After a successful but problematic experience with the QT Designer + python
combo, I decided that I needed something simpler (read completely in
python) for my lab applications with python linux-gpib bindings.
I am looking at PAGE, which while not pretty, seems simple and fast to work
with. How do
Madhusudan Singh wrote:
> Larry Bates wrote:
>
>> Can you give us an example. I don't know what two bit
>> hex means (takes at least 4 bits to make a hex digit).
>
> Like 64(base 16)=100.
> I am referring to 64 in the above.
>
>>
>> Now I'm
Larry Bates wrote:
> Can you give us an example. I don't know what two bit
> hex means (takes at least 4 bits to make a hex digit).
Like 64(base 16)=100.
I am referring to 64 in the above.
>
> Now I'm going to try to guess:
>
> If the data is binary then all you need to do is to
> use the str
Hi
I am using binascii.b2a_hex to convert some binary data to hex. The result
is a two bit hex representation (i. e., without the leading 0x). How do I
convert the resulting two bit representation into an integer ?
Thanks.
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Erik Max Francis wrote:
> Madhusudan Singh wrote:
>
>> Thanks. Now, a slightly more complicated question.
>>
>> Say I have two lists of floats. And I wish to generate a list of floats
>> that is a user defined function of the two lists.
>
> result = [sqrt
Steve Holden wrote:
> Madhusudan Singh wrote:
>> [EMAIL PROTECTED] wrote:
>>
>>
>>>Madhusudan> Is it possible to convert a very long list of strings to
>>>a Madhusudan> list of floats in a single statement ?
>>>
>>>Mad
[EMAIL PROTECTED] wrote:
>
> Madhusudan> Is it possible to convert a very long list of strings to a
> Madhusudan> list of floats in a single statement ?
>
> Madhusudan> I have tried float(x) and float(x[:]) but neither work. I
> Madhusudan> guess I would have to write a loop if t
Is it possible to convert a very long list of strings to a list of floats in
a single statement ?
I have tried float(x) and float(x[:]) but neither work. I guess I would have
to write a loop if there isn't a way.
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Further, if I use 131072 (2^17) as the length, I get an error :
Traceback (most recent call last):
File "takedata.py", line 74, in ?
x=sr.querytrca(srs,1,0,4000,131072)
File "/home/labmonkey/code/oledpmt/sr830.py", line 62, in querytrca
trca=sr.read(n)
File "/usr/lib/python2.3/site-p
python-gpib provides Gpib.py (see end of post) for Linux.
I am trying to use the method called read. I usually use it without
arguments (the default length being 512). However, I am trying to read in a
string with some 16,000 comma separated floating point numbers.
So, I have to pass a length par
I am querying an instrument in a measurement application.
The values are returned as IEEE format binary floating point numbers. There
are 4 bytes per point. Multiple points are not separated by any delimiter.
Is it possible to read these directly into a floating point array of the
size of the str
Robert Wierschke wrote:
> Madhusudan Singh schrieb:
>> Hi
>>
>> I have a python application that writes a lot of data to a bunch
>> of files
>> from inside a loop. Sometimes, the application has to be interrupted and
>> I find that a lot of
[EMAIL PROTECTED] wrote:
>
> Madhusudan> How do I flush the buffer and force python to write the
> Madhusudan> buffers to the files ? I intend to put this inside the
> loop.
>
> f = open("somefile", "w")
> f.write("foo")
> f.flush()
>
> Skip
Thanks !!
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Hi
I have a python application that writes a lot of data to a bunch of
files
from inside a loop. Sometimes, the application has to be interrupted and I
find that a lot of data has not yet been writen (and hence is lost). How do
I flush the buffer and force python to write the buffers to t
Hi
I was wondering how does one detect the above character. It is returned by
an instrument I am controlling via GPIB.
Thanks.
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Hi
I am looking to write a formatted string to a string variable :
Say I have 1.067e-01, I need to write 106.700 to some string.
