[Tutor] Case Insensitive Globing

[Mats Wichmann]

On 5/17/19 8:14 PM, Richard Damon wrote:
> I am working on a program to process some files created by an old
> windows program that created it files with varying case with a python
> program.
> 
> Using glob.glob on Windows seems to ignore the case, and find all the
> matching files.
> 
> The same directory, running the same program under Mac OS X, which also
> is a case insensitive file system, is only files that match the case of
> the glob, and is missing many of the files that were found under windows.
> 
> Is there an easy was to make glob match files as a case insensitive manner?
> 
> Or a simple way to do this with something else.
> 
> I am trying to do something like:
> 
>   for file in glob.glob(pattern): processfile(file)
> 

here's a little snippet I've used in the past - uses fnmatch to help
translate the pattern into a regular expression:

import os, re, fnmatch

def findfiles(pattern, path='.'):
    rule = re.compile(fnmatch.translate(pattern), re.IGNORECASE)
    return [name for name in os.listdir(path) if rule.match(name)]