[ python-Bugs-1417699 ] float/atof have become locale aware
Bugs item #1417699, was opened at 2006-01-29 01:04
Message generated for change (Comment added) made by gustavo
You can respond by visiting:
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1417699&group_id=5470
Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: Python Library
Group: Python 2.4
Status: Open
Resolution: None
Priority: 7
Submitted By: Bernhard Herzog (bernhard)
Assigned to: Nobody/Anonymous (nobody)
Summary: float/atof have become locale aware
Initial Comment:
The builtin float and the function string.atof have
become locale aware in Python 2.4:
Python 2.4.2 (#1, Nov 29 2005, 16:07:55)
[GCC 2.95.4 20011002 (Debian prerelease)] on linux2
Type "help", "copyright", "credits" or "license" for
more information.
>>> import locale
>>> import string
>>> locale.setlocale(locale.LC_ALL, "de_DE")
'de_DE'
>>> float("1,5")
1.5
>>> string.atof("1,5")
1.5
This doesn't match what's specified in pep 331:
- float() and str() stay locale-unaware.
It also doesn't match the documentation for atof:
Convert a string to a floating point number.
The string must have the standard syntax for a
floating point literal in Python, optionally
preceded by a sign ("+" or "-"). Note that this
behaves identical to the built-in function float()
when passed a string.
The documentation for float() doesn't state which
format is accepted by float(), though.
The reason for this behavior is ultimately, that
PyOS_ascii_strtod accepts the locale specific
convention in addition to the "C"-locale/python
convention, even though the comment in the code
preceding its definition states:
This function behaves like the standard strtod()
function does in the C locale.
--
Comment By: Gustavo J. A. M. Carneiro (gustavo)
Date: 2006-05-13 12:59
Message:
Logged In: YES
user_id=908
I'm quite busy at this moment, but I'll send a patch soon,
promise.
--
Comment By: Martin v. Löwis (loewis)
Date: 2006-05-12 15:14
Message:
Logged In: YES
user_id=21627
Unassigning myself - I don't plan to work on this anytime soon.
--
Comment By: Georg Brandl (gbrandl)
Date: 2006-05-08 19:00
Message:
Logged In: YES
user_id=849994
I grepped around and found PyOS_ascii_strtod in the
following places:
* stropmodule::atof
* cPickle::load_float (the writing of locale dependent
floats was fixed recently)
* floatobject::PyFloat_FromString
* complexobject::complex_subtype_from_string
In my opinion, all these should not tolerate localized
floats, so Gustavo, please ask the original author how to
achieve this.
--
Comment By: Gustavo J. A. M. Carneiro (gustavo)
Date: 2006-05-04 10:47
Message:
Logged In: YES
user_id=908
My comment is, is "PyOS_ascii_strtod accepting both forms"
something that is harmful and should be fixed?
I didn't exactly write the PyOS_ascii_strtod code; I only
integrated it with Python. But if we really need to fix
this, I'll try to figure out how to make it not accept
floating points in locale aware format; if necessary I'll
ask help from the original author of the code, Alexander
Larsson.
--
Comment By: Martin v. Löwis (loewis)
Date: 2006-05-04 05:42
Message:
Logged In: YES
user_id=21627
It's a bug. As bernhard says, it originates from
PyOS_ascii_strtod accepting both forms, which in turn
happens because it just leaves the locale-specific decimal
point in the string, only replacing the . with the
locale-specific point. Then, the platform's strtod will
happily accept the locale-specific version.
I'd like Gustavo Carneiro to comment.
--
Comment By: Georg Brandl (birkenfeld)
Date: 2006-02-17 12:19
Message:
