Travis E. Oliphant wrote:
> It also bothers me that so many ways to describe binary data are
> being used out there. This is a problem that deserves being solved.
Is there a survey paper somewhere about binary formats? What formats are
used in particle physics, bio-informatics, astronomy, etc?
CPython 3.3.0a2 (default, Apr 24 2012, 10:47:03) [GCC 4.4.5]
Linux-2.6.32-5-amd64-x86_64-with-debian-6.0.4 little-endian
Ran "make test". Hung during test_socket. Used CNTL-C to exit the test.
test_ssl failed. Ran "./python -m test -v test_ssl". Test ok. Ran
"./python -m test -v test_socket"
I use up-to-date Debian testing (wheezy), amd64 architecture.
I have made a "clone" of the developmental version of Python 3.3.
"make -s -j3" prints:
...
Python build finished, but the necessary bits to build these modules were
not found:
_bz2 _curses_curses_panel
_
dpkg-architecture -qDEB_HOST_MULTIARCH
gives
x86_64-linux-gnu
Installing dpkg-dev fixed the problem. Now both 3.3a3 and a developmental
"clone" work.
There is already a Debian package for 3.3 alpha3.
See http://packages.debian.org/source/experimental/python3.3
A large diff for Debian Python i
I use up-to-date Debian testing (wheezy), amd64 architecture. I compiled
and installed Python 3.3.0 alpha 3 using "altinstall". Debian wheezy comes
with python3.2 (and 2.6 and 2.7). I installed the Debian package
python3-bs4 (BeautifulSoup). I also downloaded a "clone" developmental
copy of 3.
I use up-to-date Debian testing (wheezy), amd64 architecture. I compiled
and installed Python 3.3.0 alpha 3 using "altinstall". Debian wheezy comes
with python3.2 (and 2.6 and 2.7). I installed the Debian package
python3-bs4 (BeautifulSoup4 for Python3). I also downloaded a "clone"
development
I have a PC with an AMD cpu and Mandrake 10.1. While installing Python
2.4 "make test" failed in "test_shutils.py". Here is the output of
"./python ./Lib/test/test_shutil.py":
test_dont_copy_file_onto_link_to_itself (__main__.TestShutil) ... ok
test_dont_move_dir_in_itself (__main__.TestShutil)
The relevant bug appears to be 1076467 at SourceForge.
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Today's Slashdot
(http://slashdot.org/articles/05/01/07/158236.shtml?tid=137) points to:
"The Free Lunch Is Over: A Fundamental Turn Toward Concurrency in
Software" by Herb Sutter at
"http://www.gotw.ca/publications/concurrency-ddj.htm";.
Is Python a suitable language for concurrent programmin
I had
PyArg_ParseTuple(args, "s#s#i:compare", &p1, &bytes1, &p2, &bytes2)
in a program. There are not enough arguments to PyArg_ParseTuple. Does
PyArg_ParseTuple know how many arguments it is getting? If so, I suggest
that an exception should be raised here.
_
Recently I needed some information about the floating point numbers on
my machine. So I wrote a tiny C99 program with the line
printf("%a\n", DBL_EPSILON);
The answer was "0x1p-52".
A search of comp.lang.python shows that I was not alone. Here are some
ideas.
1. Add to Python the constants in
Guido van Rossen wrote:
> I think the pattern hasn't been commonly known; people have been
> struggling with setdefault() all these years.
I use setdefault _only_ to speed up the following code pattern:
if akey not in somedict:
somedict[akey] = list()
somedict[akey].append(avalue)
These lin
The contents page for the Python Library Reference
("http://docs.python.org/dev/lib/lib.html";) has become much too long. I
suggest that it should be designed like the top page for portal web
sites. For example see "http://www.dmoz.org/";. I suggest that "lib.html"
be replaced by "lib_index.htm
"Travis E. Oliphant" <[EMAIL PROTECTED]> wrote:
> It is very important for many people to get access to memory with some
> description of how that memory should be interpreted as an array.
> Several Python packages could benefit if Python had some notion of an
> array interface that was at lea
Guido van Rossum wrote:
> developers contributing code without wanting
> to give up control are the problem.
That hits the nail on the head. If something is added to the standard
library, it becomes part of Python and must be controlled by whoever
controls Python. Otherwise there will be chaos
Python is a beautiful simple language with a rich standard library.
Python has done fine without a switch statement up to now. Guido left it
out of the original language for some reason (my guess is simplicity).
Why is it needed now? What would be added next: do while or goto? The
urge to add s
Is there a C API for the built-in type set? if not, why not?
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/usr/local/src/Python-2.4.1/Lib/SimpleXMLRPCServer.py:
raise 'bad method'
/usr/local/src/Python-2.4.1/Demo/classes/bitvec.py:
raise 'FATAL', '(param, l) = %r' % ((param, l),)
/usr/local/src/Python-2.4.1/Lib/plat-mac/FrameWork.py:
raise 'Unsupported in MachoPython'
/usr/local/src/Pyth
According to the source code, PyTuple_Pack returns a new reference (it
calls PyTuple_New). It also Py_INCREF's all the objects in the new
tuple. Is this unusual behavior? None of these added references are
documented in the API Reference Manual.
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Here is an example from the "Python Library Reference", Section 2.1
"Built-in Functions":
class C(object):
def getx(self): return self.__x
def setx(self, value): self.__x = value
def delx(self): del self.__x
x = property(getx, setx, delx, "I'm the 'x' property.")
It works. Bu
Guido van Rossum wrote:
file = os.path.abspath(file) if file else '?'
...
These are all unreadable. In C "a ? b : c" is not used very often. A
quick check of the Python source found 476 occurences.
-1 to conditional expressions.
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Guido van Rossum <[EMAIL PROTECTED]> wrote:
The discussion about PEP 343 reminds me of the following. Bram Cohen
pointed out in private email that, before PEP 342, there wasn't a big
need for a shortcut to pass control to a "sub-generator" because the
following for-loop works well enough:
def ma
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