Change by Ziga Seilnacht :
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nosy: -zseil
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<https://bugs.python.org/issue32696>
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Ziga Seilnacht [EMAIL PROTECTED] added the comment:
Sorry for the long silence. I think that this patch is not relevant
anymore. The code that uses exception pickling already had to be adapted
to changes in Python 2.5, so there is no need to change the pickling
again and risk breaking user code
Ziga Seilnacht [EMAIL PROTECTED] added the comment:
Hi Raymond,
The signature matters because the current code in update_one_slot()
forgets to set the use_generic flag when slots have different wrappers.
This causes that the slot from the base class is left in the new type.
Slots have different
Changes by Ziga Seilnacht [EMAIL PROTECTED]:
Added file: http://bugs.python.org/file12029/time_slot_inheritance.py
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Python tracker [EMAIL PROTECTED]
http://bugs.python.org/issue1694663
Ziga Seilnacht [EMAIL PROTECTED] added the comment:
Here is a patch for trunk and 2.5 version. It also contains a fix for
another crasher (see the tests). I only tested the 2.5 patch, because I
don't have the tools for the trunk installed.
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keywords: +patch
nosy: +zseil
Added file
Changes by Ziga Seilnacht [EMAIL PROTECTED]:
Added file: http://bugs.python.org/file12034/getattr_hooks_trunk.diff
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Python tracker [EMAIL PROTECTED]
http://bugs.python.org/issue4230
Ziga Seilnacht [EMAIL PROTECTED] added the comment:
Do you require millisecond support or would microsecond support be
enough? r61402, which is included in Python 2.6, added support for %f
format to datetime.strftime() and datetime.strptime(). See also #1158.
--
nosy: +zseil
Ziga Seilnacht [EMAIL PROTECTED] added the comment:
Here is another patch, for Python 2.4, which contains only the security
fix. Benjamin, will you also commit these backports?
Added file: http://bugs.python.org/file12036/getattr_hooks_24.diff
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dgdev wrote:
I would like to pickle an extension type (written in pyrex). I have
it working thus far by defining three methods:
class C:
# for pickling
__getstate__(self):
... # make 'state_obj'
return state_obj
__reduce__(self):
looping wrote:
Hi,
for the fun I try operator overloading experiences and I didn't
exactly understand how it works.
Here is my try:
class myint(int):
def __pow__(self, value):
return self.__add__(value)
a = myint(3)
a ** 3
6
OK, it works. Now I try
David Abrahams wrote:
I'm seeing highly surprising (and different!) behaviors of
PyImport_ImportModule on Linux and Windows when used in a program with
python embedding.
On Linux, when attempting to import a module xxx that's in the current
directory, I get
ImportError: No module named
John Nagle wrote:
That's fascinating. Is that a documented feature of the language,
or a quirk of the CPython interpreter?
Its a documented feature of the language. From the Reference Manual:
An assignment statement evaluates the expression list (remember that
this can be a single
Nick Alexander wrote:
Hello,
I am writing a python extension (compiled C code) that defines an
extension type with PyNumberMethods. Everything works swimmingly,
except I can't deduce a clean way to set the docstring for tp_*
methods. That is, I always have
type.__long__.__doc__ ==
Andrew Felch wrote:
Hello all,
I'm using the metaclass trick for automatic reloading of class member
functions, found
at:http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/160164
My problem is that if I
1) pickle an object that inherits from AutoReloader
2) unpickle the object
3)
Alex Martelli wrote:
On Feb 27, 2007, at 2:59 AM, Daniel Nogradi wrote:
Hi Alex,
I did another test, this time with python 2.4 on suse and things are
worse than in the previous case (which was python 2.5 on fedora 3),
ouput of 'python gmp_test.py' follows:
Interesting! gmpy interacts
Andrew Felch wrote:
Thanks Ziga. I use pickle protocol 2 and binary file types with the
command: cPickle.dump(obj, file, 2)
I did your suggestion, i commented out the __call__ function of
MetaInstanceTracker and copied the text to the __new__ function of
AutoReloader (code appended). I
Andrew Felch wrote:
I pasted the code into mine and replaced the old. It seems not to
work for either unpickled objects or new objects. I add methods to a
class that inherits from AutoReloader and reload the module, but the
new methods are not callable on the old objects. Man! It seems
Andrew Felch wrote:
Thanks for checking. I think I narrowed the problem down to
inheritance. I inherit from list or some other container first:
class PointList( list, AutoReloader ):
def PrintHi1(self):
print Hi2
class MyPrintingClass( AutoReloader ):
def
zefciu wrote:
Ok. Now I do it this way:
c_real = PyFloat_AsDouble(PyTuple_GetItem(coord,0));
c_imag = PyFloat_AsDouble(PyTuple_GetItem(coord,1));
And it worked... once. The problem is really funny - in the interactive
the function fails every second time.
