[Tutor] New to Python

[Vignesh Sathiamoorthy]

Hi Jeremy,

I am new to Python too. I find docs.python.org very helpful.

*Understanding functions:*

http://docs.python.org/tutorial/controlflow.html#defining-functions

*Reading and Writing Files:*

http://docs.python.org/tutorial/inputoutput.html#reading-and-writing-files

*File Objects:*

http://docs.python.org/library/stdtypes.html#file-objects

*Comments - Coding Style*

http://www.python.org/dev/peps/pep-0008/#comments


Hope the above links are useful.

Thanks,
Vignesh

On Thu, May 17, 2012 at 11:45 PM, Jeremy Traurig
<jeremy.traurig at gmail.com>wrote:

> Hello,
>
> I very new to python and have been playing around with some simple code
> that I would eventually use in the real word. Below is the code I have
> created. I want the code to read data from a file called SIL633.txt and
> then output that data into another file called test.txt. below is my code:
>
> #! /usr/bin/env python
> # Read NRG Text File
> def readNRGtxt():
> import numpy as np
> f1 = open('SIL633_original.txt','r')
>  data = np.genfromtxt(f1,delimiter='\t',skip_header=141)
> f1.close
> f2 = open('test.txt','w')
>  np.savetxt(f2,data,fmt='%6.2f',delimiter='\t')
> f2.close
>
> I'm running this on mac 10.5.8. When I run this script from the command
> line, there is no file output. However, if I remove the "def" statement in
> the script and run again from the command line, a test.txt file is output.
> I guess I'm trying to understand why using the def statement changes how
> the script operates and since it does, how do I correct this code so it
> runs from the command line with the def statement.
>
> thanks for any help -- jeremy
>
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