Question

Problem 1 1 def modify(word.ch). word == word + ch return word print('new word is', word) To run the function modify() defined above, we make the following call: result = modify('course', 's') Find and fix the errors in the function definition, lines (1) to (4), such that after the call is executed: • Variable result has the value 'courses' • 'new word is courses' is printed out. For each error found and fixed, you must indicate the following: • line #, type of error, what causes the error, the fix you propose, and the rationale for the fix. #CASCOPE o ors TAL Problem 2 #a Give ONE example of a value for each of the following data types: int_23 bool_ str 3,5 list float #b For each of the data types below: (1) Give an example of an expression that has a binary operator applied to two values of that type, and (2) Evaluate the expression. Follow the example for the int data type. data type value operator value evaluates to lint 15/12 or 3t 5 12 15 str bool list 42 EHHE #c If count and limit have the same value, what value do the following expressions evaluate to? count == limit count != limit count <= limit or count >= limit

Answer 1

1.

Line 1: no colon at the end of the statement and no comma between the arguments.

Fix: def modify (word, ch):

Line 2: Incorrect use of "==", instead it should be "="

Fix: word = word + ch

Line 3: return statement should be the last statement in the function.

Line 4: this statement should come before line 3.

The correct code:

def modify(word, ch):

word = word + ch

print('new word is', word)

return word

result = modify('course', 's')

LGLL 6.3.0 20170516] on Linux new word is courses def modify (word, ch): word = word + ch print('new word is', word) return word 6 result = modify('course', 's')

2)

a) int -> 1

bool -> True

str -> "Hello"

float -> 3.14

b) str -> "Hello" + "world" evaluates to "HelloWorld"

bool -> (3 > 5) and (4 != 0) evaluates to False

list -> [1, 2, 3] + [4, 5] evaluates to [1, 2, 3, 4, 5]

c)

count == limit ----> True

count != limit ----> False

count <= limit or count >= limit ----> True

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