Re: Misleading wikipedia article on Python 3?

Evan Klitzke wrote:
On 8/8/07, greg <greg@xxxxxxxxxxxxxxxxxxxxx> wrote:
Istvan Albert wrote:
A solution would be writing the code with a logging function to begin
with, alas many times that is out of one's hand.
If the code has been written with calls to a builtin
print function, the situation isn't much better. You
could monkeypatch the print function, but that's
probably worse than swapping sys.stdout.

You can easily modify print in a safe way. Here's an example, that
will work in any recent version of Python:

import sys

def print_(s):
print s

def logger(method):
def wrapper(s):
sys.stderr.write('Logging: %s\n' % s)
method(s)
return wrapper

print_ = logger(print_)

print_('hello')


Running this code will do a regular print of 'hello', as well as
"logging" it to stderr. As a function, you can convert print wholesale
to another logging function, or wrap it transparently like this to
provide additional logging functionality. What do you find wrong with
this sort of "monkeypatching"?


foolish question maybe.
Why wouldn't you do it this way ?

def print_(s):
print s

def logger(m):
sys.stderr.write('Logging: %s\n' % m)
method(m)

print_ = logger(print_)

print_('hello')




.

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