003720235b
Massive fiddling to reflect that datetimetz and timetz no longer exist.
...
WARNING: It would be a minor miracle if the LaTeX stuff still worked.
s/field/member/ generally everywhere, to conform with most other usage in
the docs.
s/daylight savings time/daylight saving time/ generally everywhere,
because the latter spelling is anally correct.
2003-01-09 04:10:05 +00:00
326c72a839
Add notes about the linuxaudiodev and ossaudiodev modules.
2003-01-08 07:21:53 +00:00
19b6f60f5c
There's no such method as has_option() -- should be has_extn().
2003-01-08 03:04:42 +00:00
b6604b3e69
Document EX_OK and friends.
2003-01-07 22:43:25 +00:00
051314f924
SF #664011 , move tarfile module in docs
2003-01-07 22:36:04 +00:00
8ef3d8d5d1
Fix spelling.
2003-01-06 18:41:01 +00:00
488609e43a
SF #642236 , optparse LaTeX docs by Johannes Gijsbers
2003-01-06 16:51:37 +00:00
11f89b75e1
Strike any hint that from-import-* could ever be reasonable; it's a
...
vile abomination and should be eradicated!
2003-01-06 16:38:10 +00:00
2e3ae21060
Fix some nits Guido brought up last August:
...
- give subsection pages nicer names
- shorten some really long table cells; table cells can't wrap in the
typeset version of the documentation
2003-01-06 15:50:32 +00:00
2b0a3d33f8
Fix markup so this will format again.
2003-01-06 15:03:11 +00:00
9f5b07dd92
SF bug #592859 : os.chmod is underdocumented
...
Document constants for permission bits.
2003-01-06 13:31:26 +00:00
b9ef4aea5e
SF #651082 , tarfile module implementation from Lars Gustäbel
2003-01-05 23:19:43 +00:00
6d23b170cf
Fix a typo
2003-01-05 22:20:51 +00:00
75a6e3bd1a
datetime_from_timet_and_us(): ignore leap seconds if the platform
...
localtime()/gmtime() insists on delivering them, + associated doc
changes.
Redid the docs for datetimtez.astimezone().
2003-01-04 18:17:36 +00:00
adf642038e
A new implementation of astimezone() that does what we agreed on in all
...
cases, plus even tougher tests of that. This implementation follows
the correctness proof very closely, and should also be quicker (yes,
I wrote the proof before the code, and the code proves the proof <wink>).
2003-01-04 06:03:15 +00:00
69bf8f3f4e
SF bug #655271 : Slightly modify locals() doc
...
Clarify the operation of locals().
2003-01-04 02:16:22 +00:00
2ca243368f
SF bug #651149 : Review libshelve.tex when possible
...
Minor fixes to markup, spelling, parameter names, and abbreviations.
2003-01-04 01:53:38 +00:00
8827d0c338
Replaced the flawed "local time" example tzinfo class with the guts
...
of Guido's later Local.py (from the datetime sandbox).
2003-01-03 22:26:57 +00:00
397301eccb
The tzinfo methods utcoffset() and dst() must return a timedelta object
...
(or None) now. In 2.3a1 they could also return an int or long, but that
was an unhelpfully redundant leftover from an earlier version wherein
they couldn't return a timedelta. TOOWTDI.
2003-01-02 21:28:08 +00:00
4abd5f0fce
Allow list sort's comparison function to explicitly be None. See SF patch
...
661092.
2003-01-02 20:51:08 +00:00
710fb1548a
astimezone() internals: if utcoffset() returns a duration, complain if
...
dst() returns None (instead of treating that as 0).
2003-01-02 19:35:54 +00:00
e149798c7f
Add some version info for new methods and class
2003-01-02 15:32:00 +00:00
74bcac4cae
- documented Ellipsis, NotImplemented
...
- minor markup changes
- indented for consistency with newer content
2003-01-02 05:13:51 +00:00
45e482fd3d
Document that apply() is deprecated. See:
...
http://mail.python.org/pipermail/python-dev/2003-January/031556.html
2003-01-02 04:54:04 +00:00
f36151556f
A quicker astimezone() implementation, rehabilitating an earlier
...
suggestion from Guido, along with a formal correctness proof of the
trickiest bit. The intricacy of the proof reveals how delicate this
is, but also how robust the conclusion: correctness doesn't rely on
dst() returning +- one hour (not all real time zones do!), it only
relies on:
1. That dst() returns a (any) non-zero value if and only if daylight
time is in effect.
and
2. That the tzinfo subclass implements a consistent notion of time zone.
The meaning of "consistent" was a hidden assumption, which is now an
explicit requirement in the docs. Alas, it's an unverifiable (by the
datetime implementation) requirement, but so it goes.
