[Tutor] Regex for Filesystem path

[Alan Gauld]

On 06/11/2018 19:47, Cameron Simpson wrote:

> It is better to just construct the required path. Chdir there requires a 
> chdir back, and chdir affects all the relative paths your programme may 
> be using.
> 
> I'd use os.path.dirname to get '/a/b/c/d/test' and then just append to 
> it with os.path.join to contruct each directory path.

That was my original thought but the OP had his long
path one below test so would need to strip one level
off the dirname result. That's why I opted for chdir
as the simplest solution(albeit not very efficient)

> Do not use ctime, it is _not_ "creation" time. It is "last change to 
> inode" time. It _starts_ as creation time, but a chmod or even a 
> link/unlink can change it: anything that changes the metadata.

Good catch, I should have known that.
My bad.

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Alan G
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