Hi everyone,
I have released bitstream, a Python library to manage binary data (at the byte
or bit level), hopefully without the pain that this kind of thing usually
entails :)
If you have struggled with this topic in the past, please take a look at the
documentation (http://boisgera.github.io
Le mardi 6 mars 2018 00:29:25 UTC+1, Roel Schroeven a écrit :
> Sébastien Boisgérault schreef op 5/03/2018 20:05:
> > I have released bitstream, a Python library to manage binary data (at the
> > byte or bit level),
> > hopefully without the pain that this kind of
Hi Lawrence,
Le mardi 6 mars 2018 01:20:36 UTC+1, Lawrence D’Oliveiro a écrit :
> On Tuesday, March 6, 2018 at 8:06:00 AM UTC+13, Sébastien Boisgérault wrote:
> > I have released bitstream, a Python library to manage binary data
> > (at the byte or bit level), hopefully without the
Le mardi 6 mars 2018 09:26:50 UTC+1, Sébastien Boisgérault a écrit :
> Le mardi 6 mars 2018 00:29:25 UTC+1, Roel Schroeven a écrit :
> > Sébastien Boisgérault schreef op 5/03/2018 20:05:
> > > I have released bitstream, a Python library to manage binary data (at the
>
Le mardi 6 mars 2018 10:23:02 UTC+1, Lawrence D’Oliveiro a écrit :
> On Tuesday, March 6, 2018 at 9:59:55 PM UTC+13, Sébastien Boisgérault wrote:
> >
> > Le mardi 6 mars 2018 01:20:36 UTC+1, Lawrence D’Oliveiro a écrit :
> >
> >> On Tuesday, March 6, 2018 a
Le mardi 6 mars 2018 11:15:15 UTC+1, Terry Reedy a écrit :
> On 3/6/2018 3:58 AM, Sébastien Boisgérault wrote:
> > Hi Lawrence,
> >
> > Le mardi 6 mars 2018 01:20:36 UTC+1, Lawrence D’Oliveiro a écrit :
> >> On Tuesday, March 6, 2018 at 8:06:00 AM UTC+13, Séb
Simulink is a framework widely used by the control engineers ...
It is not *perfect* but the ODEs piece is probably the best
part of the simulator. Why were you not convinced ?
You may also have a look at Scicos and Ptolemy II. These
simulators are open-source ... but not based on Python.
Cheers
so I've heard that Scilab was developed in Fortran in a way which
> make it rigid and that the sources are poorly documented, not a good
> sign for an open source software (and Scilab isn't 'Free' for the FSF).
>
> Regards,
>
>
> *** REPLY SEPARATOR **
Nathan Pinno a écrit :
> Hi all,
>
> What's wrong with the following code? It says there is name error, that
> random is not defined. How do I fix it?
Add "import random" at the top of your file
Cheers,
SB
> # Plays the guessing game higher or lower.
> # Originally written by Josh Cogli
Hi,
Has anybody already implemented a full ANSI C parser
with John Aycock's spark module ?
(spark : http://pages.cpsc.ucalgary.ca/~aycock/spark/)
Cheers,
SB
--
http://mail.python.org/mailman/listinfo/python-list
Hi,
The sys.stdout stream behaves strangely in my
Python2.4 shell:
>>> import sys
>>> sys.stdout.write("")
>>> sys.stdout.write("\n")
>>> sys.stdout.write("\n")
>>> sys.stdout.flush()
[...nothing...]
Have you ever seen sys.stdout behave l
Tiissa,
Thanks for your answer. The execution of your example leads to a
'aaa' display during 2 secs, before it is erased by the prompt.
This behavior is standard ? The standard output is not supposed
to *concatenate* the 'aaa' and the '>>>' ?
SB
--
http://mail.python.org/mailman/listinfo/pyt
Robert Kern wrote:
> Sébastien Boisgérault wrote:
> > Tiissa,
> >
> > Thanks for your answer. The execution of your example leads to a
> > 'aaa' display during 2 secs, before it is erased by the prompt.
> >
> > This behavior is standard ? The st
Fredrik Lundh wrote:
> Sébastien Boisgérault wrote:
>
> > Thanks for your answer. The execution of your example leads to a
> > 'aaa' display during 2 secs, before it is erased by the prompt.