Logged In: YES
user_id=1188172
Martin, you checked in the patch which is mentioned in PEP
331. Is this correct behavior?
--
You can respond by visiting:
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1417699&group_id=5470
___
Python-bugs-list mailing list
Unsubscribe:
http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[ python-Feature Requests-1487389 ] datetime.time and datetime.timedelta
Feature Requests item #1487389, was opened at 2006-05-12 13:13 Message generated for change (Comment added) made by fresh You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=355470&aid=1487389&group_id=5470 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Python Library Group: None Status: Open Resolution: None Priority: 5 Submitted By: Chris Withers (fresh) Assigned to: Nobody/Anonymous (nobody) Summary: datetime.time and datetime.timedelta Initial Comment: print datetime.time(hour=0)+datetime.timedelta(hours=1) ...gives... TypeError: unsupported operand type(s) for +: 'datetime.time' and 'datetime.timedelta' Which is a bit frustrating :-/ Does it really need to be this way? Chris -- >Comment By: Chris Withers (fresh) Date: 2006-05-13 15:49 Message: Logged In: YES user_id=24723 Well, I think the OverflowError is perfectly correct, and lets the software author handle that situation in any way they want. That said, you could add a keyword option to the datetime.time constructor to allow it either to wrap round, or raise OverflowError, with the overflow being the default. If I resulted up patches for these, how would I get them into a python release? -- Comment By: Tim Peters (tim_one) Date: 2006-05-12 16:15 Message: Logged In: YES user_id=31435 Since the lack of arithmetic on `time` objects is both intended and documented, this isn't "a bug". I moved this to the Feature Requests tracker. The problem with arithmetic on time objects is that it's not obvious what to do in case of overflow or underflow: wrap around or raise OverflowError? Either way violates _some_ reasonable expectation. Embed your time in a `datetime` object and then you can decide what you want to do. For example, if you want to wrap around, >>> print (datetime.combine(date.today(), time(hour=0)) - timedelta(hours=1)).time() 23:00:00 -- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=355470&aid=1487389&group_id=5470 ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[ python-Bugs-944394 ] No examples or usage docs for urllib2
Bugs item #944394, was opened at 2004-04-29 11:02 Message generated for change (Settings changed) made by fresh You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=944394&group_id=5470 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Python Library Group: None >Status: Open Resolution: None Priority: 5 Submitted By: Chris Withers (fresh) Assigned to: Nobody/Anonymous (nobody) Summary: No examples or usage docs for urllib2 Initial Comment: Hi there, I'm sure I reported this before, but it's a couple of major releases later, and there's still no usage docs for urllib2. The examples given are too trivial to be helpful, but I'm guessing people are using the module so there must be some examples out there somewhere ;-) With a bit o fhelp from Moshez, I found the docstring in the module source. At the very least, it'd be handy if that appeared somewhere at: http://docs.python.org/lib/module-urllib2.html But really, mroe extensive and helpful documentation on this cool new module would be very handy. Chris -- >Comment By: Chris Withers (fresh) Date: 2006-05-13 15:51 Message: Logged In: YES user_id=24723 wtf? -- Comment By: SourceForge Robot (sf-robot) Date: 2006-05-12 02:21 Message: Logged In: YES user_id=1312539 This Tracker item was closed automatically by the system. It was previously set to a Pending status, and the original submitter did not respond within 14 days (the time period specified by the administrator of this Tracker). -- Comment By: Georg Brandl (gbrandl) Date: 2006-04-27 13:06 Message: Logged In: YES user_id=849994 Chris, I concur with jjlee that suggesting examples is the best way to get something done. Perhaps, if you're using urllib2, you could flesh out some examples from your code? -- Comment By: John J Lee (jjlee) Date: 2006-04-17 14:26 Message: Logged In: YES user_id=261020 Do you have any specific suggestions for what is unhelpful and/or missing? Otherwise, nothing is likely to change. Note that a little was added at the bottom of this page in 2.4, explaining how OpenerDirector uses the handlers to open URLs: http://docs.python.org/lib/opener-director-objects.html Looking at the top-level page, I guess an introduction / overview would help? Did you have other stuff in mind too? -- Comment By: Chris Withers (fresh) Date: 2006-04-17 14:19 Message: Logged In: YES user_id=24723 I still feel there could be more. I guess the best course, for me, would be to leave this open but at a really low priority. However, I probably wouldn't scream too much if the issue was closed. -- Comment By: John J Lee (jjlee) Date: 2006-04-15 18:49 Message: Logged In: YES user_id=261020 They are here: http://docs.python.org/lib/urllib2-examples.html -- Comment By: Chris Withers (fresh) Date: 2006-04-15 18:07 Message: Logged In: YES user_id=24723 Where are these examples you're referring to? I don't see any at: http://docs.python.org/lib/module-urllib2.html I've already commented that the existing ones in the docstring would be a start but still don't really much help in taking full advantage of this module. -- Comment By: John J Lee (jjlee) Date: 2006-04-15 17:34 Message: Logged In: YES user_id=261020 Examples for urllib2 were added some time ago, so I suggest this bug is closed. -- Comment By: Chris Withers (fresh) Date: 2004-06-01 08:17 Message: Logged In: YES user_id=24723 I'm certainly willing, but I am totally incapable :-S The reason I opened this issue is because it would seem that urllib2 is better the urllib, but seems to be severely underdocumented, and hence I don't understand how to use it and so can't provide examples. As I said in the original submission, including the module's docstring in the Python module documentation would be a start, but doesn't cover what appears to be the full potential of a great module... -- Comment By: Martin v. Löwis (loewis) Date: 2004-05-31 21:15 Message: Logged In: YES user_id=21627 Are you willing to provide examples? -- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=1054
