will be the output after the following statements?
import re x = re.compile(r'(\d\d\d)-(\d\d\d\d)') y = x.search('The phone number is 444-4444') print(y.group(2))
A The phone number is 444-4444

B 4444

C 444-4444

D 444

B
Answer: B

4444
Q 3: What will be the output after the following statements?
import re x = re.compile(r'(\d\d\d)-(\d\d\d\d)') y = x.search('The phone number is 444-4444') print(y.group(1))
A The phone number is 444-4444

B 4444

C 444-4444

D 444

D
Answer: D

444
Q 4: What will be the output after the following statements?
import re x = re.compile(r'(\d\d\d)-(\d\d\d\d)') y = x.search('The phone number is 444-4444') print(y.group(0))
A The phone number is 444-4444

B 4444

C 444-4444

D 444

C
Answer: C

444-4444
Q 5: What will be the output after the following statements?
import re x = re.compile(r'(\d\d\d)-(\d\d\d\d)') y = x.search('The phone number is 444-4444') print(y.groups())
A ('444', '4444')

B 4444

C 444-4444

D 444

A
Answer: A

('444', '4444')
Q 6: What will be the output after the following statements?
import re x = re.compile(r'($\d\d\d$)-(\d\d\d\d)') y = x.search('The phone number is (444)-4444') print(y.group(1))
A ('444', '4444')

B 444

C 444-4444

D (444)

D
Answer: D

(444)
Q 7: What will be the output after the following statements?
import re x = re.compile(r'Python 2|Python 3') y = x.search('Python 3 MCQ') print(y.group())
A Python 2|Python 3

B Python 2

C Python 3

D Python 3 MCQ

C
Answer: C

Python 3
Q 8: What will be the output after the following statements?
import re x = re.compile(r'Python 2|Python 3') y = x.search('Python 2.7') print(y.group())
A Python 2.7

B Python 2

C Python 3

D Python 2|Python 3

B
Answer: B

Python 2
Q 9: What will be the output after the following statements?
import re x = re.compile(r'day') y = x.search('Today is a nice day and a Sunday') print(y.group())
A day

B Today

C nice day

D Sunday

A
Answer: A

day
Q 10: What will be the output after the following statements?
import re x = re.compile(r'(Sun)?day') y = x.search('Today is a nice day and a Sunday') print(y.group())
A day

B Today

C nice day

D Sunday

A
Answer: A

day
Q 11: What will be the output after the following statements?
import re x = re.compile(r'(Sun|To)?day') y = x.search('Today is a nice day and a Sunday') print(y.group())
A day

B Today

C nice day

D Sunday

B
Answer: B

Today
Q 12: What will be the output after the following statements?
import re x = re.compile(r'(Sun)*day') y = x.search('Today is a nice day and a Sunday') print(y.group())
A nice day

B Today

C day

D Sunday

C
Answer: C

day
Q 13: What will be the output after the following statements?
import re x = re.compile(r'(Sun)+day') y = x.search('Today is a nice day and a Sunday') print(y.group())
A day

B Today

C nice day

D Sunday

D
Answer: D

Sunday
Q 14: What will be the output after the following statements?
import re x = re.compile(r'(Python){2}') y = x.search('PythonPythonPython') print(y.group())
A PythonPythonPython

B PythonPython

C Python

D Python 2

B
Answer: B

PythonPython
Q 15: What will be the output after the following statements?
import re x = re.compile(r'(Python){2,3}') y = x.search('PythonPythonPython') print(y.group())
A PythonPythonPython

B PythonPython

C Python

D Python 2

A
Answer: A

PythonPythonPython
Q 16: What will be the output after the following statements?
import re x = re.compile(r'(Python){1,3}?') y = x.search('PythonPythonPython') print(y.group())
A PythonPythonPython

B PythonPython

C Python

D Python 2

C
Answer: C

Python
Q 17: What will be the output after the following statements?
import re x = re.compile(r'day') y = x.findall('Today is a nice day and a Sunday') print(y)
A day

B Today

C ['day', 'day', 'day']

D ('day', 'day', 'day')

C
Answer: C

['day', 'day', 'day']
Q 18: What will be the output after the following statements?
import re x = re.compile(r'(Sun)?day') y = x.findall('Today is a nice day and a Sunday') print(y)
A ('day', 'day', 'day')

B ['', '', 'Sun']

C ['day', 'day', 'day']

D Sunday

B
Answer: B

['', '', 'Sun']
Q 19: What will be the output after the following statements?
import re x = re.compile(r'(Sun|To)?day') y = x.findall('Today is a nice day and a Sunday') print(y)
A ('day', 'day', 'day')