> >
> > This behavior is standard ? The standard output is no
Fredrik Lundh a écrit :
> > what "python shell" are you using, and what platform are you running
> > it on? here's what I get on a standard Unix console:
> >
> import sys
> sys.stdout.write("")
> > >>> sys.stdout.write("\n")
> >
> sys.stdout.write("\n")
>
Jorgen Grahn a écrit :
> On 9 Sep 2005 03:40:58 -0700, Sébastien Boisgérault <[EMAIL PROTECTED]> wrote:
> >
> > Fredrik Lundh wrote:
> >> Sébastien Boisgérault wrote:
> >>
> >> > Thanks for your answer. The execution of your example leads to
Hi all,
Can anybody tell me why I can't load the fpectl module in my Python
interpreter:
>>> import fpectl
Traceback: ...
...
ImportError: No module named fpectl
My platform is Linux (Mandrake 10.x) + Python2.4, built from the
(python.org) sources and configured with the --with-fpectl option.
A
Thanks for this answer.
Did you forward this info to python-dev ?
Cheers,
SB
--
http://mail.python.org/mailman/listinfo/python-list
Good ! And thanks for the link. I had not noticed the warning "fpectl
module is dangerous" before.
I am a bit sad that the floating-point issue is disappearing from the
*active topics* list ...
Cheers,
SB
--
http://mail.python.org/mailman/listinfo/python-list
Hi,
Can anybody come up with a sensible argument that would explain
why the following test should fail ? (Expected: nothing, Got: 42).
cheers,
S.B.
#!/usr/bin/env python
import doctest
def test():
"""
>>> print 42 #doctest: +ELLIPSIS
...
Doh ! Obviously ... too bad.
I guess that I could set doctest.ELLIPSIS_MARKER to "[...]" to
distinguish
the two usages of "...". (The "..." used for multiline statements is
hard-coded
into a regular expression pattern).
But it feels too hackish, ELLIPSIS_MATKER being not described in the
docs ..
Done.
--
http://mail.python.org/mailman/listinfo/python-list
Robert Kern wrote:
> J wrote:
> > I will just jump in an use NumPy. I hope this one will stick and evolve
> > into the mother of array packages.
> > How stable is it ? For now I really just need basic linear algebra.
> > i.e. matrix multiplication, dot, cross etc
Same concern for me.
I discovere
Hi,
Could anyone explain me how the python string "é" is mapped to
the binary code "\xe9" in my python interpreter ?
"é" is not present in the 7-bit ASCII table that is the default
encoding, right ? So is the mapping "é" -> "\xe9" portable ?
(site-)configuration dependent ? Can anyone have somet
Fredrik Lundh wrote:
> in the iso-8859-1 character set, the character é is represented by the code
> 0xE9 (233 in decimal). there's no mapping going on here; there's only one
> character in the string. how it appears on your screen depends on how you
> print it, and what encoding your terminal
Jack a écrit :
> If Python is not the best candidate for embedded systems because
> of the size, what (scripting) language would you recommend?
>
> PHP may fit but I don't quite like the language. Anything else?
> Loa is small but it does not seem to be powerful enough.
You mean Lua ? Not powerfu
I guess I am doing something wrong ... Any clue ?
>>> from elementtree.ElementTree import *
>>> element = Element("string", value=u"\x00")
>>> xml = tostring(element)
>>> XML(xml)
Traceback (most recent call last):
File "", line 1, in ?
File "/usr/lib/python2.4/site-packages/elementtree/Eleme
Richard Brodie wrote:
> "Sébastien Boisgérault" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
>
> >>>> element = Element("string", value=u"\x00")
>
> I'm not as familiar with elementtree.ElementTree as I
Martin v. Löwis wrote:
> Sébastien Boisgérault schrieb:
> > I am trying to embed an *arbitrary* (unicode) strings inside
> > an XML document. Of course I'd like to be able to reconstruct
> > it later from the xml document ... If the naive way to do it does
> > no
Robert Kern wrote:
> Martin Manns wrote:
> > Hello,
> >
> > Is there any library that allows employing max-plus dioids in
> > python (e.g. based on numpy/scipy)?
>
> Google says "no" and I haven't heard of any, so I imagine that there aren't.
> There might be something buried in some of the control
Very good hint ! I wouldn't have found it alone ...
I have to study the doc, but the "THE DFA MATCHING ALGORITHM" may do
what I need Obviously, I didn't expect the Perl-Compatible Regular
Expressions to implement
"an alternative algorithm, provided by the pcre_dfa_exec() function,
that operates in
Paddy a écrit :
> maybe this: http://www.pcre.org/pcre.txt and ctypes might work for you?