mandelpixel((1.5, 1.5), 9,
On Feb 26, 7:44 pm, Chris Mellon [EMAIL PROTECTED] wrote:
This appears to be a change in behavior from Python 2.4 to Python 2.5,
which I can't find documented anywhere. It may be windows only, or
related to Windows behavior.
In 2.4, the current directory (os.curdir) was on sys.path. In 2.5,
Chris Mellon wrote:
Considering that it's a backwards incompatible breaking change
(although I understand why it was done), you'd think it deserved
mention in the more prominent Whats new in Python 2.5 section on the
website, in addition to a one-liner in the NEWS file. Ah well, while
I'm
ahaldar wrote:
Hi:
I have some large data structure objects in memory, and when I attempt
to pickle them, I get the following error:
SystemError: frexp() out of range
Are there some objects that are just too large to serialize, and if
so, is there an easy workaround without breaking up
George Sakkis wrote:
I was kinda surprised that setting __class__ or __dict__ goes through
the __setattr__ mechanism, like a normal attribute:
class Foo(object):
def __setattr__(self, attr, value):
pass
class Bar(object):
pass
f = Foo()
f.__class__ = Bar
print
Mark Dickinson wrote:
Does anyone know of a good reason for the above behaviour? Would a
patch to complexobject.c that `fixes' this be of any interest to
anyone but me? Or would it likely break something else?
I think this is a bug in the PyComplex_AsCComplex function. To get
more feedback,
Thomas Heller wrote:
Do you have a pointer to that post?
I think that he was refering to this post:
http://mail.python.org/pipermail/python-list/2006-December/416241.html
If you are interested in various implementations there is also this:
Colin J. Williams wrote:
It would be helpful if the rules of the game were spelled out more clearly.
The conditional expression is defined as X if C else Y.
We don't know the precedence of the if operator. From the little test
below, it seem to have a lower precedence than or.
The rules are
On Jan 26, 10:41 am, [EMAIL PROTECTED] wrote:
Python 2.4.4
mod_python 3.2.10 + Apache 2.0
def index( req, **params ):
from xml.dom.minidom import parseString
doc = parseString( whatever )
= blank screen, _no_any_exception_; Apache error_log:
[Fri Jan 26 10:18:48 2007] [notice]
Nick Maclaren wrote:
I can't find any description of these. Most are obvious, but some
are not. Note that this is from the point of view of IMPLEMENTING
them, not USING them. Specifically:
The Python equivalents of these methods are described in the
reference manual:
Nick Maclaren wrote:
Hmm. The extensions documentation describes how to add instance
members to a class (PyMemberDef), but I want to add a class member.
Yes, this is constant for all instances of the class.
Any pointers?
Add something like this to your PyMODINIT_FUNC after you have
Mark wrote:
[a lot of valid, but long concerns about types that return
an object of their own type from some of their methods]
I think that the best solution is to use an alternative constructor
in your arithmetic methods. That way users don't have to learn about
two different factories for the
Nick Maclaren wrote:
I think that you should. Where does it say that tuple's __str__ is
the same as its __repr__?
