diff options
author | Christian Heimes <christian@cheimes.de> | 2008-01-06 16:59:19 (GMT) |
---|---|---|
committer | Christian Heimes <christian@cheimes.de> | 2008-01-06 16:59:19 (GMT) |
commit | faf2f63faf9e73c816f0a8bf7f5998757280b50a (patch) | |
tree | 37c716be49ae492a67785b277187275a73b06159 /Doc/reference/compound_stmts.rst | |
parent | e239b007e1fd7f6f20486e07dd77db744b91a9e1 (diff) | |
download | cpython-faf2f63faf9e73c816f0a8bf7f5998757280b50a.zip cpython-faf2f63faf9e73c816f0a8bf7f5998757280b50a.tar.gz cpython-faf2f63faf9e73c816f0a8bf7f5998757280b50a.tar.bz2 |
Merged revisions 59703-59773 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r59704 | christian.heimes | 2008-01-04 04:15:05 +0100 (Fri, 04 Jan 2008) | 1 line
Moved include "Python.h" in front of other imports to silence a warning.
........
r59706 | raymond.hettinger | 2008-01-04 04:22:53 +0100 (Fri, 04 Jan 2008) | 10 lines
Minor fix-ups to named tuples:
* Make the _replace() method respect subclassing.
* Using property() to make _fields read-only wasn't a good idea.
It caused len(Point._fields) to fail.
* Add note to _cast() about length checking and alternative with the star-operator.
........
r59707 | jeffrey.yasskin | 2008-01-04 09:01:23 +0100 (Fri, 04 Jan 2008) | 3 lines
Make math.{floor,ceil}({int,long}) return float again for backwards
compatibility after r59671 made them return integral types.
........
r59709 | christian.heimes | 2008-01-04 14:21:07 +0100 (Fri, 04 Jan 2008) | 1 line
Bug #1713: posixpath.ismount() claims symlink to a mountpoint is a mountpoint.
........
r59712 | lars.gustaebel | 2008-01-04 15:00:33 +0100 (Fri, 04 Jan 2008) | 5 lines
Issue #1735: TarFile.extractall() now correctly sets
directory permissions and times.
(will backport to 2.5)
........
r59714 | andrew.kuchling | 2008-01-04 15:47:17 +0100 (Fri, 04 Jan 2008) | 1 line
Update links to bug/patch tracker
........
r59716 | christian.heimes | 2008-01-04 16:23:30 +0100 (Fri, 04 Jan 2008) | 1 line
Added interface to Windows' WSAIoctl and a simple example for a network sniffer.
........
r59717 | christian.heimes | 2008-01-04 16:29:00 +0100 (Fri, 04 Jan 2008) | 1 line
And here is the rest of Hirokazu Yamamoto's patch for VS6.0 support. Thanks Hiro!
........
r59719 | christian.heimes | 2008-01-04 16:34:06 +0100 (Fri, 04 Jan 2008) | 1 line
Reverted last transaction. It's the wrong branch.
........
r59721 | christian.heimes | 2008-01-04 16:48:06 +0100 (Fri, 04 Jan 2008) | 1 line
socket.ioctl is only available on Windows
........
r59722 | andrew.kuchling | 2008-01-04 19:24:41 +0100 (Fri, 04 Jan 2008) | 1 line
Fix markup
........
r59723 | andrew.kuchling | 2008-01-04 19:25:05 +0100 (Fri, 04 Jan 2008) | 1 line
Fix markup
........
r59725 | guido.van.rossum | 2008-01-05 01:59:59 +0100 (Sat, 05 Jan 2008) | 3 lines
Patch #1725 by Mark Dickinson, fixes incorrect conversion of -1e1000
and adds errors for -0x.
........
r59726 | guido.van.rossum | 2008-01-05 02:21:57 +0100 (Sat, 05 Jan 2008) | 2 lines
Patch #1698 by Senthil: allow '@' in username when parsed by urlparse.py.
........
r59727 | raymond.hettinger | 2008-01-05 02:35:43 +0100 (Sat, 05 Jan 2008) | 1 line
Improve namedtuple's _cast() method with a docstring, new name, and error-checking.
........
r59728 | raymond.hettinger | 2008-01-05 03:17:24 +0100 (Sat, 05 Jan 2008) | 1 line
Add error-checking to namedtuple's _replace() method.
