Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #91343

Re: Returning a custom file object (Python 3)

Show all headers | View raw

Ben Finney <ben+python@benfinney.id.au> writes:

> Steven D'Aprano <steve@pearwood.info> writes:
>
> > but how do I tell open() to use MyFile?
>
> I haven't used it, but does the ‘opener’ parameter do what you want?

No, it doesn't; the ‘opener’ parameter doesn't have any say in the type
of object returned from ‘open’.

It seems the existing ‘open’ implementation doesn't allow you to
override the type of object returned. You may have to resort to
monkey-patching the ‘io’ attributes to put your preferred classes there.

-- 
 \       “Science shows that belief in God is not only obsolete. It is |
  `\                        also incoherent.” —Victor J. Stenger, 2001 |
_o__)                                                                  |
Ben Finney

Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Returning a custom file object (Python 3) Steven D'Aprano <steve@pearwood.info> - 2015-05-28 12:16 +1000
  Re: Returning a custom file object (Python 3) Ben Finney <ben+python@benfinney.id.au> - 2015-05-28 12:40 +1000
    Re: Returning a custom file object (Python 3) Marko Rauhamaa <marko@pacujo.net> - 2015-05-28 08:29 +0300
      Re: Returning a custom file object (Python 3) Chris Angelico <rosuav@gmail.com> - 2015-05-28 15:49 +1000
        Re: Returning a custom file object (Python 3) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-05-28 17:04 +1000
          Re: Returning a custom file object (Python 3) Chris Angelico <rosuav@gmail.com> - 2015-05-28 19:06 +1000
      Re: Returning a custom file object (Python 3) Gary Herron <gherron@digipen.edu> - 2015-05-27 22:56 -0700
        Re: Returning a custom file object (Python 3) Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-05-28 16:52 +1000
  Re: Returning a custom file object (Python 3) Ben Finney <ben+python@benfinney.id.au> - 2015-05-28 12:34 +1000
  Re: Returning a custom file object (Python 3) Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2015-05-28 10:29 +0100

csiph-web