2003-01-01 21:51:37 +00:00
0233bd9c7d
mention built-in constants.
2003-01-01 20:37:14 +00:00
1f041e7aa8
process libconsts.tex
2003-01-01 20:34:00 +00:00
17804b1df4
new section - builtin constants
2003-01-01 20:33:38 +00:00
0f8e543159
- use classdesc where we can (for better indexing)
...
- more style consistency crud
2002-12-31 18:31:48 +00:00
436eadd455
General style conformance. Markup some unmarked constructs.
2002-12-31 18:13:11 +00:00
f621232c0d
Use funcdesc instead of classdesc to be consistent with out sections.
2002-12-31 17:24:50 +00:00
e2c649126e
Further cleanup of exceptions. All interpolation-related exceptions
...
now derive from InterpolationError, which is not raised directly (only
subclasses get raised). This matches what the docs already said.
2002-12-31 17:23:27 +00:00
6222958500
Spelling fix
2002-12-31 16:37:03 +00:00
cbd6cd2312
Add markup for time object.
...
Cleanup whitespace.
Fix unbalanced parenthesis.
2002-12-31 16:30:49 +00:00
9532298c82
Removed the now-untrue (or soon-to-be untrue) part of the astimezone()
...
docs. Replaced it with an XXX block, because the hoped-for treatment
of DST endcases remains unclear (Guido doesn't really like raising an
exception when it's impossible to deliver a correct result, but so
far I have no way in hand to consistently deliver a defined incorrect
result either).
2002-12-31 16:01:47 +00:00
2852cbaf26
Document the new ,netrc awareness in nntplib.
2002-12-31 15:28:44 +00:00
f91b4619e0
Barry raised reasonable objections to the macro name \mimeheader, so
...
we'll simply revert to \mailheader since there's no other good name.
2002-12-31 15:23:09 +00:00
f14730a49a
- correct the deprecation markups so this formats again
...
- some minor cleanups
2002-12-31 15:10:49 +00:00
c5f5f87f74
Complete the markup for timedelta objects.
...
Fix a curly brace that should have been a paren.
2002-12-31 14:26:54 +00:00
f3edea5b90
Use the name (path) specified in the parameter list
2002-12-31 13:38:28 +00:00
96a60e4af5
Patch #658927 : Add getctime to os.path.
...
Document that getatime and getmtime may return floats.
2002-12-31 13:11:54 +00:00
5c37a7717d
Document standard encodings.
2002-12-31 12:39:07 +00:00
ee711092eb
SmartCookie and SerialCookie were recently deprecated
2002-12-31 12:27:11 +00:00
99448e5214
InterpolationSyntaxError was added in 2.3
2002-12-31 12:23:10 +00:00
2714706188
Phrase repair.
2002-12-31 04:41:38 +00:00
8e7ec7cec8
Minor markup and spelling repair.
2002-12-31 04:39:05 +00:00
81e4aa7054
- re-mark ESR's warning about extended registry syntax
...
- document InterpolationSyntaxError
2002-12-30 23:50:19 +00:00
740f80029c
- fix use of \refmodule markup
...
- correct some module names, add hyperlinks
- wrap some long lines
2002-12-30 23:00:36 +00:00
2969233f9a
Add dummy_thread[ing] sections and reference these from libthread[ing].
2002-12-30 22:34:10 +00:00
ad50ca91a9
Brett Cannon's dummy_thread and dummy_threading modules (SF patch
...
622537), with some nitpicking editorial changes.
2002-12-30 22:30:22 +00:00
a37e5cce4b
We're using strictly American spellings, so there's no diaresis over
...
the i in naive.
More markup fixups.
2002-12-30 21:26:42 +00:00
bad8ff089a
A step on the way to making tzinfo classes writable by mortals: get rid
...
of the timetz case. A tzinfo method will always see a datetimetz arg,
or None, now. In the former case, it's still possible that it will get
a datetimetz argument belonging to a different timezone. That will get
fixed next.
