Python closures vs methods

closures-vs-methods.py

from timeit import timeit
import inspect
def t():
  for f in inspect.stack():
    print(f.function)
t()


s = """
class Object:
  def __init__(self):
    pass
def A(x):
  self = Object()

  def bar(y):
    return x+y

  self.bar = bar
  return self

class B:
  def __init__(self, x):
    self.x = x
  def bar(self, y):
    return self.x + y

a = A(3)
b = B(3)
"""

a = """
a = A(3)
"""

b = """
b = B(3)
"""

c = """a.bar(4)"""
d = """b.bar(4)"""


print(timeit(a, s, number=1000000))
print(timeit(b, s, number=1000000))
print(timeit(c, s, number=1000000))
print(timeit(d, s, number=1000000))