Le 12/05/14 10:14, lgabiot a écrit :
So if I follow you, if the Pyaudio part is "Non-blocking" there would be
a way to make it work without the two threads things. I'm back to the
Pyaudio doc, and try to get my head around the callback method, which
might be the good lead.
Le 12/05/14 08:13, Stefan Behnel a écrit :
This sounds like a use case for double buffering. Use two buffers, start
filling one. When it's full, switch buffers, start filling the second and
process the first. When the second is full, switch again.
Note that you have to make sure that the process
Le 12/05/14 07:58, Chris Angelico a écrit :
Well, the first thing I'd try is simply asking for more data when
you're ready for it - can you get five seconds' of data all at once?
Obviously this won't work if your upstream buffers only a small
amount, in which case your thread is there to do that
Le 12/05/14 07:41, Chris Angelico a écrit :
The GIL is almost completely insignificant here. One of your threads
will be blocked practically the whole time (waiting for more samples;
collecting them into a numpy array doesn't take long), and the other
is, if I understand correctly, spending most
Le 11/05/14 17:40, lgabiot a écrit :
I guess if my calculation had to be performed on a small number of
samples (i.e. under the value of the Pyaudio buffer size (2048 samples
for instance), and that the calculation would last less than the time it
takes to get the next 2048 samples from Pyaudio
Le 11/05/14 16:40, Roy Smith a écrit :
In article <536f869c$0$2178$426a7...@news.free.fr>,
lgabiot wrote:
Hello,
Le 11/05/14 16:40, Roy Smith a écrit :
If you are going to use threads, the architecture you describe seems
perfectly reasonable. It's a classic producer-consu
Hello,
I'd like to be able to analyze incoming audio from a sound card using
Python, and I'm trying to establish a correct architecture for this.
Getting the audio is OK (using PyAudio), as well as the calculations
needed, so won't be discussing those, but the general idea of being able
at (
Le 26/01/14 09:05, Peter Otten a écrit :
Please remember to cut and past the traceback next time.
What is wrong?
My crystal ball says that you have a
from __future__ import unicode_literals
statement at the beginning of the module. If I'm right try
row[b"filename"]
Thanks a lot for you
Hello,
using Python 2.7.6
I try to access a sqlite database using keyword lookup instead of
position (much more easy to maintain code), but it always fail, with the
error:
Index must be int or string
I have created the database, populated it, and here is the code that
tries to retrieve the
Le 23/01/14 10:04, Mark Lawrence a écrit :
No, you need to remember how to type xyz into your favourite search
engine. For this case xyz would be something like "python single
element tuple".
No big deal, but I don't think you are correct.
Problem was that for me I "knew" (it was erroneous o
Le 23/01/14 03:33, Chris Angelico a écrit :
On Thu, Jan 23, 2014 at 10:00 AM, Christian Gollwitzer wrote:
There might be another issue with the license of the library. Cairo is both
LGPL and MPL. For LGPL, only dynamic linking is without doubt, for MPL it
seems to be accepted to link statically
Thanks to all,
that was indeed the tuple issue!
the correct code is:
>>>cursor = conn.execute("SELECT filename, filepath FROM files WHERE
max_level
as was pointed out by many.
Sorry for missing such a silly point (well, a comma in fact). I'll learn
to read more seriously the doc, but I was r
I did similar operations on UPDATE instead of SELECT, and it works there.
Maybe my mind is fried right now, but I can't figure out the solution...
so maybe I should rename my post:
cannot use =, < with (?) in SELECT WHERE query ?
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Hello,
I'm building an application using a simple sqlite3 database.
At some point, I need to select rows (more precisely some fields in
rows) that have the following property: their field max_level (an INT),
should not exceed a value stored in a variable called threshold, where
an int is stored
thanks a lot for your very precise answer!
shortly, as I'm running out of time right now:
I've got here a lot of informations, so I'll dig in the directions you
gave me. It will be a good compiling exercise... (I'm really new at all
this).
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Le 22/01/14 23:09, Gregory Ewing a écrit :
We suspect that 8 Dihedral is actually a bot,
so you're *probably* wasting your time attempting
to engage it in conversation.
Thanks,
so that will be my first real experience of the Turing test!!!
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Le 22/01/14 18:31, 8 Dihedral a écrit :
Check the C source code generated
by Pyrex and check cython for what u
want, but I did try that out in any
mobile phone or flat panel
programming.
Thanks a lot for your answer.
I didn't use Pyrex or other tool, but wrote myself the C python
wrap
Hello,
working on OS X 10.8.5
Python 2.7
I've written a simple C extension for Python that uses the cairo graphic
library.
It works well, and I can call it from Python with no problem.
The only drawback is that I need to have the cairo library installed on
my system (so it seems my extension
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