Kivy - From Ubuntu to Android

[Giovanni Bucci]

Hi All,

I need to execute a Python app in Android 5.1.1 with a GUI interface via kivy.

In my app I need to include the "watson_developer_cloud" module but I have some problem.

Inserisci qui il codice...

In my source code (file main.py) I have included:

from kivy.app import App

from kivy.uix.label import Label

from kivy.uix.gridlayout import GridLayout

from kivy.uix.textinput import TextInput

from kivy.uix.button import Button

1) First scenario

I have installe QPython and QPyton3 and I can run my app with kivy but without the watson module.

In QPython I have printed the local execution directory and the Python version and I have this information:

- path: /storage/emulated/0/qpython/projects3/kivy_prj 

- version: 2.7.12

If I add

import watson_developer_cloud

I receive this error message in the log "last.log" 

import watson_developer_cloud

ImportError: No module named watson_developer_cloud

I have tried to install this module in QPython to complete the develop of the app but without success.

2) Second scenario

In Android 5.1.1 with Termux I have istalled Python v.2 and 3 and also the watson module for both Python versions. 

When I open the Termux, the local path is /data/data/com.termux/files/home

under the path /data/data/com.termux/files/usr I see:

./usr/lib/python3.6/site-packages/watson_developer_cloud

./usr/lib/python3.6/site-packages/watson_developer_cloud/watson_service.py

./usr/lib/python3.6/site-packages/watson_developer_cloud/__pycache__/watson_service.cpython-36.pyc

./usr/lib/python3.6/site-packages/watson_developer_cloud/watson_developer_cloud-1.2.0-py3.6.egg-info

When I execute the command

$ python2 main.py

I receive this error message

File "main.py", line 5, in <module>

   from kivy.app import App

ImportError: No module named kivy.app

or

$ python3 main.py

I receive this error message

File "main.py", line 5, in <module>

   from kivy.app import App

ModuleNoFoundError: No module named 'kivy'

 

I have tried to install viky module in Termux but without success. At the end, my idea is to launch a shell with the Python command python <app_name>.py by pressing an incon on the homescreen of Android, if this is possible and if this is the best way to execute an app. 

3) Third scenario

In Ubuntu 17.10 I have installed Python v.3.6.3, kivy and the watson module. The app work correcly by executing this command

$ python3 main.py

At this point to have the possibility to execute my app in Android environment I have found the use of buildozer that I suppose should resolve my problem including the watson module.

At this link the command to install buildozer doesn't include the Ubuntu version 17.10.

http://buildozer.readthedocs.io/en/latest/installation.html

Any suggestion will be greatly appreciated. Thanks in advance for your kind support.

Regards,

   Giovanni