[Tutor] regexes, thanks

[Matt]

I was actually wanting to take a list of filenames, for example:

Pink Floyd - 02 - Dogs.mp3
Japanese_Noh_Music_--_Gaku.mp3
asu - searching_2001_edit.MP3

...and pass it through a sequence of regexes (of which this is just one) 
to produce consistent filenames along the lines of:

Pink_Floyd-02-Dogs.mp3
Japanese_Noh_Music--Gaku.mp3
Asu--Searching_2001_Edit.mp3

I first read in the filenames, then produce a list of tuples [filename, 
new_filename], which are used for renaming at the end.  So, I need to 
perform operations on certain parts of the filename, not just the whole 
thing.  It seems that there would be a simple way to perform this stage. 
  Like,

new_filename = words.sub('([a-zA-Z]+)', '\u\1', filename)

But I couldn't get \1, \2 substitution working (had to use '\g<1>') and 
it doesn't look like python supports \u and \U ('man perlre' for info), 
so that I couldn't just put '\u\1' in the substitution string.  I'm just 
wondering if what I came up with is the most efficient method for 
performing what I need at this stage.  Anyway...

Thanks for the help.  I hadn't looked at globs before, so that will be 
very helpful.

-Matt

lumbricus@gmx.net wrote:
[snip!]
>>	
>>	def upper(a):
>>         	return(string.capitalize(a.string[a.start():a.end()]))
>>
>>	words = re.compile('([a-zA-Z]+)')
>>	new_filename = words.sub(upper, filename)
> 
> 
> Something along
> 
> import glob
> for f in glob.glob("*.mp3"):
>     new=f.upper()
> 
> might be what you want?
> 
> HTH, J"o!