Playing WAV file with Python
Hi All, How can I play WAV file in python without OS(like Linux/Windows/MAC) on a device ? On Google I found lot of different solution but related to OS's like winsound, ossaudiodev etc which are not useful. Thanks in advance. Regards, VGNU -- http://mail.python.org/mailman/listinfo/python-list
Re: Playing WAV file with Python
On Wed, Mar 2, 2011 at 1:17 PM, VGNU Linux wrote: > Hi All, > How can I play WAV file in python without OS(like Linux/Windows/MAC) on a > device ? > On Google I found lot of different solution but related to OS's like > winsound, ossaudiodev etc which are not useful. > Thanks in advance. > > Regards, > VGNU > Hi All, Can anyone please give me any idea on this ? Regards, VGNU -- http://mail.python.org/mailman/listinfo/python-list
Re: Playing WAV file with Python
Hi, On Thu, Mar 3, 2011 at 1:26 PM, Chris Rebert wrote: > On Tue, Mar 1, 2011 at 11:47 PM, VGNU Linux wrote: > > Hi All, > > How can I play WAV file in python without OS(like Linux/Windows/MAC) on a > > device ? > > On Google I found lot of different solution but related to OS's like > > winsound, ossaudiodev etc which are not useful. > > Do you mean you want your code to be cross-platform, or what? > "Without OS" is rather vague. What are you trying to accomplish? > I will be using WAVE on embedded devices, and the device will not have any OS's. So I am looking for modules which can play WAVE sound without underlying OS. > Regards, > Chris > -- > http://blog.rebertia.com Regards, VGNU -- http://mail.python.org/mailman/listinfo/python-list
Re: Playing WAV file with Python
On Thu, Mar 3, 2011 at 1:54 PM, Chris Rebert wrote: > On Thu, Mar 3, 2011 at 12:17 AM, VGNU Linux wrote: > > On Thu, Mar 3, 2011 at 1:26 PM, Chris Rebert wrote: > >> On Tue, Mar 1, 2011 at 11:47 PM, VGNU Linux > wrote: > >> > How can I play WAV file in python without OS(like Linux/Windows/MAC) > on > >> > a > >> > device ? > >> > On Google I found lot of different solution but related to OS's like > >> > winsound, ossaudiodev etc which are not useful. > >> > >> Do you mean you want your code to be cross-platform, or what? > >> "Without OS" is rather vague. What are you trying to accomplish? > > > > I will be using WAVE on embedded devices, and the device will not have > any > > OS's. So I am looking for modules which can play WAVE sound without > > underlying OS. > > What implementation of Python are you going to use? I don't personally > know of any that can run on the "bare metal" without an OS. > I am planning to use python-on-a-chip(PyMite) which can be run without an OS therefore I am looking for a module/library which can play sound files. > Cheers, > Chris > -- http://mail.python.org/mailman/listinfo/python-list
Do UART require data structure/format for serial communication?
Hi All, I have two chips one understands Python and the other embedded C.I have connected both chips using UART serial communication channel, however I have no idea how data communication must be achieved between this 2 chips. As for example send using C chip string "Hello Python" which python chip easily understands and replies back a string "Hi C". I am pretty new to embedded systems can anybody help me understand data communication using UART. Thank in advance. VGNU -- http://mail.python.org/mailman/listinfo/python-list
Re: Do UART require data structure/format for serial communication?
