Question

Page 3 of 7 (Python) For each substring in the input string t that matches the regular expression r, the method call re. aub (r, o, t) substitutes the matching substring with the string a. Wwhat is the output? import re print (re.aub (r"l+\d+ " , "$, "be+345jk3726-45+9xyz")) a. "be$jk3726-455xyz" c. "bejkxyz" 9. b. "be$jks-$$xyz" d. $$$" A object a- A (2) 10. (Python) What is the output? # Source code file: A.py class A init (self, the x): self.x- the_x+3 def str (self) return "a" atr(self.x) +a" def B object t = B (2, 6) # Source code file: B.py elass B(A): y init (self, the x, the y) (the x + 4) def super).init self.y the y 2 _repr (self) : return "b" str (self.y+ self.x) "b def # Source code: test.py S A(2) t B (2, 6) print (str (s) , str(t), repr (t)) a. a5a a5a b17b b. a5a a9a b21b c. a5a a5a b125b d. a5a a9a b129b 11. (Python) If the method last is defined like this, which of the assertEqual statements passes? def last (s): if len (s) return s[len (s) 1] > 0: else: return n Eile: A.pY A: A object def init (selt, the x) A(2) self.x the x+3 def str (selt): returna otr(self.x) "a # Source code file: B.py class B(A) : def init (self, the x. the y) super) init (the x 4) self.y- the y 2 B object t B12, 6) Y def repr return "b (self) +selt.x) "b " +str(self.y # Source code: test.py -A(2) t B(2, 6) print (str(a), str(t), repr(t)) d. aSa a9a b129b C aSa a5a b125b b. aSa a9a b21b a. aSa a5a b17b 11. (Python) If the method last is defined like this, which of the assertEqual statements passes? def last (s): if len(s)> 0: 1) return s[len (s) else: return " s [i] returns the letter of indexi from the string. a. self.assert Equal (last ("cat", "c") b. self.assert Equal (last ("cat ", False) c. self.assertEqual (last ("dog", "g") d. self.assert Equal (last ("dog", True) Note:

Answer 1

So the answer to Q11 is option C.

It is so because initially " if " condition would be executed as text length of the "dog" is greater than 0.

Therefore the value of s[2] would return which is "g".

Now since last(dog) is equal to g, self.assertEqual statement would pass