[ python-Bugs-1487966 ] SystemError with conditional expression in assignment
Bugs item #1487966, was opened at 2006-05-13 18:25 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1487966&group_id=5470 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Parser/Compiler Group: Python 2.5 Status: Open Resolution: None Priority: 5 Submitted By: iga Seilnacht (zseil) Assigned to: Nobody/Anonymous (nobody) Summary: SystemError with conditional expression in assignment Initial Comment: When a conditional expression appears on the left side of an assignment, SystemError is raised instead of SyntaxError. Example: Python 2.5a2 (trunk:45989M, May 13 2006, 15:40:42) [MSC v.1310 32 bit (Intel)] on win32 >>> a if True else b = 3 SystemError: unexpected expression in assignment 5 (line 1) -- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1487966&group_id=5470 ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[ python-Bugs-944394 ] No examples or usage docs for urllib2
Bugs item #944394, was opened at 2004-04-29 13:02 Message generated for change (Comment added) made by loewis You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=944394&group_id=5470 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Python Library Group: None >Status: Closed >Resolution: Works For Me Priority: 5 Submitted By: Chris Withers (fresh) Assigned to: Nobody/Anonymous (nobody) Summary: No examples or usage docs for urllib2 Initial Comment: Hi there, I'm sure I reported this before, but it's a couple of major releases later, and there's still no usage docs for urllib2. The examples given are too trivial to be helpful, but I'm guessing people are using the module so there must be some examples out there somewhere ;-) With a bit o fhelp from Moshez, I found the docstring in the module source. At the very least, it'd be handy if that appeared somewhere at: http://docs.python.org/lib/module-urllib2.html But really, mroe extensive and helpful documentation on this cool new module would be very handy. Chris -- >Comment By: Martin v. Löwis (loewis) Date: 2006-05-13 18:33 Message: Logged In: YES user_id=21627 fresh, you haven't responded to jjlee's questions from 2006-04-17 16:26, so it is unclear what precisely it is that you want. In absence of a specific problem description, I'm closing this as "works for me". -- Comment By: Chris Withers (fresh) Date: 2006-05-13 17:51 Message: Logged In: YES user_id=24723 wtf? -- Comment By: SourceForge Robot (sf-robot) Date: 2006-05-12 04:21 Message: Logged In: YES user_id=1312539 This Tracker item was closed automatically by the system. It was previously set to a Pending status, and the original submitter did not respond within 14 days (the time period specified by the administrator of this Tracker). -- Comment By: Georg Brandl (gbrandl) Date: 2006-04-27 15:06 Message: Logged In: YES user_id=849994 Chris, I concur with jjlee that suggesting examples is the best way to get something done. Perhaps, if you're using urllib2, you could flesh out some examples from your code? -- Comment By: John J Lee (jjlee) Date: 2006-04-17 16:26 Message: Logged In: YES user_id=261020 Do you have any specific suggestions for what is unhelpful and/or missing? Otherwise, nothing is likely to change. Note that a little was added at the bottom of this page in 2.4, explaining how OpenerDirector uses the handlers to open URLs: http://docs.python.org/lib/opener-director-objects.html Looking at the top-level page, I guess an introduction / overview would help? Did you have other stuff in mind too? -- Comment By: Chris Withers (fresh) Date: 2006-04-17 16:19 Message: Logged In: YES user_id=24723 I still feel there could be more. I guess the best course, for me, would be to leave this open but at a really low priority. However, I probably wouldn't scream too much if the issue was closed. -- Comment By: John J Lee (jjlee) Date: 2006-04-15 20:49 Message: Logged In: YES user_id=261020 They are here: http://docs.python.org/lib/urllib2-examples.html -- Comment By: Chris Withers (fresh) Date: 2006-04-15 20:07 Message: Logged In: YES user_id=24723 Where are these examples you're referring to? I don't see any at: http://docs.python.org/lib/module-urllib2.html I've already commented that the existing ones in the docstring would be a start but still don't really much help in taking full advantage of this module. -- Comment By: John J Lee (jjlee) Date: 2006-04-15 19:34 Message: Logged In: YES user_id=261020 Examples for urllib2 were added some time ago, so I suggest this bug is closed. -- Comment By: Chris Withers (fresh) Date: 2004-06-01 10:17 Message: Logged In: YES user_id=24723 I'm certainly willing, but I am totally incapable :-S The reason I opened this issue is because it would seem that urllib2 is better the urllib, but seems to be severely underdocumented, and hence I don't understand how to use it and so can't provide examples. As I said in the original submission, including the module's docstring in the Python module documentation would be a start, but doesn't cover what appears to be the full potentia
[ python-Bugs-1487481 ] Could BIND_FIRST be removed on HP-UX?