Actually I am trying to data communication between these 2 chips, but facing troubles in deciding a protocol to do the same. Do UART have any default protocols? For the moment I am trying to do it with Strings but not sure if that's the right solution. Regards, Vivek On Mon, Apr 11, 2011 at 11:43 PM, John Nagle wrote: > On 4/11/2011 4:57 AM, Jean-Michel Pichavant wrote: > > VGNU Linux wrote: >> >>> Hi All, >>> I have two chips one understands Python and the other embedded C.I >>> have connected both chips using UART serial communication channel, >>> however I have no idea how data communication must be achieved between >>> this 2 chips. As for example send using C chip string "Hello Python" >>> which python chip easily understands and replies back a string "Hi C". >>> I am pretty new to embedded systems can anybody help me understand >>> data communication using UART. >>> Thank in advance. >>> >> >What do you want to do? > >There are many serial protocols. At the low end, you can > send text. At the high end, you can send TCP over PPP. > The Arduno crowd has some protocols of their own. See > "http://www.arduino.cc/en/Reference/Libraries";. > >Any useful protocol must be able to deal with errors > on the link, either end restarting, and the other end failing > to respond. All those things happen frequently with serial > ports. > >What do you want to do? > >John Nagle > -- > http://mail.python.org/mailman/listinfo/python-list > -- http://mail.python.org/mailman/listinfo/python-list
How to select Python web frameworks and which one is the best framework ?
Hi all, I am confused on which web framework to select for developing a small data driven web application. Application will have features generally found in now-a-days web application like security, database connectivity, authentication etc. I found few web frameworks over the net like django, zope 2/3, pylons, turbogears, web2py, grok etc. etc. I just want to know that how developers/managers/organizations select a framework which best suits their needs ? what are the parameters for selection ? also which is the best and widely used web framework for python ? I apologize if this is a repeated question. Regards, VGNU -- http://mail.python.org/mailman/listinfo/python-list
Re: How to select Python web frameworks and which one is the best framework ?
On Tue, May 17, 2011 at 1:20 PM, VGNU Linux wrote: > Hi all, > > I am confused on which web framework to select for developing a small data > driven web application. Application will have features generally found in > now-a-days web application like security, database connectivity, > authentication etc. I found few web frameworks over the net like django, > zope 2/3, pylons, turbogears, web2py, grok etc. etc. > I just want to know that how developers/managers/organizations select a > framework which best suits their needs ? what are the parameters for > selection ? > also which is the best and widely used web framework for python ? > > I apologize if this is a repeated question. > > Regards, > VGNU > Please guys help as I am novice to web development. Regards, VGNU -- http://mail.python.org/mailman/listinfo/python-list
Python SUDS issue
Hi Guys, I am pretty new to web services. After some googling found that python suds is a suitable module to create web service client. I am trying to create a client but its giving me an error which is quite confusing for me. Here is my code: from suds.client import Client wsdlurl = 'https://46.51.221.138/PBExternalServices/v1/soap?wsdl' client = Client(wsdlurl) print client And following is the error that occurs on trying to print client. Traceback (most recent call last): File "trysuds.py", line 3, in client = Client(wsdlurl) File "C:\Python25\Lib\site-packages\suds\client.py", line 112, in __init__ self.wsdl = reader.open(url) File "C:\Python25\Lib\site-packages\suds\reader.py", line 152, in open d = self.fn(url, self.options) File "C:\Python25\Lib\site-packages\suds\wsdl.py", line 159, in __init__ self.build_schema() File "C:\Python25\Lib\site-packages\suds\wsdl.py", line 220, in build_schema self.schema = container.load(self.options) File "C:\Python25\Lib\site-packages\suds\xsd\schema.py", line 95, in load child.dereference() File "C:\Python25\Lib\site-packages\suds\xsd\schema.py", line 323, in dereference midx, deps = x.dependencies() File "C:\Python25\Lib\site-packages\suds\xsd\sxbasic.py", line 469, in dependencies raise TypeNotFound(self.ref) suds.TypeNotFound: Type not found: '(GetAccountBalanceFaultResponse, http://www.payback.net/lmsglobal/xsd/v1/types, )' Appreciate your help. Thanks in advance, VGNU -- http://mail.python.org/mailman/listinfo/python-list
