[Python-ideas] Adding an 'errors' argument to print

[Michel Desmoulin]

Le 26/03/2017 à 10:31, Victor Stinner a écrit :
> print(msg) calls sys.stdout.write(msg): write() expects text, not bytes.

What you are saying right now is that the API is not granular enough to
just add a parameter. Not that it can't be done. It just mean we need to
expose stdout.write() encoding behavior.

> I dislike the idea of putting encoding options in print. It's too
> specific. What if tomorrow you replace print() with file.write()? Do you
> want to add errors there too?

You would have to rewrite all your calls anyway, because print() call
str() on things and accept already many parameters while file.write()
doesn't.

> 
> No, it's better to write own formatter function as shown in a previous
> email.

print(encoding) is short, easy to use, unobtrusive and will be used
ponctually.

How is that using your own formatter function better ?