Python quiz

Which one is NOT a legal variable name?

• my_var

• Myvar

• _myvar

• my-var

What is the correct syntax to output the type of a variable or object in Python?

• print(typeof(x))

• print(type(x))

• print(typeof x)

• print(typeOf(x))

Which method can be used to remove any whitespace from both the beginning and the end of a string?

• ptrim()

• len()

• strip()

• trim()

A while loop in Python is used for what type of iteration?

• indefinite

• discriminant

• definite

• indeterminate

Which of these collections defines a LIST?

• ["apple", "banana", "cherry"]

• {"apple", "banana", "cherry"}

• ("apple", "banana", "cherry")

• {"name": "apple", "color": "green"}

What is the output of the following code snippet:

a = ['foo', 'bar', 'baz', 'qux', 'corge']

while a:

if len(a) < 3:

break

print(a.pop())

print('Done.')

• corge

  qux

  baz

• corge

  qux

  baz

  Done.

• The snippet doesn’t generate any output.

• corge

  qux

  baz

  bar

  foo

  Done.

Will the print() statement on line 5 be executed in this case:

a = ['foo','bar','baz','qux','corge']

while a:

print(a.pop())

else:

print('Done.')

• No

• Yes

After execution of the following code, what is the value of s?

s = ""

n = 5

while n > 0:

n -= 1

if (n % 2) == 0:

continue

a = ['foo', 'bar', 'baz']

while a:

s += str(n) + a.pop(0)

if len(a) < 2:

break

What is the output of the following code snippet:

d = {'foo': 1, 'bar': 2, 'baz': 3}

 while d:

        print(d.popitem())

 print('Done.')

• The snippet doesn’t generate any output.

• Done.

• foo bar baz

• ('baz', 3) 
  ('bar', 2) 
  ('foo', 1) 
  Done.

What is the output of this code snippet:

d = {'foo': 1, 'bar': 2, 'baz': 3}

while len(d) > 3:

print(d.popitem())

print('Done.')

• Done.

• ('baz', 3)

  ('bar', 2)

  ('foo', 1)

  Done.

• The snippet doesn’t generate any output.

• foo

  bar

  baz