[Galaxy Note II, Galaxy S III Developer Discussion ] Edge-Case:
I have python working on ADB from the command line, I wasn't happy about having to develop with that little virtual keyboard so I made some changes and wrote a short shell script to launch python after setting up some variables.

What I did exactly:

1) I created a blank.img file on my pc and formated it to ext2 as if I was making a chroot image for ubuntu but instead I left it blank. I then named it apps.img but that doesn't matter.

2) I pushed it to my phone ( 4 gigs just for fun)

3) I mounted it via Terminal Emulator on my phone, had to use bash to get the syntax I used on the pc to work with "mount -o loop " . created a folder in /mnt called "myside" so "/mnt/myside" and mounted into "/mnt/myside"

4) I copied all the files, libs, execs, etc into/onto the img file

5) I put my script in "/system/bin" , named it "python" and made it executable, so "/system/bin/python"

6) I tested via "adb shell"

edge-case@edge-case:~$ adb shell
shell@android:/ $ su
shell@android:/ # python
Python 2.7.2 (default, Jun 3 2013, 20:01:13)
[GCC 4.4.3] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> import os
>>> import math
>>> import io
ANDROID_PRIVATE = /mnt/myside/com.hipipal.qpyplus0/files
>>> import android
>>> import twisted
>>> import PIL
>>> print(os.environ)
{'EXTERNAL_STORAGE': '/storage/emulated/legacy', 'LOOP_MOUNTPOINT': '/mnt/obb', 'BOOTCLASSPATH': '/system/framework/core.jar:/system/framework/core-junit.jar:/system/framework/bouncycastle.jar:/system/framework/ext.jar:/system/framework/framework.jar:/system/framework/telephony-common.jar:/system/framework/mms-common.jar:/system/framework/android.policy.jar:/system/framework/services.jar:/system/framework/apache-xml.jar', 'ANDROID_PROPERTY_WORKSPACE': '8,49152', 'USER': 'shell', 'PATH': '/mnt/myside/com.hipipal.qpyplus0/files/bin:/mnt/myside/com.hipipal.qpyplus2/scripts/sbin:/vendor/bin:/system/sbin:/system/bin:/system/xbin', 'HOME': '/', 'ANDROID_STORAGE': '/storage', 'LD_LIBRARY_PATH': '/mnt/myside/com.hipipal.qpyplus2/lib:/vendor/lib:/system/lib', 'EMULATED_STORAGE_TARGET': '/storage/emulated', 'SHELL': '/system/bin/sh', 'ANDROID_ASSETS': '/system/app', 'ANDROID_BOOTLOGO': '1', '_': '/mnt/myside/com.hipipal.qpyplus0/files/bin/python', 'TERMINFO': '/system/etc/terminfo', 'MKSH': '/system/bin/sh', 'PYTHONOPTIMIZE': '2', 'ANDROID_PRIVATE': '/mnt/myside/com.hipipal.qpyplus0/files', 'ANDROID_SOCKET_adbd': '9', 'SECONDARY_STORAGE': '/storage/sdcard1', 'PYTHONPATH': '/mnt/myside/com.hipipal.qpyplus2/lib/site-packages:/mnt/myside/com.hipipal.qpyplus0/files/lib/site-packages:/mnt/myside/com.hipipal.qpyplus0/files/lib/lib-dynload:/mnt/myside/com.hipipal.qpyplus0/files/lib/config:/mnt/myside/com.hipipal.qpyplus0/files/lib/python27:/mnt/myside/com.hipipal.qpyplus0/files/lib/QPython', 'RANDOM': '29772', 'ANDROID_DATA': '/data', 'TERM': 'linux', 'EMULATED_STORAGE_SOURCE': '/mnt/shell/emulated', 'TMPDIR': '/mnt/myside/com.hipipal.qpyplus2/cache', 'HOSTNAME': 'android', 'ANDROID_ROOT': '/system', 'PYTHONHOME': '/mnt/myside/com.hipipal.qpyplus0/files:/mnt/myside/com.hipipal.qpyplus0/files/bin/python', 'ASEC_MOUNTPOINT': '/mnt/asec', 'ANDROID_CACHE': '/cache'}
>>> dir(PIL)
['__builtins__', '__doc__', '__file__', '__name__', '__package__', '__path__']
>>> dir(twisted)
['__builtins__', '__doc__', '__file__', '__name__', '__package__', '__path__', '__version__', '_version', 'python', 'version']
>>> from PIL import image
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: cannot import name image