The obvious interpretation of the documentation is that a sequence
type's __str__ would call __str__ on each sub-object, and its __repr__
would call __repr__.
How would you
Nick Maclaren wrote:
Well, it's not felt necessary to distinguish those at top level, so
why should it be when they are in a sequence?
Well, this probably wasn't the best example, see the links below
for a better one.
But this whole thing is getting ridiculous. The current implementation
[EMAIL PROTECTED] wrote:
Hello,
I've written a C embedded application. I want to open a python gui
application in my C program but when I do :
PyRun_String( import gui.py, file_input, pDictionary, pDictionary );
the interpreter emits an error: tkinter module not defined
What script must
Frank Niessink wrote:
I tried to lookup the python source code where the actual comparison
happens. I think it is in methodobject.c (I'm not familiar with the
python source so please correct me if I'm wrong), meth_compare. That
function did not change between python 2.4.4 and 2.5. Moreover,
Bob Greschke wrote:
I want to cause any traceback output from my applications to show up in one
of my dialog boxes, instead of in the command or terminal window (between
running on Solaris, Linux, OSX and Windows systems there might not be any
command window or terminal window to show the
Steven D'Aprano wrote:
[snip]
The important thing to notice is that alist[1:] makes a copy. What if the
list has millions of items and duplicating it is expensive? What do people
do in that case?
Are there better or more Pythonic alternatives to this obvious C-like
idiom?
for i in range(1,
[EMAIL PROTECTED] wrote:
Hi all
I'm currently having some issues with a process getting deadlocked. The
problem is that the only way I can seem to find information about where
it deadlocks is by making a wild guess, insert a pdb.set_trace() before
this point, and then step until it locks up,
Sébastien Ramage wrote:
oh!
sorry, I made some search on comp.lang.python and fr.comp.lang.python
and finally I forgot where I was...
My question is :
how use pyopengl with python 2.5 ??
it seems that pyopengl was stop on 2005
PyOpenGL is still maintained, but most of the development is
zloster wrote:
I'm using Python 2.4.3 for Win32.
I was trying to run a few child processes simultaneously in separate
threads and get their STDOUT, but the program was leaking memory and I
found that it was because of subprocess operating in another thread.
The following code works fine, but
[EMAIL PROTECTED] wrote:
im plugging away at the problems at
http://www.mathschallenge.net/index.php?section=project
im trying to use them as a motivator to get into advanced topics in
python.
one thing that Structure And Interpretation Of Computer Programs
teaches is that memoisation is
Iljya wrote:
I have reproduced the error with Numpy 1.0b1
The output with v.1.0b1 reads:
PicklingError: Can't pickle type 'float32scalar': it's not found as
__builtin__.float32scalar
Has anyone else encountered this?
Thanks,
Iljya
Iljya wrote:
Hello,
I need to pickle the type
Pedro Werneck wrote:
Hi
[snip]
Well... I'm not talking about metaclass attributes... that's perfectly
consistent, agreed.
I'm saying that when the class implements a custom __getattribute__,
when you try to access the instance attributes from itself, it uses it.
But if the class is a
Dave Potts wrote:
Hi,
I'm just starting a development project in Python having spent time in
the Java world. I was wondering what tool advice you could give me
about setting up a continuous integration environment for the python
code: get the latest source, run all the tests, package up,
Martin Höfling wrote:
Hi there,
is it possible to put the methods of a class in different files? I just
want to order them and try to keep the files small.
