New submission from Marcos Dione :
I'm trying to add external entities support to xmltodict[1]. For that I
extended the handler to have a ExternalEntityRefHandler handler. After reading
a couple of files, the script lock in a tight loop.
I ran the script with gdb (!!) and found that
Marcos Dione added the comment:
Thanks for all the examples, I'm convinced.
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resolution: -> not a bug
stage: -> resolved
status: open -> closed
versions: +Python 3.4, Python 3.5, Python 3.6
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Python tracker
<https:
New submission from Marcos Dione :
Following https://blog.lerner.co.il/pythons-str-isdigit-vs-str-isnumeric/, we
have this:
Python 3.8.0a1+ (heads/master:001fee14e0, Feb 20 2019, 08:28:02)
[GCC 8.2.0] on linux
Type "help", "copyright", "credits" or "licens
Marcos Dione added the comment:
Thanks Gianpaolo for pushing for this. Great job.
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Python tracker
<https://bugs.python.org/issue33671>
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Python-bug
Marcos Dione added the comment:
I'm really sorry, but I don't have time to continue with this (new daughter!).
Can someone else pick it up?
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Changes by Marcos Dione :
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components: +Library (Lib)
type: -> enhancement
versions: +Python 3.7
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Python tracker
<http://bugs.python.org/issue28273>
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_
New submission from Marcos Dione:
According to the documentation, the second parameter for os.waitpid(), called
options, must be most of the time 0. So why not make it the default value?
The attached patch implements the proposed change, which is API compatible with
current usages of the
Changes by Marcos Dione :
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versions: +Python 3.3, Python 3.4
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Marcos Dione added the comment:
New patch following comments from SilentGhost.
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Added file: http://bugs.python.org/file44467/fix_28019.diff
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Changes by Marcos Dione :
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versions: +Python 3.3, Python 3.4
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Marcos Dione added the comment:
Here's a first approach on fixing this bug. I'm not sure how to handle the case
where step=1.0.
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keywords: +patch
Added file: http://bugs.python.org/file44466/fix_28019.diff
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New submission from Marcos Dione:
If the `step` parameter for `itertools.count()` rounds to 1 (f.i., 1.1,
1.437643, 1.9), then it fallsback to fast (integer) mode and increases the
counter by 1. Here's an example:
Python 3.6.0a4+ (default:ddc95a9bc2e0+, Sep 8 2016, 14:46:19)
>&
Marcos Dione added the comment:
Fixed extra space and semicolon (?!?!). Also, I'm getting 500 errors from
riedvelt when I try to reply to comments.
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Added file: http://bugs.python.org/file43688/copy_file_range.diff
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Marcos Dione added the comment:
Another version:
* Changed availability to kernel type, version and date.
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Added file: http://bugs.python.org/file43640/copy_file_range.diff
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Python tracker
<http://bugs.python.org/issue26
Marcos Dione added the comment:
New version:
* Adds a new test for offset parameters.
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Added file: http://bugs.python.org/file43639/copy_file_range.diff
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Marcos Dione added the comment:
* Updated the patch to latest version.
* PEP-8'ed the tests.
* Dropped flags from the API but not the internal function.
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Added file: http://bugs.python.org/file43624/copy_file_range.diff
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Marcos Dione added the comment:
ENOSYS catching fixed.
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Added file: http://bugs.python.org/file43319/copy_file_range.diff
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Python tracker
<http://bugs.python.org/issue26
Marcos Dione added the comment:
Fixed the last comments, including comparing what was written to the original
data, but only to the length of what was actually written. I'm just not sure if
the way to handle the syscall not existing is ok.
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Added file: http://bugs.pytho
Marcos Dione added the comment:
I added a couple of unit tests, which lead me to fix a couple of bugs (yay!).
I discarded the idea of removing any reference to flags.
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Added file: http://bugs.python.org/file43310/copy_file_range.diff
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Python
Marcos Dione added the comment:
I settled for s/in/src/ and s/out/dst/, fixed typos, made sure the docs are in
sync (parameters in the docstring were out of order), rephrased paragraph about
flags parameter and included the configure.ac code for detecting availability
of the syscall. I'm
Marcos Dione added the comment:
Sorry for the delay.
Based on suggestions in the mailing list, I changed the *count* handling as if
it were a ssize_t, and I added a note about ignored output parameters.
