Python content manager executing order

python-with-exception.py

import contextlib

@contextlib.contextmanager
def inner():
    try:
        print("inner():  before yield")
        yield "~~~message~~~"
        print("inner():  after yield")
    except Exception as e:
        print("inner():  catch exception -- "+str(e))
        raise

@contextlib.contextmanager
def middle():
    print("middle(): enter method")
    try:
        with inner() as message:
            print("middle(): before yield")
            yield message
            print("middle(): after yield")
    except Exception as e:
        print("middle(): catch exception -- "+str(e))
        raise

@contextlib.contextmanager
def outer():
    print("outer():  enter method")
    try:
        with middle() as message:
            print("outer():  before yield")
            yield message
            print("outer():  after yield")
    except Exception as e:
        print("outer():  catch exception -- "+str(e))
        raise

print("module:   enter")
try:
    with outer() as message:
        print("module:   enter with block")
        print("module:   message: "+message)
        raise Exception("module:   raise exception")
        print("module:   leave with block")
except Exception as e:
    print("module:   catch exception -- "+str(e))
    raise
print("module:   leave")

"""
module:   enter
outer():  enter method
middle(): enter method
inner():  before yield
middle(): before yield
outer():  before yield
module:   enter with block
module:   message: ~~~message~~~
inner():  catch exception -- module:   raise exception
middle(): catch exception -- module:   raise exception
outer():  catch exception -- module:   raise exception
module:   catch exception -- module:   raise exception
Traceback (most recent call last):
  File "/Users/cynthia/Documents/contextmanager.py", line 42, in <module>
    raise Exception("module:   raise exception")
Exception: module:   raise exception
"""

python.py

import contextlib

@contextlib.contextmanager
def inner():
    print("inner():  before yield")
    yield "~~~message~~~"
    print("inner():  after yield")

@contextlib.contextmanager
def middle():
    print("middle(): enter method")
    with inner() as message:
        print("middle(): before yield")
        yield message
        print("middle(): after yield")

@contextlib.contextmanager
def outer():
    print("outer():  enter method")
    with middle() as message:
        print("outer():  before yield")
        yield message
        print("outer():  after yield")

print("module:   enter")
with outer() as message:
    print("module:   enter with block")
    print("modele:   message: "+message)
    print("module:   leave with block")
print("module:   leave")

"""
module:   enter
outer():  enter method
middle(): enter method
inner():  before yield
middle(): before yield
outer():  before yield
module:   enter with block
modele:   message: ~~~message~~~
module:   leave with block
outer():  after yield
middle(): after yield
inner():  after yield
module:   leave
"""