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Kirill Smelkov
cpython
Commits
d4462300
Commit
d4462300
authored
Nov 26, 2003
by
Raymond Hettinger
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Plain Diff
Nits from a review of the documentation update.
parent
72452650
Changes
4
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4 changed files
with
24 additions
and
12 deletions
+24
-12
Doc/lib/libfuncs.tex
Doc/lib/libfuncs.tex
+1
-1
Doc/lib/libsets.tex
Doc/lib/libsets.tex
+2
-5
Doc/tut/tut.tex
Doc/tut/tut.tex
+3
-3
Doc/whatsnew/whatsnew24.tex
Doc/whatsnew/whatsnew24.tex
+18
-3
No files found.
Doc/lib/libfuncs.tex
View file @
d4462300
...
...
@@ -1063,7 +1063,7 @@ It's a function
\versionchanged
[Formerly,
\function
{
zip()
}
required at least one argument
and
\code
{
zip()
}
raised a
\exception
{
TypeError
}
instead of returning
\code
{
[]
}
]
{
2.4
}
an empty list.
]
{
2.4
}
\end{funcdesc}
...
...
Doc/lib/libsets.tex
View file @
d4462300
...
...
@@ -91,7 +91,7 @@ the following operations:
{
new set with a shallow copy of
\var
{
s
}}
\end{tableiii}
Note, th
is
non-operator versions of
\method
{
union()
}
,
Note, th
e
non-operator versions of
\method
{
union()
}
,
\method
{
intersection()
}
,
\method
{
difference()
}
, and
\method
{
symmetric
_
difference()
}
will accept any iterable as an argument.
In contrast, their operator based counterparts require their arguments to
...
...
@@ -158,10 +158,7 @@ but not found in \class{ImmutableSet}:
{
remove all elements from set
\var
{
s
}}
\end{tableiii}
\versionchanged
[Earlier versions had an
\method
{
update()
}
method; use
\method
{
union
_
update()
}
instead]
{
2.3.1
}
Note, this non-operator versions of
\method
{
union
_
update()
}
,
Note, the non-operator versions of
\method
{
union
_
update()
}
,
\method
{
intersection
_
update()
}
,
\method
{
difference
_
update()
}
, and
\method
{
symmetric
_
difference
_
update()
}
will accept any iterable as
an argument.
...
...
Doc/tut/tut.tex
View file @
d4462300
...
...
@@ -2161,11 +2161,11 @@ pattern, list comprehensions can compactly specify the key-value list.
\section
{
Looping Techniques
\label
{
loopidioms
}}
When looping through dictionaries, the key and corresponding value can
be retrieved at the same time using the
\method
{
items
()
}
method.
be retrieved at the same time using the
\method
{
ite
rite
ms
()
}
method.
\begin
{
verbatim
}
>>> knights
=
{
'gallahad': 'the pure', 'robin': 'the brave'
}
>>> for k, v in knights.items
()
:
>>> for k, v in knights.ite
rite
ms
()
:
... print k, v
...
gallahad the pure
...
...
@@ -3957,7 +3957,7 @@ list, and the function object is called with this new argument list.
\section
{
Random Remarks
\label
{
remarks
}}
[
These should perhaps be placed more carefully...
]
%
[These should perhaps be placed more carefully...]
Data attributes override method attributes with the same name; to
...
...
Doc/whatsnew/whatsnew24.tex
View file @
d4462300
...
...
@@ -12,7 +12,7 @@
\tableofcontents
This article explains the new features in Python 2.4. No release date
for Python 2.4 has been set; expect that this will happen
in
2004.
for Python 2.4 has been set; expect that this will happen
mid-
2004.
While Python 2.3 was primarily a library development release, Python
2.4 may extend the core language and interpreter in
...
...
@@ -42,6 +42,7 @@ False
set(['a', 'r', 'b', 'c', 'd'])
>>> ''.join(a) # convert back into a string
'arbcd'
>>> b = set('alacazam') # form a second set
>>> a - b # letters in a but not in b
set(['r', 'd', 'b'])
...
...
@@ -51,6 +52,7 @@ set(['a', 'c', 'r', 'd', 'b', 'm', 'z', 'l'])
set(['a', 'c'])
>>> a
^
b # letters in a or b but not both
set(['r', 'd', 'b', 'm', 'z', 'l'])
>>> a.add('z') # add a new element
>>> a.update('wxy') # add multiple new elements
>>> a
...
...
@@ -115,6 +117,11 @@ Here are all of the changes that Python 2.4 makes to the core Python
language.
\begin{itemize}
\item
The string methods,
\method
{
ljust()
}
,
\method
{
rjust()
}
, and
\method
{
center()
}
now take a optional argument for specifying a
fill character other than a space.
\item
The
\method
{
sort()
}
method of lists gained three keyword
arguments,
\var
{
cmp
}
,
\var
{
key
}
, and
\var
{
reverse
}
. These arguments
make some common usages of
\method
{
sort()
}
simpler. All are optional.
...
...
@@ -185,10 +192,12 @@ use in expressions. The differences are:
[11, 12, 13, 14, 15, 16, 17, 18, 19]
>>> L = [9,7,8,3,2,4,1,6,5] # original is left unchanged
[9,7,8,3,2,4,1,6,5]
>>> list.sorted('Monte Python') # any iterable may be an input
[' ', 'M', 'P', 'e', 'h', 'n', 'n', 'o', 'o', 't', 't', 'y']
>>> # List the contents of a dict sorted by key values
>>> colormap = dict(red=1, blue=2, green=3, black=4, yellow=5)
>>> # Lists the contents of the dict sorted by key values
>>> for k, v in list.sorted(colormap.iteritems()):
... print k, v
...
...
...
@@ -202,7 +211,7 @@ yellow 5
\item
The
\function
{
zip()
}
built-in function and
\function
{
itertools.izip()
}
now return an empty list instead of raising a
\exception
{
TypeError
}
now return
s
an empty list instead of raising a
\exception
{
TypeError
}
exception if called with no arguments. This makes the functions more
suitable for use with variable length argument lists:
...
...
@@ -297,6 +306,12 @@ Changes to Python's build process and to the C API include:
objN)
}
, constructs tuples from a variable length argument list of
Python objects.
\item
A new function,
\function
{
PyDict
_
Contains(d, k)
}
, implements
fast dictionary lookups without masking exceptions raised during
the loop-up process (compare with
\function
{
PySequence
_
Contains()
}
which is slower or
\function
{
PyMapping
_
HasKey()
}
which clears all
exceptions).
\end{itemize}
...
...
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