On Aug 13, 1:20 am, "Gabriel Genellina" <gagsl-...@yahoo.com.ar> wrote: > En Wed, 12 Aug 2009 01:27:47 -0300, naaman <arphak...@gmail.com> escribió: > > > I'm writing my first Python script and > > I want to use fileinput to open a file in r+ mode. > > Tried fileinput.input(sys.argv[1:],"r+") but that didn't work. > > ANy ideas? > > Don't use fileinput, it can't handle r+, only sequencial access. > Even if you could use it, the documentation says [1]: > fileinput.input([files[, inplace[, backup[, mode[, openhook]]]]]) > > "r+" corresponds to the `inplace` parameter (behaving like inplace=True) > instead of `mode`. You could write fileinput.input(sys.argv[1:], > mode="r+") instead - but again from the docs: "mode... must be one of 'r', > 'rU', 'U' and 'rb'" > > > Need to find and overwrite a line in a file several times. > > I can do it using open and seek() etc. but was wondering if I can use > > fileinput. > > open+seek is the way to do that (assuming you don't alter the line length) > > [1]http://docs.python.org/library/fileinput.html#fileinput.input > > -- > Gabriel Genellina
unfortunately, I am overwriting shorter with longer -- http://mail.python.org/mailman/listinfo/python-list