Re: Python SUDS issue
Hi, Typing URL in the browser displays document tree as a web page. Is it right or there is something wrong with it ? Regards, VGNU On Mon, Mar 4, 2013 at 6:45 PM, Joel Goldstick wrote: > > > > On Mon, Mar 4, 2013 at 5:37 AM, VGNU Linux wrote: > >> Hi Guys, >> I am pretty new to web services. >> After some googling found that python suds is a suitable module to create >> web service client. I am trying to create a client but its giving me an >> error which is quite confusing for me. >> >> Here is my code: >> from suds.client import Client >> wsdlurl = 'https://46.51.221.138/PBExternalServices/v1/soap?wsdl' >> > > > What happens when you type this in your browser: > https://46.51.221.138/PBExternalServices/v1/soap?wsdl > > >> client = Client(wsdlurl) >> print client >> >> And following is the error that occurs on trying to print client. >> Traceback (most recent call last): >> File "trysuds.py", line 3, in >> client = Client(wsdlurl) >> File "C:\Python25\Lib\site-packages\suds\client.py", line 112, in >> __init__ >> self.wsdl = reader.open(url) >> File "C:\Python25\Lib\site-packages\suds\reader.py", line 152, in open >> d = self.fn(url, self.options) >> File "C:\Python25\Lib\site-packages\suds\wsdl.py", line 159, in __init__ >> self.build_schema() >> File "C:\Python25\Lib\site-packages\suds\wsdl.py", line 220, in >> build_schema >> self.schema = container.load(self.options) >> File "C:\Python25\Lib\site-packages\suds\xsd\schema.py", line 95, in >> load >> child.dereference() >> File "C:\Python25\Lib\site-packages\suds\xsd\schema.py", line 323, in >> dereference >> midx, deps = x.dependencies() >> File "C:\Python25\Lib\site-packages\suds\xsd\sxbasic.py", line 469, in >> dependencies >> raise TypeNotFound(self.ref) >> suds.TypeNotFound: Type not found: '(GetAccountBalanceFaultResponse, >> http://www.payback.net/lmsglobal/xsd/v1/types, )' >> >> Appreciate your help. >> Thanks in advance, >> VGNU >> >> -- >> http://mail.python.org/mailman/listinfo/python-list >> >> > > > -- > Joel Goldstick > http://joelgoldstick.com > -- http://mail.python.org/mailman/listinfo/python-list
Re: Python SUDS issue
Hi Guys,
Not aware what "import" here is and what it will do.
But going through some google search result page found that there is
something called doctor in suds.
so tried changing code and it did fix the issue.
suds.TypeNotFound: Type not found: '(GetAccountBalanceFaultResponse,
http://www.payback.net/lmsglobal/xsd/v1/types, )'
Here is what i changed.
from suds.client import Client
from suds.xsd.doctor import Import, ImportDoctor
from suds.sax.element import Element
wsdlurl = 'https://46.51.221.138/PBExternalServices/v1/soap?wsdl'
schemaurl = 'http://www.payback.net/lmsglobal/xsd/v1/types'
schemaimport = Import(schemaurl)
schemadoctor = ImportDoctor(schemaimport)
client = Client(url=wsdlurl,doctor=schemadoctor)
print client
Printing client now lists all the methods and types associated with the
service.
But again stuck as on executing a method
response = client.service.GetAccountBalance(authtype)
replies with the error.
ValueError: unknown url type: {endpoint address}
Totally confused as what is wrong going on here.
Appreciate your help.
Regards,
VGNU
On Tue, Mar 5, 2013 at 12:46 PM, dieter wrote:
> VGNU Linux writes:
>
> > ...
> > Here is my code:
> > from suds.client import Client
> > wsdlurl = 'https://46.51.221.138/PBExternalServices/v1/soap?wsdl'
> > client = Client(wsdlurl)
> > print client
> >
> > And following is the error that occurs on trying to print client.
> > Traceback (most recent call last):
> > ...
> > dereference
> > midx, deps = x.dependencies()
> > File "C:\Python25\Lib\site-packages\suds\xsd\sxbasic.py", line 469, in
> > dependencies
> > raise TypeNotFound(self.ref)
> > suds.TypeNotFound: Type not found: '(GetAccountBalanceFaultResponse,
> > http://www.payback.net/lmsglobal/xsd/v1/types, )'
>
> Looks like a bug in the "WSDL" description of the web service.
