RE_Lambda_Comprehension

What does the regular expression r"\d+" match?

• A single digit

• One or more digits

• Any non-digit

• Only letters

What function is used to check if a regex pattern matches at the beginning of a string?

• re.match()

• re.search()

• re.findall()

• re.sub()

What does re.findall(r"[A-Z]", "Hello World!") return?

• ['Hello', 'World']

• ['H', 'W']

• ['e', 'o']

• []

Which character matches any single character in regex?

• *

• ?

• .

• ^

What does re.sub(r"\s", "_", "Python is fun") return?

• 'Python_is_fun'

• 'Python is fun'

• 'Python_is_fun_'

• 'Python_isfun'

Which regex pattern matches a valid email address?

• r"[a-z]+@[a-z]+\.[a-z]+"

• r"\d+@\d+\.\d+"

• r"\w+\.\w+"

• r"[A-Z]+@[A-Z]+"

What is the output of re.match(r"py", "python").group()?

• 'py'

• 'python'

• 'pyt'

• Error

What will re.split(r"\d+", "foo123bar456baz") return?

• ['foo', 'bar', 'baz']

• ['foo123bar456baz']

• ['123', '456']

• ['foo', '123', 'bar', '456', 'baz']

What does ^ do in a regex pattern?

• Matches end of line

• Matches any character

• Negates a set

• Anchors to the start of a line

What is returned by re.findall(r"\b\w{4}\b", "This test will pass or fail")?

• ['This', 'test', 'will', 'pass', 'fail']

• ['This', 'test', 'will', 'pass']

• ['This', 'test', 'fail']

• ['test', 'fail']