[Python-bugs-list] [ python-Bugs-504343 ] Unicode docstrings and new style classes

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Thu, 17 Jan 2002 05:45:53 -0800


Bugs item #504343, was opened at 2002-01-16 04:10
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Category: Type/class unification
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Walter Dörwald (doerwalter)
Assigned to: Nobody/Anonymous (nobody)
Summary: Unicode docstrings and new style classes

Initial Comment:
Unicode docstrings don't work with new style
classes. With old style classes they work:
----
class foo:
   u"föö"
class bar(object):
   u"bär"

print repr(foo.__doc__)
print repr(bar.__doc__)
----
This prints
----
u'f\xf6\xf6'
None


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>Comment By: Martin v. Löwis (loewis)
Date: 2002-01-17 05:45

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Adding tp_docobject would work, although it may be somewhat
hackish (why should we have this kind of redundancy). I'm
not sure how you will convert that to the 8bit version,
though: what encoding? If you use the default encoding,
tp_doc will be sometimes set, sometimes it won't.

In any case, I'd encourage you to produce a patch.

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Comment By: Walter Dörwald (doerwalter)
Date: 2002-01-16 05:03

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What we could do is add a new slot tp_docobject, that holds 
the doc object. Then type_members would include

{"__doc__", T_OBJECT, offsetof(PyTypeObject, tp_docobject), 
READONLY},

tp_doc should be initialized with an 8bit version of 
tp_docobject (using the default encoding and error='ignore' 
if tp_docobject is unicode).

Does this sound reasonably?

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Comment By: Martin v. Löwis (loewis)
Date: 2002-01-16 04:18

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There is a good chance that is caused by the lines following

XXX What if it's a Unicode string?  Don't know -- this
ignores it.

in Objects/typeobject.c. :-) Would you like to investigate
the options and propose a patch?

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