> It seems to reference a type "GetAccountBalanceFaultResponse"
> associated with the namespace "
> http://www.payback.net/lmsglobal/xsd/v1/types";,
> but "suds" cannot find the type.
>
> Maybe an "import" is missing in the "WSDL" description.
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
--
http://mail.python.org/mailman/listinfo/python-list
Re: Python SUDS issue
Able to fix issue by including 'location' as parameter in client
constructor arguments.
client = Client(url=wsdlurl,doctor=schemadoctor, location='
https://46.51.221.138/PBExternalServices/v1/soap?wsdl')
Thanks for helping me out.
Regards,
VGNU
On Thu, Mar 7, 2013 at 10:07 AM, VGNU Linux wrote:
> Hi Guys,
> Not aware what "import" here is and what it will do.
> But going through some google search result page found that there is
> something called doctor in suds.
> so tried changing code and it did fix the issue.
> suds.TypeNotFound: Type not found: '(GetAccountBalanceFaultResponse,
> http://www.payback.net/lmsglobal/xsd/v1/types, )'
>
> Here is what i changed.
> from suds.client import Client
> from suds.xsd.doctor import Import, ImportDoctor
> from suds.sax.element import Element
>
> wsdlurl = 'https://46.51.221.138/PBExternalServices/v1/soap?wsdl'
> schemaurl = 'http://www.payback.net/lmsglobal/xsd/v1/types'
> schemaimport = Import(schemaurl)
> schemadoctor = ImportDoctor(schemaimport)
> client = Client(url=wsdlurl,doctor=schemadoctor)
> print client
>
> Printing client now lists all the methods and types associated with the
> service.
> But again stuck as on executing a method
> response = client.service.GetAccountBalance(authtype)
> replies with the error.
> ValueError: unknown url type: {endpoint address}
>
> Totally confused as what is wrong going on here.
>
> Appreciate your help.
> Regards,
> VGNU
>
>
> On Tue, Mar 5, 2013 at 12:46 PM, dieter wrote:
>
>> VGNU Linux writes:
>>
>> > ...
>> > Here is my code:
>> > from suds.client import Client
>> > wsdlurl = 'https://46.51.221.138/PBExternalServices/v1/soap?wsdl'
>> > client = Client(wsdlurl)
>> > print client
>> >
>> > And following is the error that occurs on trying to print client.
>> > Traceback (most recent call last):
>> > ...
>> > dereference
>> > midx, deps = x.dependencies()
>> > File "C:\Python25\Lib\site-packages\suds\xsd\sxbasic.py", line 469, in
>> > dependencies
>> > raise TypeNotFound(self.ref)
>> > suds.TypeNotFound: Type not found: '(GetAccountBalanceFaultResponse,
>> > http://www.payback.net/lmsglobal/xsd/v1/types, )'
>>
>> Looks like a bug in the "WSDL" description of the web service.
>> It seems to reference a type "GetAccountBalanceFaultResponse"
>> associated with the namespace "
>> http://www.payback.net/lmsglobal/xsd/v1/types";,
>> but "suds" cannot find the type.
>>
>> Maybe an "import" is missing in the "WSDL" description.
