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Handling of Paths with multiple extensions is currently not so easy with pathlib. Specifically, I don't think there is an easy way to go from "foo.tar.gz" to "foo.ext", because Path.with_suffix only replaces the last suffix. I would therefore like to suggest either 1/ add Path.replace_suffix, such that Path("foo.tar.gz").replace_suffix(".tar.gz", ".ext") == Path("foo.ext") (this would also provide extension-checking capabilities, raising ValueError if the first argument is not a valid suffix of the initial path); or 2/ add a second argument to Path.with_suffix, "n_to_strip" (although perhaps with a better name), defaulting to 1, such that Path("foo.tar.gz").with_suffix(".ext", 0) == Path("foo.tar.gz.ext") Path("foo.tar.gz").with_suffix(".ext", 1) == Path("foo.tar.ext") Path("foo.tar.gz").with_suffix(".ext", 2) == Path("foo.ext") # set n_to_strip to len(path.suffixes) for stripping all of them. Path("foo.tar.gz").with_suffix(".ext", 3) raises a ValueError. Best, Antony
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After some more thought, a better API may be to provide a "with_suffixes" method, such that "p.with_suffixes(*s).suffixes == s" (just like "p.with_suffix(s) == s"). For example, we'd have Path("foo.tar.gz").with_suffixes(".ext") == Path("foo.ext") Path("foo.ext").with_suffixes(".tar", ".gz") == Path("foo.tar.gz") I guess this is a less popular topic than discussing new empty set literals though :) but if you really like Unicode, you could just use https://github.com/ehamberg/vim-cute-python Antony 2014-05-21 13:38 GMT-07:00 Antony Lee <antony.lee@berkeley.edu>:
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After some more thought, a better API may be to provide a "with_suffixes" method, such that "p.with_suffixes(*s).suffixes == s" (just like "p.with_suffix(s) == s"). For example, we'd have Path("foo.tar.gz").with_suffixes(".ext") == Path("foo.ext") Path("foo.ext").with_suffixes(".tar", ".gz") == Path("foo.tar.gz") I guess this is a less popular topic than discussing new empty set literals though :) but if you really like Unicode, you could just use https://github.com/ehamberg/vim-cute-python Antony 2014-05-21 13:38 GMT-07:00 Antony Lee <antony.lee@berkeley.edu>:
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Antony Lee