On Mon, 29 Oct 2007 19:03:34 +0200, Hendrik van Rooyen <[EMAIL PROTECTED]> wrote: >"Tim Chase" <[EMAIL PROTECTED]> > >> > I think you are being a little bit unfair here: help(len) says: >> > >> > len(...) >> > len(object) -> integer >> > >> > Return the number of items of a sequence or mapping. >> > >> > which implies that the argument to len has the name 'object' (although in >> > fact it doesn't have a name). >> >> And to confound matters even further for the uninitiated, >> >> http://docs.python.org/lib/built-in-funcs.html#l2h-45 >> >> says that it's "len(s)" instead (but "len(s=[])" doesn't work either) > >Looks like a gotcha to me - its the difference between a keyword >(master = 42) and an assignment (s='I am a string') >
But it's not a keyword: >>> len(s=[]) Traceback (most recent call last): File "<stdin>", line 1, in ? TypeError: len() takes no keyword arguments >>> I think that's the issue here. Jean-Paul -- http://mail.python.org/mailman/listinfo/python-list