New submission from Glenn Linderman v+pyt...@g.nevcal.com:
My first time to use winreg and I am sure that some of this report is
documentation, but depending on behavior in other versions, maybe it is a
regression in code as well, but I doubt it.
I'm reading the 3.3 documentation, but using 3.2.3 for testing. The
documentation doesn't indicate any change execpt the exception thrown, between
3.2 and 3.3.
The documentation for OpenKey indicates it has 4 parameters, calling the 3rd
reserverd and the 4th access. These are given default values of 0 and
KEY_ALL_ACCESS, respectively, according to the function definition.
The text of the documentation does not further explain these parameters, rather
it explains res and sam which may appear to correspond... (that is problem
#1)
Assuming a correspondence, and a name change for those parameters somewhere
along the line (perhaps between 3.1 and 3.2 when named parameters became
supported, per the doc. note), then sam is defined to have a default value of
KEY_READ. That conflicts with the default value shown in the function
definition (this is problem #2).
The behavior of OpenKey in 3.2.2 seems to be that the access parameter actually
defaults to KEY_READ, rather than KEY_ALL_ACCESS. Since the documentation
is inconsistent in this area, I'm not sure if there was intended to be a code
change, nor what the prior behavior might have been, nor what the future
behavior is intended to be. If a change in default was intended, either it was
implemented wrong, or documented wrong, and there is no indication in the
documentation that a change was made, or should have been made (this is problem
#3).
I suspect the changes should all be to the documentation, changing the function
definition to read KEY_READ instead of KEY_ALL_ACCESS, and changing the
parameters in the text to be called reserved and access instead of res
and sam, and if so, then problem #3 is fictitious, just a result of the other
inconsistencies, and speculation.
--
assignee: docs@python
components: Documentation
messages: 161822
nosy: docs@python, v+python
priority: normal
severity: normal
status: open
title: winreg OpenKey doesn't work as documented
type: behavior
versions: Python 3.2, Python 3.3
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http://bugs.python.org/issue14943
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