Re: Misleading wikipedia article on Python 3?

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"?

--
Evan Klitzke <evan@xxxxxxxx>
.

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