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 <niph...@gmail.com> 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 <nip...@gmail.com> 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 <rufus...@gmail.com> 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, theoffi...@gmail.comwrote:
>>>>>
>>>>>> 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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