i see. sounds like a better plan :)
haha i think this little raspberry pi is quite amazing! :D i have never
encounter linux or other programming language (other than c++) till i met
R-pi. and i start  to enjoy learning them :)))
thanks again!!


On Tue, Apr 2, 2013 at 3:37 PM, Niphlod <[email protected]> wrote:

> yep, it should be less of a "memory hog" hungry on system resources.
> BTW, I have a raspberry too, but I never manage to find time to play with
> it.
>
>
> On Tuesday, April 2, 2013 2:22:00 AM UTC+2, The Organisation of Secret
> Shoppers wrote:
>
>> by that, do you mean to start the webserver by typing python web2py.py in
>> the terminal?
>>
>> thanks a lot! :D
>>
>>
>> On Mon, Apr 1, 2013 at 6:48 PM, Niphlod <[email protected]> wrote:
>>
>>> clearly it was due to a permission problem.... btw, if you don't need
>>> apache for anything else, given that the raspberry has "limited" resources
>>> it would be better to stick with web2py's "embedded" webserver rather than
>>> having it mounted on apache.
>>>
>>>
>>> On Monday, April 1, 2013 10:56:03 AM UTC+2, The Organisation of Secret
>>> Shoppers wrote:
>>>
>>>> my web2py is forever "on". when i switch on my Raspberry-Pi, the web2py
>>>> server is alive and i can access the webpage from another comp in the same
>>>> network.
>>>> Btw, thank you so much for your patience and help. :) It seems to work
>>>> suddenly which i still could not figure out why! :/
>>>> just that i'm still stuck at mapping URL, writing arguments and things
>>>> like that. Is there any site with good complete examples? i couldn't digest
>>>> the web2py manual without matching examples :(
>>>>
>>>>
>>>> On Mon, Apr 1, 2013 at 4:28 PM, Niphlod <[email protected]> wrote:
>>>>
>>>>> you need to take into consideration what changes between the web2py
>>>>> environment and the cherrypy one.
>>>>> assuming that you start cherrypy with something like this in a
>>>>> mywebserver.py
>>>>>
>>>>> import cherrypyclass HelloWorld(object):
>>>>>     def index(self):
>>>>>         return "Hello World!"
>>>>>     index.exposed = True
>>>>>
>>>>> cherrypy.quickstart(HelloWorld****())
>>>>>
>>>>>
>>>>> and do python mywebserver.py to start it, a very few things change
>>>>> between that process and the one you get doing
>>>>> web2py.py -a yourpassword
>>>>>
>>>>> with your app.
>>>>> are you starting web2py this way or is it "mounted" under apache ?
>>>>>
>>>>>
>>>>> On Monday, April 1, 2013 5:08:42 AM UTC+2, The Organisation of Secret
>>>>> Shoppers wrote:
>>>>>
>>>>>> I see... but how should i close the serial port opened by another
>>>>>> application? does shutting down the whole system close it? initially, i
>>>>>> created a normal python script just to communicate with the device 
>>>>>> through
>>>>>> the serial port. it succeeded. so i moved on to web2py but perhaps i 
>>>>>> missed
>>>>>> out something or use the wrong coding which led me to that error. i'm not
>>>>>> really sure where should i put things but i created a new def "test"
>>>>>> function and a default/test.html...
>>>>>>
>>>>>> attached is the w2p packed file.
>>>>>>
>>>>>> without doing anything to the python script, i installed cherrypy and
>>>>>> wrote a simple web app to test the communication and it worked. so i 
>>>>>> doubt
>>>>>> may be there is something wrong in my coding somewhere. :( i have added 
>>>>>> the
>>>>>> user to the dialout group too.
>>>>>>
>>>>>> sudo usermod -a -G dialout pi
>>>>>> sudo usermod -a -G dialout www-data
>>>>>>
>>>>>> the result is still the same...
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Sat, Mar 30, 2013 at 6:52 AM, Rufus <[email protected]> wrote:
>>>>>>
>>>>>>> Perhaps it is already open by another process?
>>>>>>>
>>>>>>> I'm not a major linux user (yet) but in windows only one process can
>>>>>>> open the serial port at a time.  Perhaps
>>>>>>> "Permission denied" is the same as "In use".
>>>>>>>
>>>>>>> Also make sure you close it when, if your application doesn't
>>>>>>> terminate, as web2py doesn't, depending where
>>>>>>> and how you opened it.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Thursday, March 28, 2013 4:54:29 AM UTC-4, [email protected]:
>>>>>>>
>>>>>>>> Hello everyone.
>>>>>>>> I would like to use web2py as my Raspberry Pi webserver. i need to
>>>>>>>> send some serial data from the web application to Raspberry Pi and 
>>>>>>>> send to
>>>>>>>> a device. However, i encountered the error of " <class 
>>>>>>>> ‘serial.serialutil.
>>>>>>>> **SerialExcep******tion’> could not open port /dev/ttyAMA0: [Errno
>>>>>>>> 13] Permission denied: ‘/dev/ttyAMA0′ "
>>>>>>>>
>>>>>>>> I have been stuck at this for weeks and i can't seem to find any
>>>>>>>> solution except moving on to using cherrypy and jquery. :( but i really
>>>>>>>> wish to use web2py!
>>>>>>>>
>>>>>>>> So, i have this code below that could work fine using normal python
>>>>>>>> script as well as cherrypy. in web2py, i put this under "default.py" 
>>>>>>>> and
>>>>>>>> create a new def for it.
>>>>>>>>
>>>>>>>> import serial
>>>>>>>> import time
>>>>>>>>
>>>>>>>> serialport= serial.Serial ("/dev/ttyAMA0", 9600, timeout=0.5)
>>>>>>>> serialport.write("\x03LI1234\**x******0D")
>>>>>>>> response=serialport.readlines(********1)
>>>>>>>> print response
>>>>>>>> time.sleep(1)
>>>>>>>>
>>>>>>>> what could have been done wrongly? :(
>>>>>>>>
>>>>>>>> Read more details here: http://yvonnezoe.wordpress.**com******
>>>>>>>> /2013/03/14/web2py-web-app-**pro******gress/
>>>>>>>>
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