Catalog of quizzes

def foo():
  x = 1
  return x

foo.x = 4

print(foo(), foo.x)

1 4

• scope
• object/variable
• function/variable
• function/object

def foo():
  x = 300
  def foo2():
  print(x)
  foo2()

foo() 

300

• scope

x = 300

def foo():
  return x

print(foo() == x)

True

• scope
• boolean/operation/compare

x = 300

def foo():
  x = 200
  return x

print(foo(), x)

200 300

• scope

def foo():
  global x
  x = 300

foo()

print(x)

300

• scope
• statement/global

x = 300

def foo():
  global x
  x = 200

foo()

print(x) 

200

• scope
• statement/global

def foo():
  x = 12
  def foo2(a):
  x += a
  return x
  return foo2

fun = foo()

print(fun(2))

UnboundLocalError: local variable 'x' referenced before assignment

• scope

def func(): 
  print(name, end = ' ')
  name = "Anton"
  print(name)

name = "Petr"
func()

UnboundLocalError: local variable 'name' referenced before assignment

• scope

name = 'Anton'

def greeting():
  name = 'Rob'
  print(f'Hello {name}', end = ' ')

def farewell():
  print(f'Bye {name}')

greeting()
farewell()

Hello Rob Bye Anton

• scope

num = 2

def increment():
  num = num + 1
  print(num)

increment()

UnboundLocalError: local variable 'num' referenced before assignment

• scope

def outer():
  num = 5

  def inner():
    num = 25
    print(num, end = ' ')

  inner()
  print(num)

outer()

25 5

• scope
• function/inner