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- A new pickle protocol (protocol 3) is added with explicit support

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for bytes.  This is the default protocol.  It intentionally cannot
  be unpickled by Python 2.x.

- When a pickle	written	by Python 2.x contains an (8-bit) str
  instance, this is now decoded to a (Unicode) str instance.  The
  encoding used to do this defaults to ASCII, but can be overridden
  via two new keyword arguments to the Unpickler class.  Previously
  this would create bytes instances, which is usually wrong: str
  instances are often used to pickle attribute names etc., and text is
  more common than binary data anyway.
This commit is contained in:
Guido van Rossum 2008-03-17 22:56:06 +00:00
parent 953e4e52c4
commit f416981691
6 changed files with 165 additions and 55 deletions
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2
Lib/test/test_pickletools.py
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@ -6,7 +6,7 @@ from test.pickletester import AbstractPickleModuleTests
class OptimizedPickleTests(AbstractPickleTests, AbstractPickleModuleTests):
def dumps(self, arg, proto=0, fast=0):
def dumps(self, arg, proto=None):
return pickletools.optimize(pickle.dumps(arg, proto))
def loads(self, buf):