eryk sun <eryk...@gmail.com> writes: > On Wed, Dec 23, 2015 at 7:36 PM, Ben Finney <ben+pyt...@benfinney.id.au> > wrote: > > So how do I get from a Python 2 ‘file’ object, to whatever > > ‘io.TextIOWrapper’ wants? > > I would dup the file descriptor and close the original file. Then open > the file descriptor using io.open
Thanks. Okay, now I reveal (I apologise for not making this clear initially) that I need the *same* code to work with pseudo files created by the unit test suite: files with no underlying file handle. That is, I need the same code to accept: * A Python 2 ‘file’ instance as emitted by many stdlib functions. * A Python 3 ‘io.*’ file object as emitted by many stdlib functions. * A pseudo-file (e.g. ‘io.BytesIO’) test double. With any of those, I need the code to wrap a stream already open in “binary” mode, and give me a wrapper (e.g. ‘io.TextIOWrapper’) to read and/or write text on that stream. -- \ “It is hard to believe that a man is telling the truth when you | `\ know that you would lie if you were in his place.” —Henry L. | _o__) Mencken | Ben Finney -- https://mail.python.org/mailman/listinfo/python-list
