gsm_location() None Issue

[whoisstan]

Hey,

I've seen the issue of gsm_location() return None before in the forum. I used it frequently before on my n90 a year ago but now on n95 it is not working anymore. Is there a certain python & shell combination I need to install? I just want to run a very simple .py file and try things out. Do I really need to go through a certification process when I am just trying things out for a proof of concept?

Appreciate it,
Stan Wiechers

[croozeus]

Hey,

I've seen the issue of gsm_location() return None before in the forum. I used it frequently before on my n90 a year ago but now on n95 it is not working anymore. Is there a certain python & shell combination I need to install? I just want to run a very simple .py file and try things out. Do I really need to go through a certification process when I am just trying things out for a proof of concept?

Appreciate it,
Stan Wiechers

Hello whoisstan and welcome to the Dibo

Just to try and run a .py file on you device you donot need to go through any kind of certification process.
Are you using the latest verision(1.4.0) of pys60 on your device (N95)?
Just try the following code and paste the output in this thread...

import location


mcc, mnc, lac, cellid = location.gsm_location()
print cellid

[aaaaapo]

Just to try and run a .py file on you device you donot need to go through any kind of certification process.

croozeus, you're wrong again.

Are you using the latest verision(1.4.0) of pys60 on your device (N95)?

N95 is 3rd edition device and Pys60 script shell must be signed with devcert properly to get location.gsm_location() return something more than None.

[croozeus]

Oops..Sorry
So there you go whoisstan.
Your Pys60 script shell must be signed with devcert before u can exploit the location.gsm_location() properly....
Thank you for correcting me aaaaapo.

[whoisstan]

I am not releasing anything to greater public, just doing some work for myself and I have sign my prototypes all the time? That doesn't make any sense to me at all. I understand the need for signing when publishing software, but please not for development. Is there a way to accomplish that without signing? Can I use an old release of python? Any help is appreciated!

[cyke64]

I am not releasing anything to greater public, just doing some work for myself and I have sign my prototypes all the time? That doesn't make any sense to me at all. I understand the need for signing when publishing software, but please not for development. Is there a way to accomplish that without signing? Can I use an old release of python? Any help is appreciated!

On 3rd platform you MUST at least have the python shell or your application signed with your own dev cert to use gsm_location() function !
gsm_location need caps Location and self-signed cert has not this capability !
This doesn't depend on Python but 3rd platform (security and data cage )!
So old release of Python will not resolve your problem
With 2nd platform and Python there's no problem at all !


Cyke64

[whoisstan]

do i understand right that i can sign the python shell i am using? How can I do that? I develop on OS X. I found that here:

http://www.martin.st/symbian/

Once I installed everything, can I just create my own key like described here or do I need an official key?

"On 3rd edition, all sis files must be signed before they can be installed. If you haven't already got a key and certificate pair, generate them:

makekeys -cert -expdays 3650 -password mykey.key mycert.cer

This will prompt for information to enter into the certificate, and create a certificate valid for 10 years. (To create a certificate without a password, just leave out -password. The makekeys tool included in this package has a similar but not identical syntax compared to the makekeys tool in the real SDKs.) Then sign the sis file using this certificate:

signsis helloworldbasic.sis helloworldbasic.sisx mycert.cer mykey.key"

[aaaaapo]

do i understand right that i can sign the python shell i am using? How can I do that? I develop on OS X.

On OsX you can use ensymble as I do.

Signing the PythonScriptShell:

/opt/local/bin/python ./bin/ensymble_python2.4-0.23.py signsis \
--execaps=LocalServices+Location+NetworkServices+PowerMgmt+ProtServ+ReadUserData+SurroundingsDD+SWEvent+UserEnvironment+WriteUserData+ReadDeviceData+TrustedUI+WriteDeviceData \
--cert=your-cert.cer \
--privkey=your-cert.key \
--passphrase=XXXXXXXXXX \
PythonScriptShell_1_4_0_3rdEd_unsigned_freedevcert.SIS \
PythonScriptShell_1_4_0_3rdEd_signed-for-your-phone.sis

See this post to find out how to make a signed SIS-package:
http://discussion.forum.nokia.com/fo...85&postcount=2

Once I installed everything, can I just create my own key like described here or do I need an official key?

