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4. Should be subclassable so third parties can offer richer subclasses. Use {{{self.__class__()}}} instead of {{{Path()}}} in method bodies. Alternate constructors like {{{Path.cwd()}}} should be a class methods rather than static methods. (MikeOrr)

Path class Pre-Pre-PEP

Implementation(s)

Reinhold has modified Jason Orendorff's original path.py to fit discussions in python-dev and comp.lang.python and has placed it in Python CVS under nondist/sandbox/path.

Other implementations to look at include the original, path.py and some things that others have mentioned on c.l.p. and python-dev.

Design Principles

1. A Path should be a drop-in replacement for a str or unicode as much as possible.

2. Properties are the interface for immutable attributes of a Path. For example, a Path's basename will be the same regardless of data on the local filesystem.

3. Methods are the interface for mutable attributes, for example, the last-modified-time.

4. Should be subclassable so third parties can offer richer subclasses. Use self.__class__() instead of Path() in method bodies. Alternate constructors like Path.cwd() should be a class methods rather than static methods. (MikeOrr)

PathClass (last edited 2009-09-13 06:07:15 by 216)

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