2002-12-30 20:52:32 +00:00
9bdeee492a
Clean up a table so it passes formatting.
2002-12-30 20:35:32 +00:00
0de926fd12
Added the \var{} markup so the tables will look good.
2002-12-30 20:21:21 +00:00
6005a344ce
Added markup upto line 233.
2002-12-30 20:01:24 +00:00
d1adc8a6af
Describe the new `errors' argument to Header.__init__() and
...
Header.append()
2002-12-30 19:17:37 +00:00
fa91858c6c
More markup additions
2002-12-30 14:20:16 +00:00
d6d7cfaada
Minor grammar fix, and clarification
2002-12-30 03:08:27 +00:00
c97868ee2f
Mark up more text
2002-12-30 03:06:45 +00:00
40f6217092
SF patch 658251: Install a C implementation of the Mersenne Twister as the
...
core generator for random.py.
2002-12-29 23:03:38 +00:00
c7b076928c
Incorporate Skip's suggestion to use SciPy's validation test near
...
equality. Note, there is another flavor that compares to a given
number of significant digits rather than decimal places. If there
is a demand, that could be added at a later date.
2002-12-29 17:59:24 +00:00
f8bcfb13f1
SF Bug 645777: list.extend() works with any iterable and is no longer
...
experimental.
2002-12-29 05:49:09 +00:00
276a8f3b80
astimezone(): document that None is an OK argument.
2002-12-27 21:41:32 +00:00
56b3184e89
Added a useful warning to the documentation.
2002-12-27 20:05:36 +00:00
33e94437ca
Document killpg.
2002-12-27 10:21:19 +00:00
438b534ad0
Patch #657889 : Implement posix.getloadavg.
2002-12-27 10:16:42 +00:00
60c76e4016
Make comparison and subtraction of aware objects ignore tzinfo if the
...
operands have identical tzinfo members (meaning object identity -- "is").
I misunderstood the intent here, reading wrong conclusion into
conflicting clues.
2002-12-27 00:41:11 +00:00
8982595870
Backing out patch #642578 in anticipation of final acceptance of PEP 302.
2002-12-25 23:13:34 +00:00
e11b510a5b
SF 658405: calendar.py to rely on the datetime module instead of the time
...
module.
The code is shorter, more readable, faster, and dramatically increases the
range of acceptable dates.
Also, used the floor division operator in leapdays().
2002-12-25 16:37:19 +00:00
80475bb4d2
Implemented datetime.astimezone() and datetimetz.astimezone().
2002-12-25 07:40:55 +00:00
52d134874f
Removed blurb admonishing users to raise an exception if the datetime
...
argument to a tzinfo method doesn't have a matching tzinfo member.
2002-12-24 16:34:13 +00:00
2483b61e03
Added note about technical pickle limitation on tzinfo instances.
2002-12-24 16:30:58 +00:00
1cff9fc97c
tzinfo.{utcoffset,dst} can return timedelta (or integer or None).
...
{timetz,datetimetz}.{uctcoffset,dst} do return timedelta (or None).
2002-12-24 16:25:29 +00:00
12bf339aea
Implemented .replace() methods for date, datetime, datetimetz, time and
...
timetz.
2002-12-24 05:41:27 +00:00
29fb9c7e07
Brought the strftime explanation into synch with the plain-text sandbox
...
docs, and moved its section to the end (before the "C API" section,
which latter doesn't really belong in the Library manual).
2002-12-23 22:21:52 +00:00
446f32367b
Add in the datetime docs now that they pass LaTeX. Still ugly, but that can
...
be fixed.
2002-12-23 19:03:00 +00:00
bbdb250862
Lots of markup changes. This is still pretty sad, but passes LaTeX
...
and is mostly readable.
2002-12-23 18:58:06 +00:00
ce5200842e
Move the examples of concrete tzinfo classes to a separate file, so the
...
verbatim environment does not bollux page breaking.
2002-12-23 18:52:19 +00:00
4a80a3ec21
Added docs for (draft) pkgutil module.
2002-12-23 16:53:59 +00:00
8ed8320827
Fixed longstanding bug in the description of strftime's %W code.
2002-12-20 17:15:39 +00:00
ca2623a2f9
Check in current, unfinished, draft of datetime docs
...
