Paul Boddie wrote:
On the subject of other virtual machine implementations, I wonder what
happened to this one:
http://effbot.org/zone/pytte.htm
Fredrik? ;-)
so much code, so little time...
/F
--
http://mail.python.org/mailman/listinfo/python-list
On 12 Oct 2005, at 09:33, bruno modulix wrote:
Donn Cave wrote:
Quoth Fredrik Lundh [EMAIL PROTECTED]:
| Alex Stapleton wrote
|
| Except it is interpreted.
|
| except that it isn't. Python source code is compiled to byte
code, which
| is then executed by a virtual machine. if the
Um, sorry, but this isn't correct.Although there might be a slight bit of gray area, the simple difference between compiled and interpreted languages is that compiled languages produce a binary consisting of bytes that mean something specific to the CPU of the computer the program is running on.
Alex Stapleton wrote:
On 9 Oct 2005, at 19:04, Bruno Desthuilliers wrote:
Laszlo Zsolt Nagy a écrit :
(snip)
Do you want to know how many internal string operations are done inside
the Python interpreter? I believe it is not a useful information. There
are benchmarks testing the *real
Donn Cave wrote:
Quoth Fredrik Lundh [EMAIL PROTECTED]:
| Alex Stapleton wrote
|
| Except it is interpreted.
|
| except that it isn't. Python source code is compiled to byte code, which
| is then executed by a virtual machine. if the byte code for a module is up
| to date, the Python
Steve Holden wrote:
And we definitely need agile in there. Bugger, I'll go out and come in
again ...
Used in the same breath as the word bugger, I'm not sure the phrase
go out and come in again is entirely appropriate for a family forum. ;-)
But I'm also not sure I ought to post that to the
Peter Hansen wrote:
But I'm also not sure I ought to post that to the group, so I'll spare
them and just inflict the thought on you!
Or, maybe I'll just fail to trim the newsgroup line and accidentally
post to the group anyway. Yes, that's just what I'll do.
Sorry folks. :-)
-Peter
--
Terry Hancock [EMAIL PROTECTED] (TH) wrote:
TH He's got to be talking about runtime name-binding. In
TH other words, when you refer to:
TH a.spam
TH the Python interpreter actually knows you labeled that attribute 'spam',
TH and the string is stored in a.__dict__ , so you can also access it
On Mon, 10 Oct 2005 16:47:35 -0700, Paul Boddie wrote:
The difficulty is that the target architecture in not realized in hardware.
Or isn't perhaps feasible/viable for hardware realisation: one of the
EuroPython speakers dangled the promise of hardware support for
high-level languages (the
On Mon, 10 Oct 2005 11:21:18 -0700, Donn Cave [EMAIL PROTECTED]
wrote:
Iron-
Python). is it still an interpreter if it generates machine code?
Is what an interpreter?
I am not very well acquainted with these technologies, but it sounds
like variations on the implementation of an
Fredrik Lundh [EMAIL PROTECTED] wrote:
Alex Stapleton wrote
Except it is interpreted.
except that it isn't. Python source code is compiled to byte code, which
is then executed by a virtual machine. if the byte code for a module is up
to date, the Python runtime doesn't even look at the
Donn Cave wrote:
Quoth Fredrik Lundh [EMAIL PROTECTED]:
| Alex Stapleton wrote
|
| Except it is interpreted.
|
| except that it isn't. Python source code is compiled to byte code, which
| is then executed by a virtual machine. if the byte code for a module is up
| to date, the Python
Ognen Duzlevski wrote:
I am curious, does this make a difference speed wise (aside
from loading time)? The python tutorial would seem to imply
that it does not:
From Python-Docs-2.4.2/tut/node8.html#SECTION00812
A program doesn't run any faster when it is read from a .pyc
Ditto to the below! I quite literally considered leaving the CS field until I found Python. Now my main job description is 'technical writing', but I get to use python at work (MoinMoin) and for all of my own computing needs.Cheers,KenOn 10-Oct-05, at 2:03 AM, Ron Adam wrote:If I was forced to go
In article [EMAIL PROTECTED],
Fredrik Lundh [EMAIL PROTECTED] wrote:
Donn Cave wrote:
| Except it is interpreted.
|
| except that it isn't. Python source code is compiled to byte code, which
| is then executed by a virtual machine. if the byte code for a module is
| up
| to
Fredrik,
but still some very valuable people write:
What is Python?
