regular expressions eliminating filenames of type foo.thumbnail.jpg

[Justin Ezequiel]

On Jun 25, 1:00 pm, Justin Ezequiel <justin.mailingli... at gmail.com>
wrote:
> [ p for p in os.listdir(dir)
>   if os.path.isfile(os.path.join(dir,p))
>   and p.lower().find('.thumbnail.')==-1 ]

if you really want a regexp solution, the following seems to work
(?i)(?<!\.thumbnail)\.jpe?g$

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