Regards
Martin
You could use something like this:
Example usage:
class Person(object):
... def __init__(self, first,
Kirk Strauser wrote:
[snip]
OK, now for the good stuff. In the code below, how can I find the name of
the class that 'bar' belongs to:
class Foo(object):
... def bar(self):
... pass
...
b = Foo.bar
print b.im_class.__name__
Foo
But if you are writing a decorator, you
[EMAIL PROTECTED] wrote:
Please, confirm me one thing. According to Python documentation for
Windows the objects .pyd and .dll have the same characteristics. I
observed that in Python24 it does not produce errors when importing
xx.dll or xx.pyd, however in python25b2, it only accepts nto
Paddy wrote:
I followed the recent anouncement of version 0.9 of PyPi and found out
that there was work included on adding constraint satisfaction solvers
to PyPy:
http://codespeak.net/pypy/dist/pypy/doc/howto-logicobjspace-0.9.html
I was wondering if this was a possibiity for mainstream
[EMAIL PROTECTED] wrote:
What's the best way to traverse the web of inheritance? I want to take
a class and traverse its bases and then the bases' bases etc
looking for a particular class. What first came to mind was nested for
loops. However, I want to know if there's some pre-existing
Barry Kelly wrote:
[snipped]
Yet when I try this with the 'type' type, it doesn't work:
---8---
x.__class__.__class__
type 'type'
x.__class__.__getattribute__('__class__')
Traceback (most recent call last):
File stdin, line 1, in ?
TypeError: descriptor '__getattribute__' requires a
Sreeram Kandallu wrote:
I'm writing an extension type, for which i'd like to implement only ==
and !=, but not the other comparison operators like ,=,,=.
What is the right way to do this?
I currently have a tp_richcompare function, which handles Py_EQ, and
Py_NE, but raises a TypeError for
Michael Yanowitz wrote:
Is there something like a .pythoninitrc which can run whenever we start
Python
that can load a file with many sys.path.append(), etc?
If not is there some way to modify the Python shell constructor and
destructor?
Thanks in advance:
Michael yanowitz
Yes, there is
lcaamano wrote:
We have a tracing decorator that automatically logs enter/exits to/from
functions and methods and it also figures out by itself the function
call arguments values and the class or module the function/method is
defined on. Finding the name of the class where the method we just
BBands wrote:
There must be a better way to multiply the elements of one list by
another:
[snipped]
Perhaps a list comprehension or is this better addressed by NumPy?
If you have a large amount of numerical code, it is definetly better to
use numpy, since it is intended just for that
jelle wrote:
Hi Michele,
Thanks for pointing that out, cool!
I would argue -even- that is too much programming effort.
Like method docstring, variables docstrings should be effortless to
write.
I don't know what exactly do you mean with variable docstrings, but
if you just want to add
Kirill Simonov wrote:
Could someone explain why __reduce__(2) works for files while
__reduce__(1) doesn't?
I think it is a bug. Both should raise an error.
__reduce__ and __reduce_ex__ are part of the pickle protocol.
Files are not meant to be pickable, since they are already
persistent. With
Fredrik Lundh wrote:
(reposted from doc-sig, which seems to be mostly dead
these days).
over at the pytut wiki, carndt asked:
Are there any guidelines about conventions concerning
punctuation, text styles and language style (e.g. how
to address the reader)?
any suggestions
Steven Watanabe wrote:
PEP 8 says, Comparisons to singletons like None should always be done
with 'is' or 'is not', never the equality operators. I know that is
is an identity operator, == and != are the equality operators, but
I'm not sure what other singletons are being referred to here.
David Isaac wrote:
Ziga Seilnacht [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
a = 1
b = 1
a == b
True
a is b
False
Two follow up questions:
1. I wondered about your example,
and noticed
a = 10
b = 10
a is b
True
Why the difference?
Python has
Michele Simionato wrote:
snip
There is a minor bug in your code:
def thisclass(proc, *args, **kw):
Example:
def register(cls): print 'registered'
...
class C:
...thisclass(register)
...
registered
# basic idea stolen from zope.interface, which
Darren Dale wrote:
I am trying to work with properties, using python 2.4.2. I can't get the
docstrings to work, can someone suggest what I'm doing wrong? I think the
following script should print This is the doc string., but instead it
prints:
float(x) - floating point number
Convert a
David Isaac wrote:
1. Without a __dict__ variable,
instances cannot be assigned new variables not listed in the __slots__
definition.
