Does hashlib support a file mode?

[Mel]

Phlip wrote:

> If I call m = md5() twice, I expect two objects.
> 
> I am now aware that Python bends the definition of "call" based on
> where the line occurs. Principle of least surprise.

Actually, in

def file_to_hash(path, m = hashlib.md5()):

hashlib.md5 *is* called once; that is when the def statement is executed.

Later on, when file_to_hash gets called, the value of m is either used as 
is, as the default parameter, or is replaced for the duration of the call by 
another object supplied by the caller.

	Mel.