[Python-Dev] Python 2.5 Schedule (original) (raw)

Giovanni Bajo rasky at develer.com
Sat Mar 18 19:15:10 CET 2006

Raymond Hettinger <python at rcn.com> wrote:

They include [...] the str.partition function,

Where is the current version of this patch?

After reharsing the archives, I have an additional suggestion which I didn't find already mentioned in the discussion. What about:

str.partition() -> (left, right or None) str.rparition() -> (left or None, right)

which means:

"foo:bar".partition(":") -> ("foo", "bar") "foo:bar".rpartition(":") -> ("foo", "bar") "foo:".partition(":") -> ("foo", "") "foo:".rpartition(":") -> ("foo", "") ":foo".partition(":") -> ("", "foo") ":foo".rpartition(":") -> ("", "foo") "foo".partition(":") -> ("foo", None) "foo".rpartition(":") -> (None, "foo")

Notice that None-checking can be done as a way to know if the separator was found. I mentally went through the diff here (http://mail.python.org/pipermail/python-dev/2005-August/055781.html) and found out that most (all?) the usages of '_' disappears with this semantic.

Giovanni Bajo

More information about the Python-Dev mailing list