Python is an interpreted, interactive, object-oriented programming
language. It is often compared to Tcl, Perl, Scheme or Java.
taken from
http://www.python.org/doc/Summary.html
maybe someone could update that???
Harald
--
Donn Cave [EMAIL PROTECTED] writes:
I agree that there are many shades of grey here, but there's also a
real black that's sharply distinct and easy to find -- real native
code binaries are not interpreted.
Except when they are. Many machines are microcoded, which means your
real native code
On Saturday 08 October 2005 01:54 pm, Fredrik Lundh wrote:
Dave wrote:
Yes, I would like to know how many internal string operations are done
inside
the Python interpreter.
when you're doing what?
how do you define internal string operations, btw?
He's got to be talking about
Mike Meyer wrote:
Donn Cave [EMAIL PROTECTED] writes:
I agree that there are many shades of grey here, but there's also a
real black that's sharply distinct and easy to find -- real native
code binaries are not interpreted.
Except when they are. Many machines are microcoded, which means
In article [EMAIL PROTECTED], Mike Meyer [EMAIL PROTECTED]
wrote:
Donn Cave [EMAIL PROTECTED] writes:
I agree that there are many shades of grey here, but there's also a
real black that's sharply distinct and easy to find -- real native
code binaries are not interpreted.
Except when
Dennis Lee Bieber wrote:
I'd consider that BASIC to be a fully interpreted language, as the
tokens are still a one-for-one equivalence of the source code. Python,
UCSD, and Java are not one-for-one, so on that basis, they fit the
definition of a compiled language...
That's an interesting
Donn Cave [EMAIL PROTECTED] writes:
In article [EMAIL PROTECTED], Mike Meyer [EMAIL PROTECTED]
wrote:
Donn Cave [EMAIL PROTECTED] writes:
I agree that there are many shades of grey here, but there's also a
real black that's sharply distinct and easy to find -- real native
code binaries
Harald Armin Massa wrote:
What is Python?
Python is an interpreted, interactive, object-oriented programming
language. It is often compared to Tcl, Perl, Scheme or Java.
taken from
http://www.python.org/doc/Summary.html
maybe someone could update that???
Maybe we should add
On Monday 10 October 2005 01:21 pm, Donn Cave wrote:
In article [EMAIL PROTECTED],
I am not very well acquainted with these technologies, but it sounds
like variations on the implementation of an interpreter, with no
really compelling distinction between them. When a program is deployed
as
Peter Hansen wrote:
Harald Armin Massa wrote:
What is Python?
Python is an interpreted, interactive, object-oriented programming
language. It is often compared to Tcl, Perl, Scheme or Java.
taken from
http://www.python.org/doc/Summary.html
maybe someone could update that???
Maybe we
On Sat, 08 Oct 2005 10:14:25 -0700, Phillip J. Eby wrote:
So, without meaning to, the benchmark author has demonstrated something
important about Python, which is that writing the obvious thing in
Python tends to work correctly, even if it sometimes takes longer to
run than it would take for
Laszlo Zsolt Nagy a écrit :
Dave wrote:
Hello All,
I would like to gather some information on Python's runtime
performance. As far as I understand, it deals with a lot of string
objects. Does it require a lot string processing during program
execution? How does it handle such
On 9 Oct 2005, at 19:04, Bruno Desthuilliers wrote:
Laszlo Zsolt Nagy a écrit :
Dave wrote:
Hello All,
I would like to gather some information on Python's runtime
performance. As far as I understand, it deals with a lot of string
objects. Does it require a lot string processing
Alex Stapleton wrote
Except it is interpreted.
except that it isn't. Python source code is compiled to byte code, which
is then executed by a virtual machine. if the byte code for a module is up
to date, the Python runtime doesn't even look at the source code.