Well finally, it doesn't fit. What I need is a "longest match" policy
in
patterns like "(a)|(b)|(c)" and NOT a "left-to-right" policy.
Additionaly,
I need to be able to obtain the matched ("captured") subst
John Machin wrote:
> On 29/05/2006 7:46 AM, Sébastien Boisgérault wrote:
> > Paddy a écrit :
> >
> >> maybe this: http://www.pcre.org/pcre.txt and ctypes might work for you?
> >
> > Well finally, it doesn't fit. What I need is a "longest match" po
aljosa wrote:
> i searched on google and found http://videocapture.sourceforge.net/
> before i posted here.
yup.
> videocapture has no docs
With the API docs in the ".zip" and the examples provided, you
should be able to handle it.I did :)
> and doesn't provide additional options like
> motion
Jeez, 12 posts in this IEEE 754 thread, and still
no message from uncle timmy ? ;)
Please, we need enlightenment here and *now* :)
platform-dependent accident'ly yours,
SB
--
http://mail.python.org/mailman/listinfo/python-list
Steven Bethard a écrit :
> The advantage of a functional form over a method shows up when you write
> a function that works on a variety of different types. Below are
> implementations of "list()", "sorted()" and "join()" that work on any
> iterable and only need to be defined once::
>
> [... skip
John Salerno a écrit :
> I've been doing a little studying of ElementTree and it doesn't seem
> very satisfactory for writing XML files that are properly
> formatted/indented. I saw on the website that there is an
> indent/prettyprint function, but this isn't listed in the Python docs
> and I did
On Nov 16, 10:46 pm, "John Henry" <[EMAIL PROTECTED]> wrote:
> Bill Gates will have you jailed! :-)
>
> On a more serious note, is there any alternative to Simulink though?
Ptolemy II. Java stuff in the core but components may be written in
Python
http://ptolemy.eecs.berkeley.edu/ptolemyII/
htt
Hi,
Did anyone managed to change the code font family/size
in Pydev (Python Editor Plugin for Eclipse) ? I found how
to change the color mapping (Windows/Preference/Pydev)
but did not found the font setting.
Cheers,
SB
--
http://mail.python.org/mailman/listinfo/python-list
On Nov 24, 9:42 pm, tool69 <[EMAIL PROTECTED]> wrote:
> Sébastien Boisgérault a écrit :> Hi,
>
> > Did anyone managed to change the code font family/size
> > in Pydev (Python Editor Plugin for Eclipse) ? I found how
> > to change the color mapping (Windows/Prefer
Hi all,
The unicode code points in the -001F range --
except newline, tab, carriage return -- are not legal
XML 1.0 characters.
Attempts to serialize and deserialize such strings
with ElementTree will fail:
>>> elt = Element("root", char=u"\u")
>>> xml = tostring(elt)
>>> xml
''
>>> from
On Dec 11, 4:51 pm, "Fredrik Lundh" <[EMAIL PROTECTED]> wrote:
> Sébastien Boisgérault wrote:
> > Could anyone comment on the rationale behind
> > the current behavior ? Is it a performance issue,
> > the search for non-valid unicode code points being
> &g
Laszlo Nagy wrote:
> Do you know an open source lib that can do $subject?
Fast google query, uncheked, leads to:
- XSV: http://www.ltg.ed.ac.uk/~ht/xsv-status.html
- libxml : http://codespeak.net/lxml/
Cheers,
SB
--
http://mail.python.org/mailman/listinfo/python-list
On Dec 13, 2:28 pm, Laszlo Nagy <[EMAIL PROTECTED]> wrote:
> > Fast google query, uncheked, leads to:
>
> > - XSV:http://www.ltg.ed.ac.uk/~ht/xsv-status.htmlI tried this before.
> > Unfortunately, xsv is not officially supported on
> my system (FreeBSD 6.1) :-(> - libxml :http://codespeak.net
Stefan Behnel wrote:
> RelaxNG support in libxml2 is pretty much perfect, BTW.
The *potential* issue I mentioned before with Relax NG
validation in libxml2 does *NOT* exist.
I double-checked with Jing and my RelaxNG file was
indeed incorrect ... (the "recursive reference outside
elements" kind
Hi,
ET being ElementTree in the following code, could anyone explain
why it fails ?
