closures.py

#
# Closure
#

def foo():
  x = 123
  y = [1, 2, 3]
  z = [1, 2, 3]

  def c1():
    print(x)
    print(y)
    print(z)

  x = 321
  y = [3, 2, 1]
  z.clear()
  z.append(3)
  z.append(2)
  z.append(1)

  def c2():
    print(x)
    print(y)
    print(z)

  return c1, c2

#
# Test
#

cc1, cc2 = foo()
print("=== c1 ===")
cc1()
print("=== c2 ===")
cc2()

# === c1 ===
# 321
# [3, 2, 1]
# [3, 2, 1]
# === c2 ===
# 321
# [3, 2, 1]
# [3, 2, 1]