What is your point?
that some
Quoth Fredrik Lundh [EMAIL PROTECTED]:
| Alex Stapleton wrote
|
| Except it is interpreted.
|
| except that it isn't. Python source code is compiled to byte code, which
| is then executed by a virtual machine. if the byte code for a module is up
| to date, the Python runtime doesn't even look
Donn Cave wrote:
| Except it is interpreted.
|
| except that it isn't. Python source code is compiled to byte code, which
| is then executed by a virtual machine. if the byte code for a module is up
| to date, the Python runtime doesn't even look at the source code.
Fair to say that
On Sun, 09 Oct 2005 21:00:57 +, Dennis Lee Bieber wrote:
I'd consider that BASIC to be a fully interpreted language, as the
tokens are still a one-for-one equivalence of the source code. Python,
UCSD, and Java are not one-for-one, so on that basis, they fit the
definition of a
Steven D'Aprano wrote:
For what it is worth, Python is compiled AND interpreted -- it compiles
byte-code which is interpreted in a virtual machine. That makes it an
compiling interpreter, or maybe an interpreting compiler, in my book.
Good points, and in addition to this, the individual byte
Dave wrote:
Hello All,
I would like to gather some information on Python's runtime
performance. As far as I understand, it deals with a lot of string
objects. Does it require a lot string processing during program
execution? How does it handle such time-consuming operations? Is there
Laszlo Zsolt Nagy wrote:
There are benchmarks testing the *real performance* of Python.
For example: http://www.osnews.com/story.php?news_id=5602
Just the observation that there are 166 comments to that article would
suggest that the methodology employed was somewhat debatable. (I don't
need
Laszlo Zsolt Nagy wrote:
Dave wrote:
Hello All,
I would like to gather some information on Python's runtime
performance. As far as I understand, it deals with a lot of string
objects. Does it require a lot string processing during program
execution? How does it handle such
Yes, I would like to know how many internal string operations are done inside the Python interpreter.
Thanks.Laszlo Zsolt Nagy [EMAIL PROTECTED] wrote:
Dave wrote: Hello All, I would like to gather some information on Python's runtime performance. As far as I understand, it deals with a lot of
Paul Boddie wrote:
There are benchmarks testing the *real performance* of Python.
For example: http://www.osnews.com/story.php?news_id=5602
Just the observation that there are 166 comments to that article would
suggest that the methodology employed was somewhat debatable. (I don't
need to
Dave wrote:
Yes, I would like to know how many internal string operations are done inside
the Python interpreter.
when you're doing what?
how do you define internal string operations, btw?
/F
--
http://mail.python.org/mailman/listinfo/python-list
Hello All,
I would like to gather some information on Python's runtime performance. As far as I understand, it deals with a lot of string objects.Does it require a lot string processing during program execution? How does it handle such time-consuming operations? Is there a way to find out how
Hi,
I used python and PIL to capture image from a digital camera,
It seems like it took more than 1 second to capture a 1280x1024 image,
however, the demo capturing application from the company (coded by VB)
took only .2s or less for one image with the same size.
Don't know why python and PIL is
You've gotta framinate your capacitor to speed it up.
(Translated: With no information about your camera, memory card, type
of connection, platform, method of access, version of python, version
of PIL, or code, how in the world could I help you to diagnose your
loosely-specified problem? Ask
On 9/29/05, James Hu jhu at metrigenix.com wrote:
Hi,
I used python and PIL to capture image from a digital camera,
It seems like it took more than 1 second to capture a 1280x1024 image,
however, the demo capturing application from the company (coded by VB)
took only .2s or less for
Have u been used such camera with PIL before?
im_1= Image.fromstring(I, datasize, buf, 'raw', 'I;16')
running on a 700 MHz box:
c:\ timeit -s import Image -s data = 1344*1024*2*'x'
im = Image.fromstring('I', (1344, 1024), data, 'raw', 'I;16')
10 loops, best of 3: 102 msec per loop
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