reddit discussion on replacing Python in 0install

[Steven Schveighoffer]

On Wed, 12 Jun 2013 16:41:03 -0400, Dmitry Olshansky  
<dmitry.olsh at gmail.com> wrote:

> 12-Jun-2013 22:36, Steven Schveighoffer пишет:
>> On Wed, 12 Jun 2013 12:40:53 -0400, Walter Bright
> ...
>> No, this is incorrect.  fflush is not called on subsequent writeln.
>>
>> Not only that, but we only have to do this on FILE * that were
>> initialized with unknown file descriptors (such as
>> stdin/stdout/stderr).  If we use fopen, you don't have to do this.
>>
>
> Steve, the only unchecked place right now is in the _last_ flush. Even  
> if you flush on first call it won't help some other forms of errors  
> (other then it's not writable to begin with). The only thing it will do  
> is surprise certain kinds of applications that use fdopen with "passed  
> in" sockets and whatnot. Basically a year later we'll see puzzled folks  
> with strace printouts.

The two problems described are separate problems.  Both can be addressed  
differently.

I think it's worth putting the flush at the end, and generating an  
exception.  But if we can catch the error on intialization, or at least on  
first use, it would be beneficial.

-Steve