Near Final PEP 247 - API for Cryptographic Hash Functions
Oleg Broytmann
phd at phd.pp.ru
Fri Sep 21 06:35:06 EDT 2001
On Thu, Sep 20, 2001 at 12:20:41PM -0400, Andrew Kuchling wrote:
> http://python.sourceforge.net/peps/pep-0247.html
Why not to define __repr__ and __str__?
__repr__ = hexdigest
def str(self):
return "%s(%s)" % (self.__class__.__name__, self.hexdigest())
What about processing files? I think it is very common operation, so why
not stuff it here?
BUFSIZE = 16*1024
def process_file(self, f):
if type(f) == type(''): # If f is string - use it as file's name
infile = open(f, 'r')
else:
infile = f # else assume it is file or file-like object
try:
while 1:
buf = infile.read(BUFSIZE)
if not buf: break
self.update(buf)
finally:
if type(f) == type(''): # If f was opened - close it
infile.close()
Oleg.
----
Oleg Broytmann http://phd.pp.ru/ phd at phd.pp.ru
Programmers don't die, they just GOSUB without RETURN.
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