[Python-ideas] PEP 428 - object-oriented filesystem paths

[Ethan Furman]

Stephen J. Turnbull wrote:
> Ethan Furman writes:
>> Eric Snow wrote:
>>>--> p = PureNTPath('c:/orders/12345/abc67890.dbf')
>>>--> p.replace(ext='.csv')
>>> PureNTPath('c:\\orders\\12345\\abc67890.csv')
>> 
>> +1
> 
> How about a more general subst() method?  Indeed, it would need
> keyword arguments for named components like ext, but I often do things
> like "mv ~/Maildir/{tmp,new}/42" in the shell.  I think it would be
> useful to be able to replace any component of a path.

How would 'subst' differ from 'replace'?  As you can see from the 
example, the keyword 'ext' is being used to specify with component gets 
replaced.

~Ethan~