So this seemed an interesting restriction to impose in some instances,
but I've noticed that this behavior is being called by some a side effect
the reliance
Christian Eder wrote:
Hi,
I think I have discovered a problem in context of
metaclasses and multiple inheritance in python 2.4,
which I could finally reduce to a simple example:
I don't know if this is a bug; but I will try to expain
what is happening; here is an example similar to yours:
bruno at modulix wrote:
Hi
I'm currently playing with some (possibly weird...) code, and I'd have a
use for per-instance descriptors, ie (dummy code):
snip
Now the question: is there any obvious (or non-obvious) drawback with
this approach ?
Staticmethods won't work anymore:
class
Lonnie Princehouse wrote:
Occaisionally, the first two lines of The Zen of Python conflict with
one another.
An API I'm working on involves a custom namespace implementation using
dictionaries, and I want a pretty syntax for initializing the custom
namespaces. The fact that these namespaces
Christoph Zwerschke wrote:
Alex Martelli wrote:
Sathyaish wrote:
I tried it on the interpreter and it looks like it is the to the power
of operator symbol/function. Can you please point me to the formal
definition of this operator in the docs?
http://docs.python.org/ref/power.html
David Bear wrote:
I was wondering if anyone has written an apache config file parser in
python. There seem to be a number of perl mods to do this. But I don't seem
to be able to find anything in python.
--
David Bear
-- let me buy your intellectual property, I want to own your thoughts --
Georg Brandl wrote:
Hi,
can someone please tell me that this is correct and why:
class C(object):
... pass
...
c = C()
c.a = 1
c.__dict__
{'a': 1}
c.__dict__ = {}
c.a
Traceback (most recent call last):
File stdin, line 1, in ?
AttributeError: 'C' object has no
-- http://dabodev.com
Ziga Seilnacht
--
http://mail.python.org/mailman/listinfo/python-list
RayS wrote:
I've begun a Python module to provide a complete interface to the
Meade LX200 command set, and have searched for a style/development
guide for Python Lib/site-packages type modules, but only saw guides
for C-modules. I realize that I need to make some changes to follow
Russ wrote:
I know that python packages are available for representing physical
units, but I am getting frustrated trying to find them and determine
which is the best.
Where can I find a good package that does this? Thanks.
Unum is a special package just for this purpose:
.
Ziga Seilnacht
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http://mail.python.org/mailman/listinfo/python-list
R. Bernstein wrote:
.
.
.
which is perhaps is a little more honest since one is not really in a
file called string. However the way the debugger gets this *is*
still a little hoaky in that it looks for something in the frame's
f_code.co_filename *called* string. And from that it *assumes* this
Fuzzyman wrote:
Does anyone know how to use _winreg to get path information (location
of install) for all versions of Python installed (and also which is the
most recent) ?
This should probably work:
import _winreg
def get_subkey_names(reg_key):
index = 0
L = []
while True:
Sorry, the previous post is wrong. I mixed the function names.
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Paul Watson wrote:
.
.
.
I need to call GetVersionInfo() and handle VERSIONINFO information. I
thought that distutils might have something, but I do not see it yet.
Any suggestions?
This information is provided with sys.getwindowsversion().
--
Jon Guyer wrote:
This is a fake line to confuse the stupid top-posting filter at gmane
We have a rather complicated class that, under certain circumstances, knows
that it cannot perform various arithmetic operations, and so returns
NotImplemented. As a trivial example:
class my:
You can also just use:
t.dynamic = dynamic.__get__(t)
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Never mind, I forgot that class inheritance tree is a tree.
Resulting type of adding Broken and Working from previous
example would also depend on the order of operands.
Ziga
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I am trying to write some classes representing the quaternion number.
I wrote a base class, which implements only the numerical interface,
and a few subclasses, which provide methods for their specific domain.
Since the operator methods will be the same for all these classes,
the base class
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