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author | Benjamin Peterson <benjamin@python.org> | 2008-07-02 20:22:54 (GMT) |
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committer | Benjamin Peterson <benjamin@python.org> | 2008-07-02 20:22:54 (GMT) |
commit | 4118174315f4cba03208886af868fe31f1cd5b9d (patch) | |
tree | 9c06a3317ab82fbce405303931226e6cb3e6fbdb /Doc/glossary.rst | |
parent | 200ff1853b43a0f0c907705ca8250ffe2539ba77 (diff) | |
download | cpython-4118174315f4cba03208886af868fe31f1cd5b9d.zip cpython-4118174315f4cba03208886af868fe31f1cd5b9d.tar.gz cpython-4118174315f4cba03208886af868fe31f1cd5b9d.tar.bz2 |
Merged revisions 64475,64544-64545,64550,64557-64558,64565,64570,64577,64582-64583,64585,64590,64592-64593,64625,64630,64638,64647,64655-64656,64663-64664 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
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r64475 | raymond.hettinger | 2008-06-22 22:29:28 -0500 (Sun, 22 Jun 2008) | 1 line
Issue 3161: Missing import and test.
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r64544 | georg.brandl | 2008-06-26 16:12:55 -0500 (Thu, 26 Jun 2008) | 2 lines
Use newer versions of externals.
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r64545 | benjamin.peterson | 2008-06-26 16:23:30 -0500 (Thu, 26 Jun 2008) | 1 line
add a htmlview directive
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r64550 | brett.cannon | 2008-06-26 19:32:16 -0500 (Thu, 26 Jun 2008) | 2 lines
Ignore .pyc and .pyo files.
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r64557 | mark.dickinson | 2008-06-27 05:11:52 -0500 (Fri, 27 Jun 2008) | 3 lines
Remove trailing 'L's from numerator and denominator in the
repr() of a Fraction instance.
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r64558 | mark.dickinson | 2008-06-27 06:03:21 -0500 (Fri, 27 Jun 2008) | 2 lines
Add Jean Brouwers for his work on math.sum
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r64565 | raymond.hettinger | 2008-06-27 16:34:24 -0500 (Fri, 27 Jun 2008) | 1 line
Fix whitespace in example code.
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r64570 | hyeshik.chang | 2008-06-27 20:04:31 -0500 (Fri, 27 Jun 2008) | 8 lines
Give information for compililation of _multiprocessing.SemLock on FreeBSD:
FreeBSD's P1003.1b semaphore support is highly experimental and
it's disabled by default. Even if a user loads the experimental
kernel module manually, _multiprocessing doesn't work correctly due
to several known incompatibilities around sem_unlink and sem_getvalue,
yet.
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r64577 | raymond.hettinger | 2008-06-28 17:16:53 -0500 (Sat, 28 Jun 2008) | 1 line
Issue 3230: Do not the set specific size macro.
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r64582 | benjamin.peterson | 2008-06-28 18:06:05 -0500 (Sat, 28 Jun 2008) | 2 lines
convert test_audioop to unittest. Thanks to Giampaolo Rodola.
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r64583 | benjamin.peterson | 2008-06-28 18:06:49 -0500 (Sat, 28 Jun 2008) | 1 line
rewrap
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r64585 | benjamin.peterson | 2008-06-28 18:35:31 -0500 (Sat, 28 Jun 2008) | 1 line
fix typo
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r64590 | benjamin.peterson | 2008-06-29 08:43:07 -0500 (Sun, 29 Jun 2008) | 1 line
reinstate the ending backtick. thanks Nick :)
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r64592 | vinay.sajip | 2008-06-29 16:25:28 -0500 (Sun, 29 Jun 2008) | 2 lines
Removed out-of-date comment in _install_handlers and
used issubclass in place of equality comparison of classes.
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r64593 | vinay.sajip | 2008-06-29 16:27:15 -0500 (Sun, 29 Jun 2008) | 1 line
Updated to reflect change in logging.config to remove out-of-date comment in _install_handlers and the use of issubclass in place of equality comparison of classes.
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r64625 | georg.brandl | 2008-07-01 14:59:00 -0500 (Tue, 01 Jul 2008) | 2 lines
Add a link to PEP 324.
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r64630 | georg.brandl | 2008-07-01 15:18:10 -0500 (Tue, 01 Jul 2008) | 2 lines
#3216: fix Execute's parameter description.
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r64638 | georg.brandl | 2008-07-01 15:50:02 -0500 (Tue, 01 Jul 2008) | 2 lines
#1410739: add a footnote about "is" and "unusual" behavior.
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r64647 | benjamin.peterson | 2008-07-01 18:33:06 -0500 (Tue, 01 Jul 2008) | 1 line
add ABC to the glossary
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r64655 | mark.dickinson | 2008-07-02 04:37:01 -0500 (Wed, 02 Jul 2008) | 7 lines
Replace occurrences of '\d' with '[0-9]' in Decimal regex, to make sure
that the behaviour of Decimal doesn't change if/when re.UNICODE becomes
assumed in Python 3.0.
Also add a check that alternative Unicode digits (e.g. u'\N{FULLWIDTH
DIGIT ONE}') are *not* accepted in a numeric string.
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r64656 | nick.coghlan | 2008-07-02 08:09:19 -0500 (Wed, 02 Jul 2008) | 1 line
Issue 3190: pydoc now hides module __package__ attributes
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r64663 | jesse.noller | 2008-07-02 11:44:09 -0500 (Wed, 02 Jul 2008) | 1 line
Reenable the manager tests with Amaury's threading fix
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r64664 | facundo.batista | 2008-07-02 11:52:55 -0500 (Wed, 02 Jul 2008) | 4 lines
Issue #449227: Now with the rlcompleter module, callable objects are
added a '(' when completed.
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Diffstat (limited to 'Doc/glossary.rst')
-rw-r--r-- | Doc/glossary.rst | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/Doc/glossary.rst b/Doc/glossary.rst index cd8b7ac..3caa36e 100644 --- a/Doc/glossary.rst +++ b/Doc/glossary.rst @@ -16,6 +16,14 @@ Glossary The typical Python prompt of the interactive shell when entering code for an indented code block. + Abstract Base Class + Abstract Base Classes (abbreviated ABCs) complement :term:`duck-typing` by + providing a way to define interfaces when other techniques like :func:`hasattr` + would be clumsy. Python comes with many builtin ABCs for data structures + (in the :mod:`collections` module), numbers (in the :mod:`numbers` + module), and streams (in the :mod:`io` module). You can create your own + ABC with the :mod:`abc` module. + argument A value passed to a function or method, assigned to a name local to the body. A function or method may have both positional arguments and @@ -93,15 +101,16 @@ Glossary be any object with a :meth:`__hash__` function, not just integers starting from zero. Called a hash in Perl. - duck-typing + duck-typing Pythonic programming style that determines an object's type by inspection of its method or attribute signature rather than by explicit relationship to some type object ("If it looks like a duck and quacks like a duck, it must be a duck.") By emphasizing interfaces rather than specific types, well-designed code improves its flexibility by allowing polymorphic substitution. Duck-typing avoids tests using :func:`type` or - :func:`isinstance`. Instead, it typically employs :func:`hasattr` tests or - :term:`EAFP` programming. + :func:`isinstance`. (Note, however, that duck-typing can be complemented + with abstract base classes.) Instead, it typically employs :func:`hasattr` + tests or :term:`EAFP` programming. EAFP Easier to ask for forgiveness than permission. This common Python coding |