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Tue Jul 22 07:01:42 CEST 2008 · https://mail.python.org/pipermail/python-dev/2008-July/081493.html

> Well, the real problem is os.urandom(4.2) which goes to an unlimited loop:
> 
>   while len(bytes) < n:
>       bytes += read(_urandomfd, n - len(bytes))
> 
> because read(0.2) works as read(0) :-/

I can't quite accept that as a bug in the library. If you give invalid
parameters, Python should not crash, but it may start to behave in a
nonsensical way.

Of course, it would be possible to move the conversion warning one layer
up, into os.urandom; if the argument is float, raise a warning, and then
truncate.

Regards,
Martin

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[Python-Dev] fileobj.read(float): warning or error?