In Fortran 95, this would be accomplished with a :
character(len=7) :: stringvar
real :: stringval
...
write(stringvar,'(f7.3)') stringval
How does one do somethin
Fernando Perez wrote:
> Madhusudan Singh wrote:
>
>> Madhusudan Singh wrote:
>>
>>> Hi
>>>
>>> I am using time.clock() to get the current time of the processor in
>>> seconds. For my application, I need really high resolution but currently
Fredrik Lundh wrote:
>> The code is :
>>
>> void Form3::getNPrange()
>> {
>
> what language is this?
Its python embedded in the designer workflow. pyuic extracts stuff from it,
and generates a python script from the ui.h file.
>
> if the callback code is Python, you should be able to add a pr
Hi
I am working with an application that I designed with the Designer > pyuic
workflow and I get the following error on trying to process the contents of
a combobox :
Traceback (most recent call last):
File "measure.py", line 908, in acquiredata
np=self.getNPrange()
File "measure.py", li
Bengt Richter wrote:
> windows or unix? time.time and time.clock seem to reverse roles as
> best-resolution time sources depending on which platform.
>
Linux.
time.time() seems to report (using %e to format the o/p) a fixed number of
the order ~1e9.
> If you have a pentium with a rdtsc instru
Madhusudan Singh wrote:
> Hi
>
> I am using time.clock() to get the current time of the processor in
> seconds. For my application, I need really high resolution but currently
> seem to be limited to 0.01 second. Is there a way to specify the
> resolution (say 1-10 microsecon
Hi
I am using time.clock() to get the current time of the processor in seconds.
For my application, I need really high resolution but currently seem to be
limited to 0.01 second. Is there a way to specify the resolution (say 1-10
microseconds) ? My processor is a 1.4 MHz Intel processor. Surely, i
Peter Maas wrote:
>> Thanks for the suggestion, but seems needlessly complicated for
> > something very simple.
>
> What is "very simple"? The problem or the solution? :) If you examine
The form of the solution.
> this suggestion more closely you will note that it is more or less
> the same as
Diez B. Roggisch wrote:
> I still don't see why default arguments like None won't do the trick.
> If The argument _can_
> be some value (let's say an int) or None, you still could go for a
> default value like () or any other value
> from a different domain.
"None" works perfectly. Someone else o
Peter Decker wrote:
> On 8/17/05, Madhusudan Singh <[EMAIL PROTECTED]> wrote:
>
>> I know how to set optional arguments in the function definition. Is there
>> an intrinsic function that determines if a certain argument was actually
>> passed ? Like the fortran
Dan Sommers wrote:
> On Wed, 17 Aug 2005 11:13:03 -0400,
> Madhusudan Singh <[EMAIL PROTECTED]> wrote:
>
>> I know how to set optional arguments in the function definition. Is
>> there an intrinsic function that determines if a certain argument was
>> actu
Benji York wrote:
> Madhusudan Singh wrote:
>> I know how to set optional arguments in the function definition. Is there
>> an intrinsic function that determines if a certain argument was actually
>> passed ? Like the fortran 95 present() logical intrinsic ?
>
> People
Diez B. Roggisch wrote:
> I don't have the details ready - but in the ASPN cookbook are recipes
> to e.g. figure insied a function f out how many results the caller of f
> expects - and act accordingly. This boils down to inspect the
> call-stack. So it ceratinly is possible.
>
> However, I'd say
Hi
I know how to set optional arguments in the function definition. Is there an
intrinsic function that determines if a certain argument was actually
passed ? Like the fortran 95 present() logical intrinsic ?
My required functionality depends on whether a certain argument is specified
at all. (Se
How does one enable dynamic autoscaling of the axes ?
I am using setAxisAutoScale in an application which acquires data, and when
the application ends, I do get correctly autoscaled axes, but not while the
measurement is in progress.
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TPJ wrote:
>> I should have added that my platform is Linux.
>
> In this case you shouldn't bother yourself with executables. Python is
> available on any major distribution.
