Python interview questions part 41
Python interview questions part 41
Take as many assements as you can to improve your validate your skill rating
Total Questions: 20
1. Which of the following creates a pattern object?
Correct Answer is : re.compile(str)
2. What does the function re.match do?
Correct Answer is : matches a pattern at the start of the string
3. What does the function re.search do?
Correct Answer is : matches a pattern at any position in the string
4. What is the output of the following? sentence = 'we are humans' matched = re.match(r'(.*) (.*?) (.*)', sentence) print(matched.groups())
Correct Answer is : (‘we’, ‘are’, ‘humans’)
5. What is the output of the following? sentence = 'we are humans' matched = re.match(r'(.*) (.*?) (.*)', sentence) print(matched.group())
Correct Answer is : ‘we are humans’
6. What is the output of the following? sentence = 'we are humans' matched = re.match(r'(.*) (.*?) (.*)', sentence) print(matched.group(2))
Correct Answer is : ‘humans’
7. What is the output of the following?
sentence = 'horses are fast'
regex = re.compile('(?P\w+) (?P\w+) (?P\w+)')
matched = re.search(regex, sentence)
print(matched.groupdict())
Correct Answer is : {‘animal’: ‘horses’, ‘verb’: ‘are’, ‘adjective’: ‘fast’}
8. What is the output of the following?
sentence = 'horses are fast'
regex = re.compile('(?P\w+) (?P\w+) (?P\w+)')
matched = re.search(regex, sentence)
print(matched.groups())
Correct Answer is : (‘horses’, ‘are’, ‘fast’)
9. What is the output of the following?
sentence = 'horses are fast'
regex = re.compile('(?P\w+) (?P\w+) (?P\w+)')
matched = re.search(regex, sentence)
print(matched.group(2))
Correct Answer is : ‘are’
10. The character Dot (that is, ‘.’) in the default mode, matches any character other than _____________
Correct Answer is : newline
11. The expression a{5} will match _____________ characters with the previous regular expression.
Correct Answer is : exactly 5
12. ________ matches the start of the string. ________ matches the end of the string.
Correct Answer is : ‘^’, ‘$’
13. Which of the following will result in an error?
Correct Answer is : >>> p = re.subn()
14. What is the output of the line of code shown below? re.split('\W+', 'Hello, hello, hello.')
Correct Answer is : [‘Hello’, ‘hello’, ‘hello’, ”]
15. What is the output of the following function? re.findall("hello world", "hello", 1)
Correct Answer is : [ ]
16. Choose the function whose output can be: <_sre.SRE_Match object; span=(4, 8), match='aaaa'>.
Correct Answer is : >>> re.search(‘aaaa’, “alohaaaa”, 0)
17. Which of the following functions clears the regular expression cache?
Correct Answer is : re.purge()
18. What is the output of the code shown? import re re.ASCII
Correct Answer is : 256
19. Which of the following functions results in case insensitive matching?
Correct Answer is : re.I
20. What is the output of the code shown? re.compile('hello', re.X)
Correct Answer is : re.compile(‘hello’, re.VERBOSE)
