At Thursday 7/12/2006 02:51, John Machin wrote:
Gabriel Genellina wrote:
>
> ftxt=open(filename,"rt")
Never seen that done before. It's not in the docs.
A remnant of my MSDOS+C background...
FWIW:
Python 2.5 (r25:51908, Sep 19 2006, 09:52:17) [MSC v.1310 32 bit
(Intel)] on win
32
Type "help", "copyright", "credits" or "license" for more information.
>>> f = open('foo.txt', 'rt')
>>> f = open('foo.txt', 'rs')
>>> f = open('foo.txt', 'ratsdroppings')
# Nary an exception raised, not the slightest murmur
Is this a bug or a feature? Or is it one of those good old "unspecified
behaviour" cases? MSVC rtl only?
The Python docs say only that the initial letter is checked. And the
ANSI 89 C says that other characters may follow after r, r+, etc.
"rt" is useless for an ANSI C compiler, since the default stream mode
is "text" -on systems which differentiate between text and binary-
and irrelevant on systems which don't do such distinction.
(And since I got used to write "rt", you can infer something about
*when* I began to write C programs...)
--
Gabriel Genellina
Softlab SRL
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