[Types-sig] Type Annotations Progress report

Tim Peters tim.one@home.com
Fri, 16 Mar 2001 01:01:06 -0500

[Paul Prescod]
> Before I documented everything I wanted to do a real-world test. So I
> added type annotations to the os module. I even added a new type that
> was local to that module for handling P_WAIT, P_NOWAIT. I'd appreciate
> if people would at least take a cursory peek at the os module, if not
> the implementation.
> OS: www.prescod.net/pytypes/os.py
> Implementation: http://www.prescod.net/pytypes/typecheck.py

Paul, you know the rule:  each time this SIG reincarnates, the first msg
announcing an actual implementation kills it again <0.7 wink>.

> ...
> Remember that this is experimental, transitional, prototype, type
> annotation system. The syntax is not ideal. Nevertheless, I think it is
> quite simple, easy to use and immediately useful.


Note that there are several misdeclarations, such as:

def execl(file, *args):
    """execl(file, *args)

    Execute the executable file with argument list args, replacing the
    current process. """
    __types__= {"file: Old directory name": IString,
                    "args: New directory name": IString}
    execv(file, args)

args should be a tuple of IStrings, right?

    declarations<wink>-ly y'rs  - tim