reading data file into a list

[Steven D'Aprano]

On Wed, 02 May 2012 02:59:55 -0700, ArifulHossain tuhin wrote:

> I have this data file which contains raw data in newline terminated for
> like below:
> 
> 10.6626
> 11.2683
> 11.9244
> 12.5758
> 14.1402
> 15.1636
> 
> Now i want to read that file and import this data into a numpy array.
> how should i go about it?

That depends. How big is the file? Could it include extraneous whitespace 
and possibly even comments? How do you expect to deal with bad data? What 
version of Python are you using? Who will be maintaining this, a Python 
expert or somebody who doesn't know Python very well?

Here's one way (untested but should work):


import numpy
f = open("my data file.txt", "r")
contents = numpy.array([float(line) for line in f])
f.close()


-- 
Steven