>>> dir(android)
['AndroidBrowser', 'AndroidService', 'BuildInfo', 'KEYCODE_0', 'KEYCODE_1', 'KEYCODE_2', 'KEYCODE_3', 'KEYCODE_4', 'KEYCODE_5', 'KEYCODE_6', 'KEYCODE_7', 'KEYCODE_8', 'KEYCODE_9', 'KEYCODE_A', 'KEYCODE_ALT_LEFT', 'KEYCODE_ALT_RIGHT', 'KEYCODE_APOSTROPHE', 'KEYCODE_AT', 'KEYCODE_B', 'KEYCODE_BACK', 'KEYCODE_BACKSLASH', 'KEYCODE_C', 'KEYCODE_CALL', 'KEYCODE_CAMERA', 'KEYCODE_CLEAR', 'KEYCODE_COMMA', 'KEYCODE_D', 'KEYCODE_DEL', 'KEYCODE_DPAD_CENTER', 'KEYCODE_DPAD_DOWN', 'KEYCODE_DPAD_LEFT', 'KEYCODE_DPAD_RIGHT', 'KEYCODE_DPAD_UP', 'KEYCODE_E', 'KEYCODE_ENDCALL', 'KEYCODE_ENTER', 'KEYCODE_ENVELOPE', 'KEYCODE_EQUALS', 'KEYCODE_EXPLORER', 'KEYCODE_F', 'KEYCODE_FOCUS', 'KEYCODE_G', 'KEYCODE_GRAVE', 'KEYCODE_H', 'KEYCODE_HEADSETHOOK', 'KEYCODE_HOME', 'KEYCODE_I', 'KEYCODE_J', 'KEYCODE_K', 'KEYCODE_L', 'KEYCODE_LEFT_BRACKET', 'KEYCODE_M', 'KEYCODE_MEDIA_FAST_FORWARD', 'KEYCODE_MEDIA_NEXT', 'KEYCODE_MEDIA_PLAY_PAUSE', 'KEYCODE_MEDIA_PREVIOUS', 'KEYCODE_MEDIA_REWIND', 'KEYCODE_MEDIA_STOP', 'KEYCODE_MENU', 'KEYCODE_MINUS', 'KEYCODE_MUTE', 'KEYCODE_N', 'KEYCODE_NOTIFICATION', 'KEYCODE_NUM', 'KEYCODE_O', 'KEYCODE_P', 'KEYCODE_PERIOD', 'KEYCODE_PLUS', 'KEYCODE_POUND', 'KEYCODE_POWER', 'KEYCODE_Q', 'KEYCODE_R', 'KEYCODE_RIGHT_BRACKET', 'KEYCODE_S', 'KEYCODE_SEARCH', 'KEYCODE_SEMICOLON', 'KEYCODE_SHIFT_LEFT', 'KEYCODE_SHIFT_RIGHT', 'KEYCODE_SLASH', 'KEYCODE_SOFT_LEFT', 'KEYCODE_SOFT_RIGHT', 'KEYCODE_SPACE', 'KEYCODE_STAR', 'KEYCODE_SYM', 'KEYCODE_T', 'KEYCODE_TAB', 'KEYCODE_U', 'KEYCODE_UNKNOWN', 'KEYCODE_V', 'KEYCODE_VOLUME_DOWN', 'KEYCODE_VOLUME_UP', 'KEYCODE_W', 'KEYCODE_X', 'KEYCODE_Y', 'KEYCODE_Z', '__builtins__', '__doc__', '__file__', '__name__', '__package__', '__test__', 'accelerometer_enable', 'accelerometer_enabled', 'accelerometer_reading', 'ack_stop', 'action_send', 'check_pause', 'check_stop', 'get_buildinfo', 'get_dpi', 'hide_keyboard', 'init', 'map_key', 'open_url', 'show_keyboard', 'start_service', 'stop_service', 'vibrate', 'wait_for_resume', 'webbrowser', 'wifi_scan', 'wifi_scanner_enable']
>>> help(twisted)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'help' is not defined
>>> help(os)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'help' is not defined
>>>
shell@android:/ # set
ANDROID_ASSETS=/system/app
ANDROID_BOOTLOGO=1
ANDROID_CACHE=/cache
ANDROID_DATA=/data
ANDROID_PROPERTY_WORKSPACE=8,49152
ANDROID_ROOT=/system
ANDROID_SOCKET_adbd=9
ANDROID_STORAGE=/storage
ASEC_MOUNTPOINT=/mnt/asec
BOOTCLASSPATH=/system/framework/core.jar:/system/framework/core-junit.jar:/system/framework/bouncycastle.jar:/system/framework/ext.jar:/system/framework/framework.jar:/system/framework/telephony-common.jar:/system/framework/mms-common.jar:/system/framework/android.policy.jar:/system/framework/services.jar:/system/framework/apache-xml.jar
COLUMNS=80
EMULATED_STORAGE_SOURCE=/mnt/shell/emulated
EMULATED_STORAGE_TARGET=/storage/emulated
EXTERNAL_STORAGE=/storage/emulated/legacy
HOME=/
HOSTNAME=android
IFS='
'
KSHEGID=0
KSHGID=0
KSHUID=0
KSH_VERSION='@(#)MIRBSD KSH R40 2011/10/07'
LD_LIBRARY_PATH=/vendor/lib:/system/lib
LINES=24
LOOP_MOUNTPOINT=/mnt/obb
MKSH=/system/bin/sh
OPTIND=1
PATH=/sbin:/vendor/bin:/system/sbin:/system/bin:/system/xbin
PGRP=4849
PIPESTATUS[0]=0
PPID=4844
PS1='$(precmd)$USER@$HOSTNAME:${PWD:-?} # '
PS2='> '
PS3='#? '
PS4='+ '
PWD=/
RANDOM=5114
SECONDARY_STORAGE=/storage/sdcard1
SECONDS=289
SHELL=/system/bin/sh
TERM=linux
TERMINFO=/system/etc/terminfo
TMOUT=0
USER=shell
USER_ID=0
_=set
shell@android:/ #