>>
>> --
>> http://mail.python.org/mailman/listinfo/python-list
>>
>
>
--
http://mail.python.org/mailman/listinfo/python-list
Python for embedded systems development
Hi, Is there anyone using python for embedded systems development ? I have no idea where to start with. Google was of little help. Will appreciate if someone could guide me on "from where to start". Regards Vgnu -- http://mail.python.org/mailman/listinfo/python-list
Embedded Systems development using Python
Hi List, Can Python be used for embedded systems development ? If Yes can anyone point me to a tutorial/reference website which explains about this. Thanks and Regards Vgnu -- http://mail.python.org/mailman/listinfo/python-list
Re: Embedded Systems development using Python
Hi, A small device like a mobile but with only 2 major buttons, with GPS and GPRS capabilities. Can anyone tell me from where to start learning about this ? Regards Vivek On Mon, Sep 6, 2010 at 4:52 PM, Stefan Behnel wrote: > VGNU Linux, 06.09.2010 13:02: > > Can Python be used for embedded systems development ? >> > > It can and has been. > > What kind of embedded system with what set of capabilities are you thinking > about? TV sets? Mobile phones? Smart dust? > > Stefan > > -- > http://mail.python.org/mailman/listinfo/python-list > -- http://mail.python.org/mailman/listinfo/python-list
Re: Embedded Systems development using Python
Hi All, Appreciate your response. Now I am going to use Telit Module GE865-QUAD with support for GPS and GPRS capabilities. It also has built-in python interpreter for developing application for the module. But still I have no idea which microprocessor/microcontroller to use. Can anyone help me out here ? Is there any microprocessor/microcontroller which I could use with Python and Telit module? Any help here will be appreciated. Regards, VGNU On Mon, Sep 6, 2010 at 8:54 PM, Grant Edwards wrote: > On 2010-09-06, Stefan Behnel wrote: > > VGNU Linux, 06.09.2010 13:02: > >> Can Python be used for embedded systems development ? > > > > It can and has been. > > > > What kind of embedded system with what set of capabilities are you > thinking > > about? TV sets? Mobile phones? Smart dust? > > [The OP never showed up on my sever for some reason] > > If you google for "deeply embedded python", you'll find some raterh > old links: > > http://tucs.fi/magazin/output.php?ID=2000.N2.LilDeEmPy > > http://groups.google.com/group/python-on-a-chip/web/list-of-small-python-implementations > > http://mail.python.org/pipermail/python-announce-list/1999-August/000157.html > > A few years ago I used Python on a prototype for a bicycle computer > with GPS, four buttons, and a small LCD screen. It was more or less > comparable to a PDA with Linux running on an 200MHz XScale with > something like 16MB of flash and 32MB of SDRAM. > > IIRC, that project used OpenEmbedded, and all I had to do was build > the Python package that's already there in OE. I don't remember if I > was using PySDL or PyQt for the UI -- I remember experimenting with > both on desktop hosts at the time. > > I don't think that product ever saw daylight. There was just now way > they could have competed with Garmin. > > -- > Grant > > -- > http://mail.python.org/mailman/listinfo/python-list > -- http://mail.python.org/mailman/listinfo/python-list
How to highlight Label/Text in tkinter ?
Hi,
I am writing a program teach myself python and tkinter.
Below given is a program which displays label with different fonts and
sizes.
How to highlight text and change font size if the up/down arrow keys are
pressed ?
from Tkinter import *
import tkFont
class MyFrame(Frame):
def __init__(self, root):
Frame.__init__(self, root)
self.txt = Label(self, text="Arial 10 bold",
font=("Arial",10,"bold"))
self.txt.grid(row=1,column=1)
self.txt = Label(self, text="Courier 12 bold",
font=("Courier",12,"bold"))
self.txt.grid(row=2,column=1)
self.txt = Label(self, text="Comic Sans MS 14 bold", font=("Comic
Sans MS",14,"bold"))
self.txt.grid(row=3,column=1)
self.txt = Label(self, text="Fixedsys 16 bold",
font=("Fixedsys",16,"bold"))
self.txt.grid(row=4,column=1)
self.txt = Label(self, text="MS Sans Serif 18 bold", font=("MS Sans
Serif",18,"bold"))
self.txt.grid(row=5,column=1)
self.txt = Label(self, text="MS Serif, Symbol 20 bold", font=("MS
Serif, Symbol",20,"bold"))
self.txt.grid(row=6,column=1)
self.txt = Label(self, text="System 22 bold",
font=("System",22,"bold"))
self.txt.grid(row=7,column=1)
self.txt = Label(self, text="Verdana 24 bold",
font=("Verdana",24,"bold"))
self.txt.grid(row=8,column=1)
if __name__ == '__main__':
root = Tk()
c = MyFrame(root)
c.pack(fill=BOTH, expand=1)
root.mainloop()
any help?
