[Numpy-discussion] loadtxt broken if file does not end in newline

[Christopher Barker]

Robert Kern wrote:
> Fixed in r4827.

Thanks Robert. For the record, this is the fixed version:

        comment_start = line.find(comments)
         if comment_start > 0:
             line = line[:comments_start].strip()
         else:
             line = line.strip()

Just as a matter of interest, why this, rather than line.index()? Are 
exceptions slower than an if test?

Also,

I don't see any io tests in:

numpy/lib/tests

Is that where they should be? It seems like a good idea to have a few...

If I did find the time to write some tests -- how does one go about it 
for this sort of thing? Do I put a couple sample input files in SVN? Or 
does the test code write out the sample files, then read them in to 
test? Or maybe do it all in memory with sStringIO or something. Are 
there any examples of tests of file reading code that I could borrow from?

thanks,
-Chris





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