(Fred, don't bother to add to lib.tex or to proofread this yet.)
2002-12-18 14:59:11 +00:00
e0f02f0826
Fix some small markup nits.
2002-12-18 02:07:14 +00:00
3e93b4d222
Fix typo spotted by Richie Hindle
2002-12-18 01:20:29 +00:00
cfd3884882
This is Richie Hindle's patch
...
[ 643835 ] Set Next Statement for Python debuggers
with a few tweaks by me: adding an unsigned or two, mentioning that
not all jumps are allowed in the doc for pdb, adding a NEWS item and
a note to whatsnew, and AuCTeX doing something cosmetic to libpdb.tex.
2002-12-17 16:15:34 +00:00
212b43f90c
Add markup for base parameter
2002-12-17 01:24:11 +00:00
046b8a7244
Fix SF # 641111, Undocumented side effect of eval
...
Try to clear up confusion about the current globals being copied
into a globals dict passed to eval(). This wording (more or less)
was suggested in bug report. It should probably be made clearer.
Backport candidate.
2002-12-17 01:08:06 +00:00
e9ce25e512
Fix SF #642742 , property() builtin not documented
...
Added doc for functions new to 2.2: classmethod property staticmethod super
Taken from docstrings. Could use review.
Hope there wasn't a reason why these shouldn't have been added.
Backport candidate.
2002-12-17 01:02:57 +00:00
786ddb29c9
Fixed bug
...
[#521782 ] unreliable file.read() error handling
* Objects/fileobject.c
(file_read): Clear errors before leaving the loop in all situations,
and also check if some data was read before exiting the loop with an
EWOULDBLOCK exception.
* Doc/lib/libstdtypes.tex
* Objects/fileobject.c
Document that sometimes a read() operation can return less data than
what the user asked, if running in non-blocking mode.
* Misc/NEWS
Document the fix.
2002-12-16 18:12:53 +00:00
edd179ee77
typo fix.
2002-12-15 13:14:22 +00:00
866964c3a3
Apply SF patch 652930: Add optional base argument to math.log(x[, base]).
2002-12-14 19:51:34 +00:00
d9a6ad3beb
Enhance issubclass() and PyObject_IsSubclass() so that a tuple is
...
supported as the second argument. This has the same meaning as
for isinstance(), i.e. issubclass(X, (A, B)) is equivalent
to issubclass(X, A) or issubclass(X, B). Compared to isinstance(),
this patch does not search the tuple recursively for classes, i.e.
any entry in the tuple that is not a class, will result in a
TypeError.
This closes SF patch #649608 .
2002-12-12 16:41:44 +00:00
b083cb3901
Patch #651621 , approved by MvL.
...
This patch allows ZipFile.writestr() to be called with
an archive file name instead of a ZipInfo instance:
z = ZipFile("myarchive.zip", "w")
z.writestr("foo/baz/file.ext", data)
z.close()
I found the old writestr() method very inconvenient
for simple (but common) things.
If called with a file name instead of a ZipInfo
instance, the date_time is set to the current date/time,
which makes sense to me for anonymous data.
2002-12-12 12:23:32 +00:00
0479104a91
Patch #651006 : Better explain what component might be empty.
2002-12-11 12:55:53 +00:00
d2bef8256b
Update comments about the performance of xrange().
2002-12-11 07:14:03 +00:00
3bf99e3e87
Add support for binary pickles to the shelve module. In some situations
...
this can result in significantly smaller files. All classes as well as the
open function now accept an optional binary parameter, which defaults to
False for backward compatibility. Added a small test suite, updated the
libref documentation (including documenting the exported classes and fixing
a few other nits) and added a note about the change to Misc/NEWS.
2002-12-08 18:36:24 +00:00
edb635ff5c
Remove extra ")" in example.
2002-12-06 18:52:28 +00:00
08d10f985e
Typo: "dead lock" --> "deadlock"
2002-12-06 16:45:05 +00:00
a41b2bb981
Fix problem in example code. It's minor in this particular example,
...
but can lead to mysterious problems in real applications.
2002-12-03 22:57:37 +00:00
7af24bd237
Fix example regular expressions that simulate scanf() constructs.
2002-12-03 18:49:17 +00:00
71aa6d6db9
Patch #646824 : Remove extra \end.
