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author | Tim Peters <tim.peters@gmail.com> | 2001-09-03 05:47:38 (GMT) |
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committer | Tim Peters <tim.peters@gmail.com> | 2001-09-03 05:47:38 (GMT) |
commit | 5d2b77cf31c5a3cbabc74936831480b9caea3a12 (patch) | |
tree | dabb2f29553f94a18e3c5ae96d6f232196415f50 /Lib/test/test_descrtut.py | |
parent | 95c99e57b37ede725af1fdd1ff914c91284e3048 (diff) | |
download | cpython-5d2b77cf31c5a3cbabc74936831480b9caea3a12.zip cpython-5d2b77cf31c5a3cbabc74936831480b9caea3a12.tar.gz cpython-5d2b77cf31c5a3cbabc74936831480b9caea3a12.tar.bz2 |
Make dir() wordier (see the new docstring). The new behavior is a mixed
bag. It's clearly wrong for classic classes, at heart because a classic
class doesn't have a __class__ attribute, and I'm unclear on whether
that's feature or bug. I'll repair this once I find out (in the
meantime, dir() applied to classic classes won't find the base classes,
while dir() applied to a classic-class instance *will* find the base
classes but not *their* base classes).
Please give the new dir() a try and see whether you love it or hate it.
The new dir([]) behavior is something I could come to love. Here's
something to hate:
>>> class C:
... pass
...
>>> c = C()
>>> dir(c)
['__doc__', '__module__']
>>>
The idea that an instance has a __doc__ attribute is jarring (of course
it's really c.__class__.__doc__ == C.__doc__; likewise for __module__).
OTOH, the code already has too many special cases, and dir(x) doesn't
have a compelling or clear purpose when x isn't a module.
Diffstat (limited to 'Lib/test/test_descrtut.py')
-rw-r--r-- | Lib/test/test_descrtut.py | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/Lib/test/test_descrtut.py b/Lib/test/test_descrtut.py index edb0388..121eed5 100644 --- a/Lib/test/test_descrtut.py +++ b/Lib/test/test_descrtut.py @@ -97,14 +97,15 @@ just like classic classes: >>> a.default = -1000 >>> print a["noway"] -1000 - >>> print dir(a) - ['default'] + >>> 'default' in dir(a) + 1 >>> a.x1 = 100 >>> a.x2 = 200 >>> print a.x1 100 - >>> print dir(a) - ['default', 'x1', 'x2'] + >>> d = dir(a) + >>> 'default' in d and 'x1' in d and 'x2' in d + 1 >>> print a.__dict__ {'default': -1000, 'x2': 200, 'x1': 100} >>> |