B ['', '', 'Sun']

C ['day', 'day', 'day']

D ['To', '', 'Sun']

D
Answer: D

['To', '', 'Sun']
Q 20: What will be the output after the following statements?
import re x = re.compile(r'(Sun)*day') y = x.findall('Today is a nice day and a Sunday') print(y)
A ('day', 'day', 'day')

B ['', '', 'Sun']

C ['day', 'day', 'day']

D ['To', '', 'Sun']

B
Answer: B

['', '', 'Sun']
Q 21: What will be the output after the following statements?
import re x = re.compile(r'(Sun)+day') y = x.findall('Today is a nice day and a Sunday') print(y)
A ['', '', 'Sun']

B ['Sun']

C ['day', 'day', 'day']

D ['To', '', 'Sun']

B
Answer: B

['Sun']
Q 22: What will be the output after the following statements?
import re x = re.compile(r'($\d\d\d$)-(\d\d\d\d)') y = x.findall('The phone number is (444)-4444') print(y)
A [('(444)', '4444')]

B [('444)', '4444']

C (('(444)', '4444'))

D ('444', '4444')

A
Answer: A

[('(444)', '4444')]
Q 23: What will be the output after the following statements?
import re x = re.compile(r'\d') y = x.findall('The phone number is (444)-4444') print(y)
A [('(444)', '4444')]

B '4', '4', '4', '4', '4', '4', '4'

C (('(444)', '4444'))

D ['4', '4', '4', '4', '4', '4', '4']

D
Answer: D

['4', '4', '4', '4', '4', '4', '4']
Q 24: What will be the output after the following statements?
import re x = re.compile(r'\D') y = x.findall('Python 3') print(y)
A ['Python', '3']

B ['P', 'y', 't', 'h', 'o', 'n', ' ', '3']

C ['P', 'y', 't', 'h', 'o', 'n', ' ']

D ['P', 'y', 't', 'h', 'o', 'n']

C
Answer: C

['P', 'y', 't', 'h', 'o', 'n', ' ']
Q 25: What will be the output after the following statements?
import re x = re.compile(r'\w') y = x.findall('Python_3') print(y)
A ['Python', '3']

B ['P', 'y', 't', 'h', 'o', 'n', '3']

C ['P', 'y', 't', 'h', 'o', 'n', ' ']

D ['P', 'y', 't', 'h', 'o', 'n', '_', '3']

D
Answer: D

['P', 'y', 't', 'h', 'o', 'n', '_', '3']
Q 26: What will be the output after the following statements?
import re x = re.compile(r'\W') y = x.findall('Python_3') print(y)
A ['Python', '3']

B []

C ['P', 'y', 't', 'h', 'o', 'n', ' ']

D [' ']

B
Answer: B

[]
Q 27: What will be the output after the following statements?
import re x = re.compile(r'\s') y = x.findall('Python 3') print(y)
A ['Python', '3']

B []

C ['P', 'y', 't', 'h', 'o', 'n', ' ']

D [' ']

D
Answer: D

[' ']
Q 28: What will be the output after the following statements?
import re x = re.compile(r'\S') y = x.findall('Python 3') print(y)
A ['P', 'y', 't', 'h', 'o', 'n', '3']

B []

C ['P', 'y', 't', 'h', 'o', 'n', ' ']

D [' ']

A
Answer: A

['P', 'y', 't', 'h', 'o', 'n', '3']
Q 29: What will be the output after the following statements?
import re x = re.compile(r'[0-9]') y = x.findall('Python 3') print(y)
A ['P', 'y', 't', 'h', 'o', 'n', '3']

B []

C ['3']

D [' ']

C
Answer: C

['3']
Q 30: What will be the output after the following statements?
import re x = re.compile(r'[ptPT]') y = x.findall('Python 3') print(y)
A ['P', 't', 'h', 'o', 'n']

B ['P', 't']

C []

D [' ']

B
Answer: B

['P', 't']
Q 31: What will be the output after the following statements?
import re x = re.compile(r'[p-t0-6]') y = x.findall('Python 3') print(y)
A ['P', 't', '3']

B ['P', 't']

C []

D ['t', '3']

D
Answer: D

['t', '3']
Q 32: What will be the output after the following statements?
import re x = re.compile(r'[D-S0-2]') y = x.findall('Python 3') print(y)
A ['P', 't', '3']

B ['P', 't']

C ['P']

D ['t', '3']