2002-12-03 18:09:02 +00:00
3eb166b49b
Slightly improved version of patch #642578 : "Expose PyImport_FrozenModules
...
in imp". This adds two functions to the imp module: get_frozenmodules()
and set_frozenmodules().
2002-11-29 20:47:40 +00:00
e33d3df030
SF Patch 643443. Added dict.fromkeys(iterable, value=None), a class
...
method for constructing new dictionaries from sequences of keys.
2002-11-27 07:29:33 +00:00
e9cfcef71e
Clarify the interpretation of the __getstate__() return value for
...
new-style classes.
Closes SF bug #637941 .
2002-11-27 05:26:46 +00:00
057ab14e7d
* libbz2.tex
...
Fixed minor typo, suggested by Drew Perttula <drewp@bigasterisk.com>.
2002-11-25 18:51:43 +00:00
15353f5c64
Remove extra word
2002-11-25 16:01:08 +00:00
b5c980b802
Add unidata_version. Bump generator version number.
2002-11-25 09:13:37 +00:00
677bde2dd1
Patch #626485 : Support Unicode normalization.
2002-11-23 22:08:15 +00:00
6e596b6895
Added change note about returning a dictionary based on keyword
...
arguments.
2002-11-23 15:02:13 +00:00
a797d8150d
Patch #642500 with slight modifications: allow keyword arguments in
...
dict() constructor. Example:
>>> dict(a=1, b=2)
{'a': 1, 'b': 2}
>>>
2002-11-23 09:45:04 +00:00
a191befb2d
Clarify the default setting for daemon_threads.
2002-11-22 14:29:42 +00:00
74f5a56c2c
Fix markup.
2002-11-22 14:28:53 +00:00
4581cfa326
Patch #486438 : Make module argument to testmod optional.
2002-11-22 08:23:09 +00:00
f86e8ef33e
Patch #550765 : Add daemon_threads flag.
2002-11-22 08:08:44 +00:00
d3c821ee71
added details of new IMAP4_stream class; emphasised meaning of data part of command results; added proxyauth command description
2002-11-22 05:47:39 +00:00
d899605e30
Patch #633547 : Support plural forms. Do TODOs in test suite.
2002-11-21 21:45:32 +00:00
3350b5bfd9
NamedTemporaryFile: clarify behavior based on confusions noted by a
...
user, and spell out a x-platform use limitation.
2002-11-21 16:32:11 +00:00
72f861657a
Document additional error handling names available through PEP 293.
2002-11-19 21:51:35 +00:00
f171540ab8
Change int() so that passing a string, unicode, float or long argument
...
that is outside the integer range no longer raises OverflowError, but
returns a long object instead.
This fixes SF bug http://www.python.org/sf/635115
2002-11-19 20:49:15 +00:00
311f419628
Improve comments. Clarify docs.
...
Replace "type(0)" with "int".
Replace "while 1" with "while True"
2002-11-18 09:01:24 +00:00
8ddc176e2e
Improve DictMixin.
...
Replaced docstring with comments. Prevents subclass contamination.
Added the missing __cmp__() method and a test for __cmp__().
Used try/except style in preference to has_key() followed by a look-up.
Used iteritem() where possible to save creating a long key list and
to save redundant lookups.
Expanded .update() to look for the most helpful methods first and gradually
work down to a mininum expected interface.
Expanded documentation to be more clear on how to use the class.
2002-11-18 04:34:10 +00:00
6141812820
correct typo detected by Lee Hansen
2002-11-17 11:09:50 +00:00
e55bec2566
Better note that str.zfill() was added in 2.2.2 as well. ;-(
2002-11-16 00:44:00 +00:00
9171801de9
Document that a minor feature was added in 2.2.2. ;-(
...
Closes SF bug #639170 .
2002-11-16 00:41:55 +00:00
5654cc215a
SF 639138, Ref. calendar module in time docs by John J Lee
...
Will backport.
2002-11-15 23:00:30 +00:00
c734b01759
Fix critical markup errors.
2002-11-15 18:49:57 +00:00
3a2cda876b
Minor revisions to clarify the status of xreadlines(), change the way
...
iteration support was documented; the docs for __iter__() were just
confusing.
