gs gs109 Regular Expressions - Python Regular Expressions - Quiz No.2
gs gs109 Python Quiz
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Question 1: ________ matches the start of the string.
________ matches the end of the string.
________ matches the end of the string.
‘^’, ‘$’
‘$’, ‘^’
‘$’, ‘?’
‘?’, ‘^’
Question 2: Which of the following will result in an error?
>>> p = re.compile("d") >>> p.search("door")
>>> p = re.escape(‘hello’)
>>> p = re.subn()
>>> p = re.purge()
Question 3: What will be the output of the following Python code?
re.split('\W+', 'Hello, hello, hello.')
[‘Hello’, ‘hello’, ‘hello.’]
[‘Hello, ‘hello’, ‘hello’]
[‘Hello’, ‘hello’, ‘hello’, ‘.’]
[‘Hello’, ‘hello’, ‘hello’, ”]
Question 4: What will be the output of the following Python function?
re.findall("hello world", "hello", 1)
[“hello”]
[ ]
hello
hello world
Question 5: Choose the function whose output can be: <_sre.SRE_Match object; span=(4, 8), match=’aaaa’>.
>>> re.search(‘aaaa’, “alohaaaa”, 0)
>>> re.match(‘aaaa’, “alohaaaa”, 0)
>>> re.match(‘aaa’, “alohaaa”, 0)
>>> re.search(‘aaa’, “alohaaa”, 0)
Question 6: Which of the following functions clears the regular expression cache?
re.sub()
re.pos()
re.purge()
re.subn()
Question 9: What will be the output of the following Python code?
re.compile('hello', re.X)
[‘h’, ‘e’, ‘l’, ‘l’, ‘o’]
re.compile(‘hello’, re.VERBOSE)
Error
Junk value
Question 10: What will be the output of the following Python code?
re.split('[a-c]', '0a3B6', re.I)
Error
[‘a’, ‘B’]
[‘0’, ‘3B6’]
[‘a’]