C
Answer: C

['P']
Q 33: What will be the output after the following statements?
import re x = re.compile(r'[^A-Za-z0-2]') y = x.findall('Python_3') print(y)
A ['_', '3']

B ['P', 't']

C [' ', '3']

D ['t', '3']

A
Answer: A

['_', '3']
Q 34: What will be the output after the following statements?
import re x = re.compile(r'^Py') y = x.search('Python_3') print(y.group())
A ['Py']

B Py

C ['P', 'y']

D ['P', 'y', '3']

B
Answer: B

Py
Q 35: What will be the output after the following statements?
import re x = re.compile(r'3$') print(x.search('Python_3') == None)
A ['3']

B Python_3

C True

D False

D
Answer: D

False
Q 36: What will be the output after the following statements?
import re x = re.compile(r'.day') y = x.findall('Today is a nice day and a Sunday') print(y)
A ['oday', 'nday']

B ['oday', ' day', 'nday']

C ['day', 'day', 'day']

D ['Today', ' day', 'Sunday']

B
Answer: B

['oday', ' day', 'nday']
Q 37: What will be the output after the following statements?
import re x = re.compile(r'(.*)day') y = x.findall('Today is a nice day and a Sunday') print(y)
A ['To']

B ['Today is a nice day and a Sunday']

C ['Today is a nice day and a Sun']

D ['Today is a nice day']

C
Answer: C

['Today is a nice day and a Sun']
Q 38: What will be the output after the following statements?
import re x = re.compile(r'(.*?)day') y = x.findall('Today is a nice day and a Sunday') print(y)
A ['To', ' is a nice ', ' and a Sun']

B ['Today is a nice day and a Sunday']

C ['Today is a nice day and a Sun']

D ['Today is a nice day']

A
Answer: A

['To', ' is a nice ', ' and a Sun']
Q 39: What will be the output after the following statements?
import re x = re.compile('.*') y = x.search("Today is a nice day.\n Let's go for a walk.\n We'll also go to the park.") print(y.group())
A Today is a nice day.\n Let's go for a walk.\n We'll also go to the park.

B Today is a nice day.\n Let's go for a walk.

C ['Today is a nice day.']

D Today is a nice day.

D
Answer: D

Today is a nice day.
Q 40: What will be the output after the following statements?
import re x = re.compile('.*', re.DOTALL) y = x.search("Today is a nice day.\n Let's go for a walk.\n We'll also go to the park.") print(y.group())
A Today is a nice day. Let's go for a walk. We'll also go to the park.

B Today is a nice day.\n Let's go for a walk.

C ['Today is a nice day.']

D Today is a nice day.

A
Answer: A

Today is a nice day.
Let's go for a walk.
We'll also go to the park.
Q 41: What will be the output after the following statements?
import re x = re.compile('Day') y = x.search('Today is a nice day') print(y)
A Today is a nice day.

B None

C ['Today is a nice day.']

D (Today is a nice day.)

B
Answer: B

None
Q 42: What will be the output after the following statements?
import re x = re.compile('Day', re.I) y = x.search('Today is a nice day') print(y.group())
A Today is a nice day.

B None

C ['Today is a nice day.']

D day

D
Answer: D

day
Q 43: What will be the output after the following statements?
import re x = re.compile('day', re.IGNORECASE) y = x.findall('Today is a nice day and a Sunday') print(y)
A [Today is a nice day.]

B ['day', 'day']

C ['day', 'day', 'day']

D day

C
Answer: C

['day', 'day', 'day']
Q 44: What will be the output after the following statements?
import re x = re.compile('Sunday') y = x.sub('Wednesday', 'Today is a nice day and a Sunday') print(y)
A Today is a nice day

B Today is a nice day and a Sunday

C ['Sunday']

D Today is a nice day and a Wednesday

D
Answer: D

Today is a nice day and a Wednesday
Q 45: What will be the output after the following statements?
import os x = os.getcwd() print(x)
A Name of the operating system

B Version of the operating system

C The current working directory

D Name of the current file

C
Answer: C

The current working directory
Q 46: What do the following statements do?
import webbrowser webbrowser.open('http://google.com')
A Ping http://google.com

B Display http://google.com in the shell

C Download http://google.com as a text file

D Launch a browser window to http://google.com

D
Answer: D

Launch a browser window to http://google.com
Q 47: What will be the output after the following statements?
import sys print(sys.argv)
A A set of the program's filename and command line arguments

B A list of the program's filename and command line arguments

C A tuple of the program's filename and command line arguments

D A dictionary of the program's filename and command line arguments

B
Answer: B

A list of the program's filename and command line arguments