2002-11-15 16:38:06 +00:00
7994716b6b
SF patch #520382 : Expand shelve.py to have a full dictionary interface
...
and add a mixin to UserDict.py to make it easier to implement a full
dictionary interface.
2002-11-15 06:46:14 +00:00
4ebe2e3914
add liblogging
2002-11-14 03:58:20 +00:00
649698f72e
initial rough cut at documentation of logging module. This is basically
...
just a conversion of pydoc.help(logging).
2002-11-14 03:57:19 +00:00
bad460790e
Document struct_time and the field names.
2002-11-13 19:05:01 +00:00
a5a173efbf
Fix broken markup.
...
Closes SF bug #637807 .
2002-11-13 17:48:15 +00:00
2c184e7eea
Typo: it's --> its
...
Closes SF bug #637810 .
2002-11-13 15:56:13 +00:00
3d03968c75
Clarified meaning of \w and \W with respect to the UNICODE and LOCALE flags.
...
Closes SF bug #635595 .
2002-11-12 23:12:54 +00:00
b9099c3df4
SF patch 637176: list.sort crasher
...
Armin Rigo's Draconian but effective fix for
SF bug 453523: list.sort crasher
slightly fiddled to catch more cases of list mutation. The dreaded
internal "immutable list type" is gone! OTOH, if you look at a list
*while* it's being sorted now, it will appear to be empty. Better
than a core dump.
2002-11-12 22:08:10 +00:00
4b9ed2f346
Clarified documentation of tempnam().
...
Closes SF bug #635656 .
2002-11-12 22:07:11 +00:00
f24eb35d18
SF patch 629637: Add sample(population, k) method to the random module.
...
Used for random sampling without replacement.
2002-11-12 17:41:57 +00:00
430b1563dd
Add documentation for the PEP 293 functionality:
...
The errors attribute can be changed after the reader/writer
is created.
For encoding there are two additional errors values:
"xmlcharrefreplace" and "backslashreplace".
These values can be extended via register_error().
2002-11-07 22:33:17 +00:00
b5f41dedeb
Minor markup adjustments.
2002-11-07 17:13:03 +00:00
5b470e0a3a
Document the changed fdopen behaviour.
...
(Hope the markup is ok).
2002-11-07 16:33:44 +00:00
e3fb22bd4a
[Patch #633635 from David M. Cooke]
...
Make docs accurate; getch() in nodelay mode returns -1
2002-11-06 14:17:21 +00:00
110aa50cc2
Fix minor wording and 2 typos
2002-11-05 23:55:27 +00:00
fad265e651
Whoops, fix the typo correctly this time
2002-11-05 22:46:39 +00:00
75f36b7040
Document the new `pp' command.
2002-11-05 22:41:16 +00:00
c2f7757ef5
Fix minor typos
2002-11-05 22:37:58 +00:00
a288a234ec
Document that images go away when they go away. Fixes #632323 .
2002-11-05 22:11:50 +00:00
18c7d98bd1
Fix a few minor nits. Still need to actually proofread this.
2002-11-05 17:54:02 +00:00
f8ca8364c9
Patch implementing bz2 module.
...
* setup.py
(PyBuildExt.detect_modules): Included bz2 module detection.
* Modules/bz2module.c
* Lib/test/test_bz2.py
* Doc/lib/libbz2.tex
Included files implementing, testing, and documenting bz2 module.
* Doc/Makefile.deps
* Doc/lib/lib.tex
Include references to libbz2.tex.
* Misc/NEWS
(Library): Mention distutils' c++ linkage patch, and new bz2 module.
2002-11-05 16:50:05 +00:00
22610da481
Document symbolic constants for commands.
2002-11-04 17:41:18 +00:00
1da9c57c74
Patch #630829 : Don't block on IAC, process suboptions.
2002-11-04 09:56:00 +00:00
f0a4668e6f
Add getpreferredencoding. Support @euro modifiers. Fixes #554676 .
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The @euro part is backported to 2.2.3.
2002-11-03 17:20:12 +00:00
Tim Peters
Fred Drake
Greg Ward
Barry Warsaw
Neal Norwitz
Raymond Hettinger
Skip Montanaro
Eric S. Raymond
Martin v. Löwis
Guido van Rossum
Andrew M. Kuchling
Just van Rossum
Michael W. Hudson
Gustavo Niemeyer
Walter Dörwald
Piers Lauder
Thomas Heller