Obtain your own devcert with cyke64's "Sign yourself An 3rd app" tutorial:
http://cyke64.googlepages.com/signyour3rdapp%21

[whoisstan]

thanks for the help. I did exactly as described. Got my own certificate for development, signed an unsigned shell and uploaded it. When installing it warned me that the application is for development only and so on. When I run the shell and either type in the statements to get the location or run a script that does the same I get 'None' again. No difference whatsoever.

Those are the capabilites of my cert:
LocalServices
Location
NetworkServices
PowerMgmt
ProtServ
ReadDeviceData
ReadUserData
SurroundingsDD
SwEvent
TrustedUI
UserEnvironment
WriteDeviceData
WriteUserData

And the IMEI given is correct as well.

Does anybody know what the problem is? I use a N95.

Thank you,
Stan

[whoisstan]

Is there a way that I can see what the permissions associated with the certificate are? I really would like to get that to work, shouldn't be so difficult, i literally just print the gsm_location.

import location
print location.gsm_location()

I also did try to py2with certificate, didn't work either, here is the code, when i add the gsm_location call the app quits.

Appreciate any help

import appuifw
import e32
import location

def exit_key_handler():
app_lock.signal()

round = appuifw.Text()
round.set(u'hello')

mcc, mnc, lac, cellid = location.gsm_location()

appuifw.app.screen='normal' #(a full screen)

app_lock = e32.Ao_lock()

appuifw.app.body = round

appuifw.app.exit_key_handler = exit_key_handler
app_lock.wait()

[cyke64]

hello Stan ,

Try the extended gsm location of Berger !

I hope that this time it works !

import elocation

print elocation.gsm_location() // Hey ! I've already seen this function somewhere    
;)

print elocation.extended_gsm_location() // NEW

Cyke64

[whoisstan]

Thank you will try that asap. Since i am still so new to python and symbian, how do I include that in my app?

Can I just sign the elocation and deploy it as a library and simply include it my signed app or use it in the signed shell?

Or do i have bundle them with my app or the shell?

Thanks so much so far, feel like it is finally getting somewhere.

Appreciate all your help to a newbie,
Stan Wiechers

[cyke64]

Thank you will try that asap. Since i am still so new to python and symbian, how do I include that in my app?

Can I just sign the elocation and deploy it as a library and simply include it my signed app or use it in the signed shell?

Or do i have bundle them with my app or the shell?

Thanks so much so far, feel like it is finally getting somewhere.

Appreciate all your help to a newbie,
Stan Wiechers

Hello Stan

You have to sign the elocation module as you have signed the shell before with your dev cert. You install the signed module and after you can use elocation functions in your signed app or in the signed shell.

Cyke64

[whoisstan]

Hey!

So i deployed the signed elocation and the shell on my n95 and when i run

>>> import elocation
>>> elocation.extended_gsm_location()

i get

{}

can somebody verify that on a N95 please? maybe i am doing something wrong. would be great to get that to work!

best,
stan

[whoisstan]

here are my statements to sign. are they correct?

python ~/bin/ensymble.py signsis --execaps=LocalServices+NetworkServices+ReadUserData+UserEnvironment+WriteUserData --cert=stan.cer --privkey=stan.key --passphrase=xxxxx elocation-PyS60_1_4_0_3rdEd_unsigned.SIS elocation-PyS60_1_4_0_3rdEd_signed.SIS

python ~/bin/ensymble.py signsis --execaps=LocalServices+NetworkServices+ReadUserData+UserEnvironment+WriteUserData --cert=stan.cer --privkey=stan.key --passphrase=xxxx PythonScriptShell_1_4_0_3rdEd_unsigned_freedevcert.SIS PythonScriptShell_1_4_0_3rdEd_signed_freedevcert.SIS