>>> xml = ET.tostring(ET.Element("root"), "UTF-16")
>>> xml
"\n<\xff\xfer\x00o\x00o\x00t\x00
/>"
>>> ET.fromstring(xml)
Traceback (most recent call last):
...
xml.parsers.expat.ExpatError: encoding specified in X
On Dec 19, 10:49 am, Fredrik Lundh <[EMAIL PROTECTED]> wrote:
> Sébastien Boisgérault wrote:
> > ET being ElementTree in the following code, could anyone explain
> > why it fails ?I'm afraid the standard serializer in 1.2 only supports
> > ASCII-compatible
>
Robert Kern wrote:
> Sébastien Boisgérault wrote:
>
> > By the way, I tried numpy 0.9.4 10 minutes ago and guess
> > what ? 'eigenvalue' is broken too ... (hangs forever)
>
> On what platform?
Linux, Mandriva 2006 (gcc 4.0.1, etc.)
> Are you linking against a
[EMAIL PROTECTED] wrote:
> Robert Kern wrote:
> > Sébastien Boisgérault wrote:
> >
> > > By the way, I tried numpy 0.9.4 10 minutes ago and guess
> > > what ? 'eigenvalue' is broken too ... (hangs forever)
> >
> > On what platform?
Robert Kern wrote:
> Sébastien Boisgérault wrote:
> > Robert Kern wrote:
> >
> >>Sébastien Boisgérault wrote:
> >>
> >>>By the way, I tried numpy 0.9.4 10 minutes ago and guess
> >>>what ? 'eigenvalue' is broken too ... (hangs fo
Thomas Girod a écrit :
> Hi.
>
> I think I'm missing something about multiple inheritance in python.
>
> I've got this code.
>
> class Foo:
> def __init__(self):
> self.x = "defined by foo"
> self.foo = None
>
> class Bar:
> def __init__(self):
> self.x = "defined
(Forwarded from Python bug tracker)
[ 1192554 ] doctest's ELLIPSIS and multiline statements
Tim Peters:
[...]
doctest has few syntax requirements, but the
inability to start an expected output block with "..." has
always been one of them, and is independent of the
ELLIPSIS gimmick. I doubt this
Have a look at Epydoc (http://epydoc.sourceforge.net/), a documentation
system
that generates HTML and PDF docs. Plain text, Javadoc,
ReStructuredText,
and Epytext docstrings are handled gracefully.
ReStructuredText (or a suitable subset of RST) is probably the best
choice IMHO.
SB
--
http://m
You mean private, protected, public, that kind of stuff ?
They do not exist in Python. Conventionally if you don't want
the user of a class to access a method or attribute, you use
the prefix _ ;
class K(object):
_a = 1
def __init__(self, val):
self.arg = val
self._hidde
Yup ?!? Weird ... especially as:
>>> id(c.f) == id(C.__dict__['f'].__get__(c,C))
True
I was pretty sure that 'id(a) == id(b)' iff 'a is b' ...
I thought initially that you had two *copies* of the
same method bot obviously it's not true ...
SB
--
http://mail.python.org/mailman/listinfo/python
Jeff Epler wrote:
> > >>> id(c.f) == id(C.__dict__['f'].__get__(c,C))
> > True
>
> Here, c.f is discarded by the time the right-hand-side of == is
> executed. So the object whose id() is being calculated on the
> right-hand-side could turn out to be the same, since the two objects
> have disjoint
http://www.pycon.org/talks/
Cheers,
SB
--
http://mail.python.org/mailman/listinfo/python-list
[EMAIL PROTECTED] wrote:
[...]
> In some cases there is a further complication: module importing
through
> an indirect mechanism, like: exec "from " + xxx + " import *".
Don't do that. Please ;). If you need too import some modules based
on the module name, stored in a string, consider the using
Christopher J. Bottaro wrote:
> [...]
> Funny, the con of Python (documentation) is PHP's strong point.
> The PHP manual is extremely easy to navigate and its search feature
> works great. Contrast that with Python, where you have to use "the
> tutorial" as the manual. Also, the tutorial is just t
Any idea why the 'options' object in
# optparse stuff
(options, args) = parser.parse_args()
is not/couldn't be a real dict ? Or why at least it
does not support dict's usual methods ?
The next move after a parse_args is often to call
a method 'do_stuff' with the args and options and
I'd like to
"Manual" == scope of the *Lib Reference* + informal style of the
*Tutorial*,
Right ?
Consider non-official manuals such as:
+ http://diveintopython.org/toc/index.html (free)
+ python in a nutshell
+ python cookbook
+ etc.
Cheers,
SB
--
http://mail.python.org/mailman/listinfo
Christopher J. Bottaro wrote:
> [...]
> Cuz I think the Language Reference is really more of a grammer
reference and
> far too technical to look up simple things like "how to declare a
> function".