>
> My Python apps are available as pyc files for Linux (and for those
> Windows users, who have Python installed) and as
Paolo Alexis Falcone wrote:
> On Sat, 13 Aug 2005 23:29:27 -0400, Madhusudan Singh wrote:
>
>> Hi
>>
>> I just finished developing an application using Qt Designer in Python
>> that uses pyqwt, gpib, etc. How does one create standalone executables
>
Hi
I just finished developing an application using Qt Designer in Python that
uses pyqwt, gpib, etc. How does one create standalone executables for
applications such as these ?
Thanks.
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Scott David Daniels wrote:
> Madhusudan Singh wrote:
>> I am using qwtplot to display a running plot :
>>
> The way I'd normally accomplish this is to separate the setup and use
> by defining a class:
>
How would one enable dynamic autoscaling of the axes ?
Many thanks for an excellent solution to the problem and clearing up my mind
about globals.
In some sense, Python globals seem to be a little like the COMMON statement
in the old Fortran 77 standard.
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Hi
I am relatively new to Python.
I am using Qt Designer to create a UI for a measurement application that I
use.
Everything seems to be clear but the use of globals (defined in the module
that is generated using pyuic, that contains the form class).
I am using qwtplot to display a running plot
Hi
Some of the functions I defined inside Qt Designer need to have some values
passed to them.
For instance :
Code :
void Form3::runningplot(n,plottitle,xname,x,y1name,y1,y2name,y2)
is translated by pyuic to
Python code :
def runningplot(self,a0,a1,a2,a3,a4,a5,a6,a7):
Now, while I understa
Phil Thompson wrote:
>> 2. In the same vein, how does one embed a runtime plot in a qt3 UI ? It
>> will
>> need to be a python solution since I am using python libraries to acquire
>> the data.
>
> Have a look at PyQwt which is a set of Python bindings for the Qt-based
> Qwt plotting library.
>
Hi
I managed to compile and install the FileChooser plugin (.so file)
in /usr/share/qt3/plugins/designer and use it in my form in Designer.
Then I tried to use pyuic which generated the .py code from the ui file. An
attempt to execute the python file quits with :
Traceback (most recent call last
Hi
I am trying to add a QwtPlot widget to Qt Designer. I have both PyQwt
and
libqwt installed.
I first tried to add a Custom Widget from /usr/include/qwt/qwt_plot.h as
QwtPlot. But I do not know what slot to add. If I add the widget so
created, and double click on it, I am asked
Hi
Two questions :
1. Is it possible to use an import command in a qt3 designer code ? (I know
that it is possible to write python inside the braces -- but is it possible
to use an import command for some rather large libraries I wrote that I
need to access ?).
2. In the same vein, how does one
Robert Kern wrote:
> Madhusudan Singh wrote:
>> Hi
>>
>> Is it possible to have something like :
>>
>> a,b,c,d=fn(that returns 10 return values) ?
>
> a,b,c,d = fn()[:4]
>
Thanks !
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Hi
Is it possible to have something like :
a,b,c,d=fn(that returns 10 return values) ?
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Hi
I am a newbie to python and am using it to interface some of my lab
equipment.
How does one get rid of spaces at both ends of a string ? A little like
the
trim() intrinsic in fortran 95.
One of my instruments is returning a string that has one or more blanks
in
it, a
[EMAIL PROTECTED] wrote:
> apt-get install python-pwm
> this will get you python mega widgets
> one of the dependencies that apt will take care of for you is the
> python2.whatever-tk.
> depending on which version of debian you are using.
> i run sarge with python 2.3
Thanks for the help.
I trie
Is there such a thing for python ? Like Qt Designer for instance ?
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Hi
I am still a rookie at python (can do some basic programming with the
language), and have been using python gpib and matplotlib to control my
instruments and do real time plots. Since I have more than one instrument
to control, I was thinking of writing a GUI using Tkinter (looked at Page,
but
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