This makes test_resource.py pass, and I think it's the right thing
to do: if you're closing a file after encountering an I/O error
there's nothing you can do about it. If you want the error, you
can call flush() yourself.
to even the most basic file object (I also added readall() which may
be a better API). Also, not all the tests requiring specific failure
modes could be saved. And there were the usual str/bytes issues.
I made sure test_io.py still passes (io.py is now most thoroughly
tested by combining test_file.py and test_io.py).
io.open() now takes all positional parameters (so we can conveniently
call it from C code).
test_tarfile.py no longer uses u"..." literals, but is otherwise still
badly broken.
This is a checkpoint; some more stuff now breaks.
recv()) now return bytes, not str or str8. The socket.py code is
redone; it now subclasses _socket.socket and instead of having its own
_fileobject for makefile(), it uses io.SocketIO. Some stuff in io.py
was moved around to make this work. (I really need to rethink my
policy regarding readline() and read(-1) on raw files; and readline()
on buffered files ought to use peeking(). Later.)
Changes to io.py, necessary to make this work:
- Redid io.StringIO as a TextIOWrapper on top of a BytesIO instance.
- Got rid of _MemoryIOMixin, folding it into BytesIO instead.
- The read() functions that take -1 to mean "eveything" now also take None.
- Added readline() support to BufferedIOBase. :-(
encoding) which makes the buffer mutable. Strings are encoded on the way in
and decoded on the way out.
Use io.StringIO in test_codecs.py.
Fix the base64_codec test in test_codecs.py.
Don't read more than one line when reading text from a tty device.
Add peek() and read1() methods.
Return str instead of unicode when return ASCII characters in text mode.
Fix the truncate() semantics -- it should not affect the current position.
Switch wave.py/chunk.py to struct.unpack_from() to support bytes.
Don't use writelines() on binary files (test_fileinput.py).
write() returns the number of bytes/characters written/buffered.
FileIO.close() calls self.flush().
Implement readinto() for buffered readers.
Tests th check all these.
Test proper behavior of __enter__/__exit__.
Add closed attribute.
Support int argument to open() -- wrapping a file descriptor.
For b/w compat, support readline(n).
Support readlines() and readlines(n).
Flush on __del__.
Added some XXX comments.
I cleaned up whitespace but otherwise didn't change it.
This will need work to reflect the tentative decision to drop nonblocking I/O
support from the buffering layers.
Also implemented Neal's suggestion (add fileno() to SocketIO)
and some unrelated changes, e.g. remove Google copyright
and make BytesIO a subclass of BufferedIOBase.
Guido van Rossum
Walter Dörwald
Georg Brandl
Neal Norwitz