Python Quiz

301. What is the result of:

sum([i for i in range(4)])

6

10

4

3

302. Which keyword allows a function to access a global variable for modification?

access

global

nonlocal

extern

303. What does this return?

len(set([1, 2, 2, 3]))

4

2

3

1

304. Which statement is true about Python tuples?

They are mutable

They can contain duplicate elements

They are unordered

They use square brackets

305. Which of the following will raise a `ValueError`?

int('123')

int('abc')

int(123.45)

int(True)

306. What is the output of:

print(' '.join(['a', 'b', 'c']))

'abc'

'a b c'

'a, b, c'

'a b c '

307. Which of these is used to define a constant in Python by convention?

ALL_CAPS

lower_case

camelCase

PascalCase

308. What does this list comprehension do?

[x for x in range(10) if x % 2 == 0]

Generates odd numbers up to 10

Generates numbers divisible by 3

Generates even numbers up to 10

Creates a list of squares

309. Which keyword is used to pass control to the outer loop in nested loops?

pass

continue

skip

None of the above

310. Which data type would be best for representing a collection of unique items?

list

dict

set

tuple