Regards,
VGNU
--
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Re: How to highlight Label/Text in tkinter ?
I was able to solve the problem. But unable to use Label or Text widget. Any
idea as to why focus does not work with Label or Text widget.
Here is the program using button widget.
from Tkinter import *
import tkFont
class DisplayFrame:
"""
Uses GUI to display contacts
"""
def __init__(self, root):
self.b = Button(root, text="Peter Pan",font=("Arial",10,"bold"),
anchor=W, justify=LEFT, relief=FLAT)
self.b.pack(fill=BOTH)
self.b.focus_set()
self.b = Button(root, text="Marry Joe", font=("Arial",10,"bold"),
anchor=W, justify=LEFT, relief=FLAT)
self.b.pack(fill=BOTH)
self.b = Button(root, text="Michael Kin", font=("Arial",10,"bold"),
anchor=W, justify=LEFT, relief=FLAT)
self.b.pack(fill=BOTH)
self.b = Button(root, text="Jennifer McConelly",
font=("Arial",10,"bold"),
anchor=W, justify=LEFT, relief=FLAT)
self.b.pack(fill=BOTH)
self.b = Button(root, text="Jonathen Broady",
font=("Arial",10,"bold"),
anchor=W, justify=LEFT, relief=FLAT)
self.b.pack(fill=BOTH)
def handleReturn(event):
event.widget["font"] = "Arial 16 bold"
print event.widget.focus_get()
nxtwid = event.widget.tk_focusNext()
prewid = event.widget.tk_focusPrev()
prewid["font"] = "Arial 10 bold"
nxtwid.focus_set()
if __name__ == '__main__':
root = Tk()
frame = DisplayFrame(root)
root.bind("",handleReturn)
root.mainloop()
Regards,
VGNU
On Wed, Nov 3, 2010 at 12:02 PM, VGNU Linux wrote:
> Hi,
> I am writing a program teach myself python and tkinter.
> Below given is a program which displays label with different fonts and
> sizes.
> How to highlight text and change font size if the up/down arrow keys are
> pressed ?
> from Tkinter import *
> import tkFont
>
> class MyFrame(Frame):
>
> def __init__(self, root):
> Frame.__init__(self, root)
> self.txt = Label(self, text="Arial 10 bold",
> font=("Arial",10,"bold"))
> self.txt.grid(row=1,column=1)
> self.txt = Label(self, text="Courier 12 bold",
> font=("Courier",12,"bold"))
> self.txt.grid(row=2,column=1)
> self.txt = Label(self, text="Comic Sans MS 14 bold", font=("Comic
> Sans MS",14,"bold"))
> self.txt.grid(row=3,column=1)
> self.txt = Label(self, text="Fixedsys 16 bold",
> font=("Fixedsys",16,"bold"))
> self.txt.grid(row=4,column=1)
> self.txt = Label(self, text="MS Sans Serif 18 bold", font=("MS Sans
> Serif",18,"bold"))
> self.txt.grid(row=5,column=1)
> self.txt = Label(self, text="MS Serif, Symbol 20 bold", font=("MS
> Serif, Symbol",20,"bold"))
> self.txt.grid(row=6,column=1)
> self.txt = Label(self, text="System 22 bold",
> font=("System",22,"bold"))
> self.txt.grid(row=7,column=1)
> self.txt = Label(self, text="Verdana 24 bold",
> font=("Verdana",24,"bold"))
> self.txt.grid(row=8,column=1)
>
> if __name__ == '__main__':
> root = Tk()
> c = MyFrame(root)
> c.pack(fill=BOTH, expand=1)
> root.mainloop()
>
> any help?
>
> Regards,
> VGNU
>
--
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