--- a/writing_python_scripts.rst	Wed Oct 13 11:15:18 2010 +0530
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,136 +0,0 @@
-Hello friends and welcome to the tutorial on "Writing Python scripts"
-
-{{{ Show the slide containing title }}}
-
-{{{ Show the slide containing the outline slide }}}
-
-In this tutorial, we shall learn
-
- * How write Python scripts 
-
-Often we will have to reuse the code that we haave written. We do that by
-writing functions. Functions are bundled into packages and are imported as and
-required in the script.
-
-Let us first write a function that computes the gcd of two numbers and save it
-in a script.
-
-{{{ Open an editor and start typing out the following code }}}
-::
-
-    def gcd(a, b):
-
-        while b:
-            a, b = b, a%b
-
-        return a
-
-We shall write an test function in the script that tests the gcd function every
-time the script is run.
-
-{{{ Add to the script }}}
-
-::
-
-    if gcd(40, 12) == 4:
-        print "Everything OK"
-    else:
-        print "The GCD function is wrong"
-
-Let us save the file as script.py in /home/fossee/gcd_script.py
-
-We shall run the script by doing
-::
-
-    $ python /home/fossee/gcd_script.py
-
-We can see that the script is executed and everything is fine.
-
-What if we want to use the gcd function in some of our later scripts. This
-is also possible since every python file can be used as a module.
-
-But first, we shall understand what happens when you import a module.
-
-Open IPython and type
-::
-
-    import sys
-    sys.path
-
-This is a list of locations where python searches for a module when it
-encounters an import statement.
-
-hence when we just did =import sys=, python searches for a file named sys.py or
-a folder named sys in all these locations one by one, until it finds one.
-
-We can place our script in any one of these locations and can import it.
-
-The first item in the list is an empty string which means the current working
-directory is also searched. 
-
-Alternatively, we can also import the module if we are working in same 
-directory where the script exists.
-
-Since we are in /home/fossee, we can simply do
-::
-
-    import gcd_script
-    
-We can see that the gcd_script is imported. But the test code that we added at
-the end of the file is also executed.
-
-But we want the test code to be executed only when the file is run as a python 
-script and not when it is imported.
-
-This is possible by using =__name__= variable.
-
-First we shall look at how to use the idiom and then understand how it works.
-
-Go to the file and add
-::
-
-    if __name__ == "__main__":
-        
-before the test code and indent the test code.
-
-Let us first run the code.
-::
-
-    $ python gcd_script.py
-
-We can see that the test runs successfully.
-
-Now we shall import the file
-::
-    
-    import gcd_script
-
-We see that now the test code is not executed.
-
-The __name__ variable is local to every module and it is equal to __main__ only
-when the file is run as a script.
-
-hence all the code that goes after __name__ == "__main__" is executed only when
-the file is run as a python script.
-
-{{{ Show summary slide }}}
-
-This brings us to the end of the tutorial.
-we have learnt
-
- * What happens when we import a module
- * How to use a script as a module
- * How to write test functions using the __name__ idiom 
-
-{{{ Show the "sponsored by FOSSEE" slide }}}
-
-#[Nishanth]: Will add this line after all of us fix on one.
-This tutorial was created as a part of FOSSEE project, NME ICT, MHRD India
-
-Hope you have enjoyed and found it useful.
-Thankyou
- 
-.. Author              : Nishanth
-   Internal Reviewer 1 : 
-   Internal Reviewer 2 : 
-   External Reviewer   :