........
r59730 | fred.drake | 2008-01-05 05:38:38 +0100 (Sat, 05 Jan 2008) | 2 lines
clean up a comment
........
r59731 | jeffrey.yasskin | 2008-01-05 09:47:13 +0100 (Sat, 05 Jan 2008) | 11 lines
Continue rolling back pep-3141 changes that changed behavior from 2.5. This
round included:
* Revert round to its 2.6 behavior (half away from 0).
* Because round, floor, and ceil always return float again, it's no
longer necessary to have them delegate to __xxx___, so I've ripped
that out of their implementations and the Real ABC. This also helps
in implementing types that work in both 2.6 and 3.0: you return int
from the __xxx__ methods, and let it get enabled by the version
upgrade.
* Make pow(-1, .5) raise a ValueError again.
........
r59736 | andrew.kuchling | 2008-01-05 16:13:49 +0100 (Sat, 05 Jan 2008) | 1 line
Fix comment typo
........
r59738 | thomas.heller | 2008-01-05 18:15:44 +0100 (Sat, 05 Jan 2008) | 1 line
Add myself.
........
r59739 | georg.brandl | 2008-01-05 18:49:17 +0100 (Sat, 05 Jan 2008) | 2 lines
Fix C++-style comment.
........
r59742 | georg.brandl | 2008-01-05 20:28:16 +0100 (Sat, 05 Jan 2008) | 2 lines
Remove with_statement future imports from 2.6 docs.
........
r59743 | georg.brandl | 2008-01-05 20:29:45 +0100 (Sat, 05 Jan 2008) | 2 lines
Simplify index entries; fix #1712.
........
r59744 | georg.brandl | 2008-01-05 20:44:22 +0100 (Sat, 05 Jan 2008) | 2 lines
Doc patch #1730 from Robin Stocker; minor corrections mostly to os.rst.
........
r59749 | georg.brandl | 2008-01-05 21:29:13 +0100 (Sat, 05 Jan 2008) | 2 lines
Revert socket.rst to unix-eol.
........
r59750 | georg.brandl | 2008-01-05 21:33:46 +0100 (Sat, 05 Jan 2008) | 2 lines
Set native svn:eol-style property for text files.
........
r59752 | georg.brandl | 2008-01-05 21:46:29 +0100 (Sat, 05 Jan 2008) | 2 lines
#1719: capitalization error in "UuidCreate".
........
r59753 | georg.brandl | 2008-01-05 22:02:25 +0100 (Sat, 05 Jan 2008) | 2 lines
Repair markup.
........
r59754 | georg.brandl | 2008-01-05 22:10:50 +0100 (Sat, 05 Jan 2008) | 2 lines
Use markup.
........
r59757 | christian.heimes | 2008-01-05 22:35:52 +0100 (Sat, 05 Jan 2008) | 1 line
Final adjustments for #1601
........
r59758 | guido.van.rossum | 2008-01-05 23:19:06 +0100 (Sat, 05 Jan 2008) | 3 lines
Patch #1637: fix urlparse for URLs like 'http://x.com?arg=/foo'.
Fix by John Nagle.
........
r59759 | guido.van.rossum | 2008-01-05 23:20:01 +0100 (Sat, 05 Jan 2008) | 2 lines
Add John Nagle (of issue #1637).
........
r59765 | raymond.hettinger | 2008-01-06 10:02:24 +0100 (Sun, 06 Jan 2008) | 1 line
Small code simplification. Forgot that classmethods can be called from intances.
........
r59766 | martin.v.loewis | 2008-01-06 11:09:48 +0100 (Sun, 06 Jan 2008) | 2 lines
Use vcbuild for VS 2009.
........
r59767 | martin.v.loewis | 2008-01-06 12:03:43 +0100 (Sun, 06 Jan 2008) | 2 lines
Package using VS 2008.
........
r59768 | martin.v.loewis | 2008-01-06 12:13:16 +0100 (Sun, 06 Jan 2008) | 2 lines
Don't try to package msvcr90 for the moment.
........
r59769 | georg.brandl | 2008-01-06 15:17:36 +0100 (Sun, 06 Jan 2008) | 4 lines
#1696393: don't check for '.' and '..' in ntpath.walk since
they aren't returned from os.listdir anymore.
Reported by Michael Haggerty.
