The document discusses setting up Python development for Android. It describes downloading the Android SDK and creating an Android Virtual Device for testing. The steps include installing SL4A and Python for Android to enable scripting. A simple "Hello World" Python script is run to confirm the environment is working. The document ends with instructions for writing a small greeting script and running it on the virtual device.

1. CYBER SECURITY INFORMATION TECHNOLOGY
AppSec
CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
(By Rich Helton)
Python for
Droid (September 21, 2011)
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Office of Cyber Security
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2. Class Introduction
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 A good reference for an online Python class is
http://code.google.com/edu/languages/google-python-class/
introduction.html , PyQuick Python Class from Google University.
 Another place for reference Python Documentation,
http://www.python.org/doc/
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3. Python History
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 From
http://en.wikipedia.org/wiki/Python_(programming_language) ,
 Python is an interpreted, general-purpose high-level programming
language whose design philosophy emphasizes code readability.
 The reference implementation of Python (CPython) is free and open
source software and has a community-based development model, as
do nearly all of its alternative implementations.
 Python interpreters are available for many operating systems, and
Python programs can be packaged into stand-alone executable code
for many systems using various tools.
 Python’s implementation was started in December 1989 by Guido
van Rossum in the Netherlands as a successor to the ABD
programming language.
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4. CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
Android Python
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5. Android Python
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 Android is basically a Micro Edition of Linux, and because Linux
normally runs Python, Android can add a package to run Python.
 See
http://hameedullah.com/develop-your-first-android-application-in-
python.html
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6. Set up the Android SDK
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 First the Android environment, Software Development Kit (SDK),
needs to be set up on the local Desktop,
http://developer.android.com/sdk/installing.html :
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7. Android Virtual Device (AVD)
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 An AVD will have to be created for debugging and testing, this is
your target device,
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8. Android Python
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 Create an AVD from your now installed Android SDK, by creating a
new Virtual Device,
http://developer.android.com/guide/developing/devices/index.html
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9. Android Python
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 The “New” Virtual Device for Android,
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10. AVD Created
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 The new AVD called “PythonDev”,
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11. AVD Start
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 Start “PythonDev”,
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12. Use the Browser in the AVD
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 Open the Browser in “PythonDev”, and go to
http://code.google.com/p/android-scripting so install Android Scripting
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13. Download SL4A
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 After tapping on the QR code icon (center box) to download,
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14. Install SL4A
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 Double click the download to install,
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15. SL4A Installed
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 Installed,
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16. Now Python has to be installed
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 Go back in the browser and to the SL4A website, hit the download
URL for Python for Android and you will get,
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17. Install
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 After downloading, you need to install Python,
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18. Run a script
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 Go to applications and select SL4A,
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19. Run HelloWorld.py
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 Select the Run icon on script,
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20. Says “Hello, Android!”
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 You get the “Hello, Android!”
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21. See the scripts
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 Android uses a bridge, called “adb” to talk from the desktop to the
emulator. Under the android SDK/platform-tools, run “adb shell ls /
sdcard/sl4a/scripts”,
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22. Write a small script
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 We are going to write a small script that prints the inputted name
with a greeting, Notepad will work,
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23. Set the scripts
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 Run “adb push myGreet.py /sdcard/sl4a/scripts”, to copy this
python file to the emulator,
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24. Execute the script
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 Execute the “myGreet.py” script,
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25. Greeting
CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
 After typing in your name, you get a greeting,
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26. CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE HOMELAND SECURITY MULTI-USER NETWORK CYBER SECURITY INFORMATION TECHNOLOGY CRITICAL INFRASTRUCTURE
Questions?
Have a Good Day
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