>
> I guess what I'm trying to say is that there is no manual (for the
language
> itself, not the
Steven Bethard wrote:
> Sébastien Boisgérault wrote:
> > Any idea why the 'options' object in
> >
> > # optparse stuff
> > (options, args) = parser.parse_args()
> >
> > is not/couldn't be a real dict ? Or why at least it
> > does not s
> I can usually end up where I want to be by picking up my copy of
_Python
> in a Nutshell_. 95% of the time I can find what I want in there or
from
> there.
This book is really great. Could anybody convince Alex Martelli to
basically make it freely available to the world ? <0.9 wink>.
I would
>
> code='"""\n>>> n\n6\n"""\nn=6\nimport doctest\ndoctest.testmod()'
> exec(code)
>
Remove 'doctest.tesmod()' and the import from your 'code' string.
]]] exec(code)
]]] import doctest
]]] doctest.testmod()
should do the trick.
Cheers,
SB
--
http://mail.python.org/mailman/listinfo/pytho
Not in the core language or the std library.
However, if you are insterested in high-precision
computations, gmpy may be useful:
http://sourceforge.net/projects/gmpy/
To be honest, I have never used it ;). A review
would be appreciated.
Regards,
SB
--
http://mail.python.org/mailman/listinfo
Terry Reedy a écrit :
> [...]
> Last I read, in CPython, the float type encapsulates a C double.
> So, does any C compiler implements doubles as 80 bit floats?
I seriously doubt it.
> Or, if it has 64 bit
> doubles and 80 bit long doubles, are the latter transparently
> substitutible for the form
Search for:
+ fpconst / PEP 754
+ Tim Peters IEEE 754 accident
"""what-the-world-needs-now-is-nannanny.py-ly y'rs"" - SB
--
http://mail.python.org/mailman/listinfo/python-list
Martin v. Löwis a écrit :
> Andreas Beyer wrote:
> > How do I find out if NaN, infinity and alike is supported on the
current
> > python platform?
>
> To rephrase Sebastian's (correct) answer: by
>
> 1. studying the documentation of the CPU vendor
> 2. studying the documentation of the compiler ve
Nico,
[EMAIL PROTECTED] seems to be a good place to post
questions related to Python if you intend to use
french.
-> http://www.aful.org/wws/arc/python/
((
des questions rédigées en français sont plus
à leur place sur des liste de diffusions
nationales ...
))
Regards,
SB
--
http:
Crispen a écrit :
> I am having trouble using the ControlDesk automation libraries in
> python. In particluiar running the automation in a thread. My code is
> as follows, is keeps coming up with this strange error. Any help would
> be great.
>
> Crispen
>
> import cdacon
> from time import sleep
>
Even
class A:
pass
should do the trick. Only the instance attributes are saved by a
pickle,
not the methods or the class itself. The unpickler tries to merge the
saved data and the class/method info that is not saved to recreate
the fully functional instance... but of course this info
fscked wrote:
> How do I go about creating the XML prologue like I want it to be?
> Specifically, I am trying to add encoding and some namespace stuff.
The XML declaration and the DTD that may appear in the prolog are
optional.
[22]prolog ::= XMLDecl? Misc* (doctypedecl Misc*)?
[23]XMLD
On Nov 26, 8:46 pm, "Wang, Harry" <[EMAIL PROTECTED]> wrote:
> The gnosis xml libs should not be version specific, but when I try to use
> Python 2.5, I am getting "not well formed (invalid token)" errors.
>
> Harry
Could you show us a simple example that exhibits this behavior
please ?
SB
--
h
> Also, can you elaborate on what (if anything) it is about Matlab that
> you feel you can't replicate in Python? Are you aware of matplotlib and
> numpy?
The features provided by some matlab 'toolboxes' (libraries in
matlab-speak)
are lacking, and are beyond what numpy + scipy may provide. Some
Hi,
I'm searching for a POSIX 1003.2 compatible regular expression engine.
The Python binding "pregex" by Neal Becker may do the job, but I did
not manage to download it as the original link
ftp://ftp.ctd.comsat.com/pub/
seems dead.
Does any old-timer () have a copy of this package ?
Cheers,
SB
Frank Wierzbicki and Ted Leung have been hired by Sun. Frank is a
key Jython developer and is specifically hired to work full time on
Jython, a version of the Python interpreter that runs on top of the
JVM and provides full access to Java libraries. After a period where
the development had slowed,
77 matches
Mail list logo