........
r59770 | georg.brandl | 2008-01-06 15:27:15 +0100 (Sun, 06 Jan 2008) | 3 lines
#1742: don't raise exception on os.path.relpath("a", "a"), but return os.curdir.
Reported by Jesse Towner.
........
r59771 | georg.brandl | 2008-01-06 15:33:52 +0100 (Sun, 06 Jan 2008) | 2 lines
#1591: Clarify docstring of Popen3.
........
r59772 | georg.brandl | 2008-01-06 16:30:34 +0100 (Sun, 06 Jan 2008) | 2 lines
#1680: fix context manager example function name.
........
r59773 | georg.brandl | 2008-01-06 16:34:57 +0100 (Sun, 06 Jan 2008) | 2 lines
#1755097: document default values for [].sort() and sorted().
........
Diffstat (limited to 'Doc/reference/compound_stmts.rst')
-rw-r--r-- | Doc/reference/compound_stmts.rst | 45 |
1 files changed, 31 insertions, 14 deletions
diff --git a/Doc/reference/compound_stmts.rst b/Doc/reference/compound_stmts.rst index 927930a..ffd7423 100644 --- a/Doc/reference/compound_stmts.rst +++ b/Doc/reference/compound_stmts.rst @@ -78,7 +78,10 @@ on a separate line for clarity. The :keyword:`if` statement =========================== -.. index:: statement: if +.. index:: + statement: if + keyword: elif + keyword: else keyword: elif keyword: else @@ -105,6 +108,7 @@ The :keyword:`while` statement statement: while keyword: else pair: loop; statement + keyword: else The :keyword:`while` statement is used for repeated execution as long as an expression is true: @@ -139,6 +143,9 @@ The :keyword:`for` statement keyword: else pair: target; list pair: loop; statement + keyword: in + keyword: else + pair: target; list object: sequence The :keyword:`for` statement is used to iterate over the elements of a sequence @@ -208,7 +215,10 @@ returns the list ``[0, 1, 2]``. The :keyword:`try` statement ============================ -.. index:: statement: try +.. index:: + statement: try + keyword: except + keyword: finally .. index:: keyword: except The :keyword:`try` statement specifies exception handlers and/or cleanup code @@ -223,7 +233,8 @@ for a group of statements: try2_stmt: "try" ":" `suite` : "finally" ":" `suite` -The :keyword:`except` clause(s) specify one or more exception handlers. When no + +The :keyword:`except` clause(s) specify one or more exception handlers. When no exception occurs in the :keyword:`try` clause, no exception handler is executed. When an exception occurs in the :keyword:`try` suite, a search for an exception handler is started. This search inspects the except clauses in turn until one @@ -379,6 +390,10 @@ The execution of the :keyword:`with` statement proceeds as follows: location for the kind of exit that was taken. + In Python 2.5, the :keyword:`with` statement is only allowed when the + ``with_statement`` feature has been enabled. It is always enabled in + Python 2.6. + .. seealso:: :pep:`0343` - The "with" statement @@ -393,8 +408,10 @@ Function definitions ==================== .. index:: - pair: function; definition statement: def + pair: function; definition + pair: function; name + pair: name; binding object: user-defined function object: function pair: function; name @@ -513,13 +530,13 @@ Class definitions ================= .. index:: - pair: class; definition - statement: class object: class - single: inheritance + statement: class + pair: class; definition pair: class; name pair: name; binding pair: execution; frame + single: inheritance A class definition defines a class object (see section :ref:`types`): @@ -554,13 +571,13 @@ is equivalent to :: Foo = f1(arg)(f2(Foo)) **Programmer's note:** Variables defined in the class definition are class -variables; they are shared by all instances. To define instance variables, they -must be given a value in the :meth:`__init__` method or in another method. Both -class and instance variables are accessible through the notation -"``self.name``", and an instance variable hides a class variable with the same -name when accessed in this way. Class variables with immutable values can be -used as defaults for instance variables. Descriptors can be used to create -instance variables with different implementation details. +can be set in a method with ``self.name = value``. Both class and instance +variables are accessible through the notation "``self.name``", and an instance +variable hides a class variable with the same name when accessed in this way. +Class variables can be used as defaults for instance variables, but using +mutable values there can lead to unexpected results. For :term:`new-style +class`\es, descriptors can be used to create instance variables with different +implementation details. .. XXX add link to descriptor docs above |