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