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title: Expose new copy_file_range() syscal in os module. -> Expose
Marcos Dione added the comment:
I fixed most of the type problems, except that I'm not sure how to convert to
size_t. Someone suggested to convert with 'n', then check if it's negative and
correct. I'll ask the mailing list for better suggestions.
I also noted that ru
Marcos Dione added the comment:
> Yes, having a high-level version of copy_file_range() that falls back to
> copyfileobj() should be okay.
I'm not sure about this. For the moment c_f_o() is available only if the
syscall is there.
> I am wondering if it would be nice to
Marcos Dione added the comment:
I managed to modify the congigure.ac file so it includes the proper test. after
I run autoconf it generated the proper configure script, but I also needed to
run autoheaders (both run by make autoconf). This last command modified a
generated file that's i
Marcos Dione added the comment:
I'll do the copyfile() part once I'm convinced it doesn't break anything else.
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title: Expose new copy_file_range() syscal in os module and use it to improve
shutils.copy() -> Expose new copy_file_range() s
Marcos Dione added the comment:
> About changing copyfileobj(), here are some test cases which may help explain
> the compatibility problems:
I see, I was expecting something like that after reading
https://bugs.python.org/issue25063 's conclusions. I removed that part.
> Pe
Marcos Dione added the comment:
Updated the patch withe most of Martin Panter's and all vadium's comments.
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Added file: http://bugs.python.org/file42628/copy_file_range.diff
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Marcos Dione added the comment:
> I didn’t see any changes to the configure script in your patches. Did you
> make that change to define HAVE_COPY_FILE_RANGE yet?
I'm not really sure how to make the test for configure.ac. Other functions are
checked differently (availability of h
Changes by Marcos Dione :
Removed file: http://bugs.python.org/file42617/copy_file_range.diff
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Python tracker
<http://bugs.python.org/issue26826>
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Python-bug
Marcos Dione added the comment:
New version. Factoring the old method in a nested function also paves the way
to implement https://bugs.python.org/issue25156 .
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Added file: http://bugs.python.org/file42619/copy_file_range.diff
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Python tracker
Marcos Dione added the comment:
Hmm, I just noticed that it doesn't fallback to normal copy if the arguments
are not valid (EBADF, EXDEV). Back to the drawing board...
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Python tracker
<http://bugs.python.org/is
Marcos Dione added the comment:
Ok, I have a preliminary version of the patch. It has several parts:
* Adding the functionality to the os module, with docstring.
* Make shutil.copyfileobj() to use it if available.
* Modify the docs (this has to be done by hand, right?).
* Modify NEWS and ACKS
Marcos Dione added the comment:
Version without the NEWS and ACKS change.
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Added file: http://bugs.python.org/file42617/copy_file_range.diff
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Python tracker
<http://bugs.python.org/issue26
Changes by Marcos Dione :
Removed file: http://bugs.python.org/file42616/copy_file_range.diff
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Python tracker
<http://bugs.python.org/issue26826>
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Python-bug
Marcos Dione added the comment:
Then I don't know. My only worry is whether having the method local to os would
allow shutils.copy() to use it or not.
I will start by looking at other similar functions there to see to do it.
urandom() looks like a good starting
Marcos Dione added the comment:
Already there:
http://man7.org/linux/man-pages/man2/copy_file_range.2.html
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Python tracker
<http://bugs.python.org/issue26
Marcos Dione added the comment:
Debian Sid, arch Linux and Fedora FC24 (alpha) already have linux-4.5, others
would certainly follow soon. Meanwhile, I could start developing the patch and
we could review it when you think it's approp
New submission from Marcos Dione:
copy_file_range() has been introduced in the Linux kernel since version 4.5
(mid march 2016). This new syscall allows to copy data from one fd to another
without passing by user space, improving speed in most cases. You can read more
about it here:
https
New submission from Marcos Dione:
Linux kernel's new madvise() MADV_FREE[1] could be used in the memory allocator
to signal unused parts of the private heap as such, allowing the kernel use
those pages for resolving lowmem pressure situations. From a LWN article[2]:
[...] Rather
Marcos Dione added the comment:
with facundo we were tracking this bug down. mhammond is right about
that read() should allow 0 size responses, but the bug is that the
response is "not closed". HTTPResponse.read() says:
if amt is None:
# unbounded read
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