And this is the script that I used to launch it...

#!/system/bin/sh

export ANDROID_PRIVATE="/mnt/myside/com.hipipal.qpyplus0/files"

export LD_LIBRARY_PATH="/mnt/myside/com.hipipal.qpyplus2/lib:$LD_LIBRARY_PATH"

export PATH="/mnt/myside/com.hipipal.qpyplus0/files/bin:/mnt/myside/com.hipipal.qpyplus2/scripts$PATH"

export PYTHONHOME="/mnt/myside/com.hipipal.qpyplus0/files:/mnt/myside/com.hipipal.qpyplus0/files/bin/python"

export PYTHONOPTIMIZE="2"

export PYTHONPATH="/mnt/myside/com.hipipal.qpyplus2/lib/site-packages:/mnt/myside/com.hipipal.qpyplus0/files/lib/site-packages:/mnt/myside/com.hipipal.qpyplus0/files/lib/lib-dynload:/mnt/myside/com.hipipal.qpyplus0/files/lib/config:/mnt/myside/com.hipipal.qpyplus0/files/lib/python27:/mnt/myside/com.hipipal.qpyplus0/files/lib/QPython"

export TMPDIR="/mnt/myside/com.hipipal.qpyplus2/cache"

/mnt/myside/com.hipipal.qpyplus0/files/bin/python

I was just gonna add the variables to my "mkshrc" file but I found problems with that chroot'ing into linux, I guess its best for now to set it up in a script that way it doesn't effect the global system so to speak, I just hope that if another program or script calles python it will work like normal ( i.e. set up the variables and launch python, or run said script in /system/bin called python)

What do you think I am missing?

I am almost certain that the normal program that does the launching does some strange linking of libraries and thats why I am missing stuff like the twisted set of modules etc, it got twisted's main file but not its sub files, I am guessing the folder in the same dir that twisted file is in will contain what I need. Do I need to add all those folders to my PYTHONPATH?