Bugs item #1487481, was opened at 2006-05-12 17:32 Message generated for change (Comment added) made by loewis You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1487481&group_id=5470 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Python Interpreter Core Group: Python 2.4 Status: Open Resolution: None Priority: 5 Submitted By: Göran Uddeborg (goeran) >Assigned to: Guido van Rossum (gvanrossum) Summary: Could BIND_FIRST be removed on HP-UX? Initial Comment: I'm trying to build Python 2.4.3 on HP-UX 11. I need tkinter, so I have first built Tcl and Tk 8.4.13. During the build, the python interpreter crashes. When running the setup.py script, just after making the _tkinter.sl module, it crashes with a memory fault. I've tried to investigate this, and it seems that malloc and friends gets confused by the dynamic loading. I've filed a support request with HP about this. One observation I made is that this malloc bug seems to be connected with the use of BIND_FIRST in dynload_hpux.c. If I just remove this flag (in two places) it appears as if Python works normally. I'm hesitant if this is a good idea. BIND_FIRST is there as an explicit, non-default, flag. Somebody must have choosen to do so for some reason. What was that reason? And is it still valid? If not, maybe the flag could be removed, and this problem in HP-UX be avoided? -- >Comment By: Martin v. Löwis (loewis) Date: 2006-05-13 18:38 Message: Logged In: YES user_id=21627 BIND_FIRST was added with this commit: r7068 | guido | 1996-12-06 00:15:35 +0100 (Fr, 06 Dez 1996) | 2 lines Geänderte Pfade: M /python/trunk/Python/importdl.c Some extra flags that an HPUX user wants me to add. Guido, do you have any records on which user that was and why he wanted these flags to be added? -- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1487481&group_id=5470 ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[ python-Bugs-944394 ] No examples or usage docs for urllib2
Bugs item #944394, was opened at 2004-04-29 12:02 Message generated for change (Comment added) made by jjlee You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=944394&group_id=5470 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Python Library Group: None Status: Closed Resolution: Works For Me Priority: 5 Submitted By: Chris Withers (fresh) Assigned to: Nobody/Anonymous (nobody) Summary: No examples or usage docs for urllib2 Initial Comment: Hi there, I'm sure I reported this before, but it's a couple of major releases later, and there's still no usage docs for urllib2. The examples given are too trivial to be helpful, but I'm guessing people are using the module so there must be some examples out there somewhere ;-) With a bit o fhelp from Moshez, I found the docstring in the module source. At the very least, it'd be handy if that appeared somewhere at: http://docs.python.org/lib/module-urllib2.html But really, mroe extensive and helpful documentation on this cool new module would be very handy. Chris -- Comment By: John J Lee (jjlee) Date: 2006-05-13 19:09 Message: Logged In: YES user_id=261020 Is this helpful, Chris? http://svn.python.org/view/python/trunk/Doc/howto/urllib2.rst?view=markup -- Comment By: Martin v. Löwis (loewis) Date: 2006-05-13 17:33 Message: Logged In: YES user_id=21627 fresh, you haven't responded to jjlee's questions from 2006-04-17 16:26, so it is unclear what precisely it is that you want. In absence of a specific problem description, I'm closing this as "works for me". -- Comment By: Chris Withers (fresh) Date: 2006-05-13 16:51 Message: Logged In: YES user_id=24723 wtf? -- Comment By: SourceForge Robot (sf-robot) Date: 2006-05-12 03:21 Message: Logged In: YES user_id=1312539 This Tracker item was closed automatically by the system. It was previously set to a Pending status, and the original submitter did not respond within 14 days (the time period specified by the administrator of this Tracker). -- Comment By: Georg Brandl (gbrandl) Date: 2006-04-27 14:06 Message: Logged In: YES user_id=849994 Chris, I concur with jjlee that suggesting examples is the best way to get something done. Perhaps, if you're using urllib2, you could flesh out some examples from your code? -- Comment By: John J Lee (jjlee) Date: 2006-04-17 15:26 Message: Logged In: YES user_id=261020 Do you have any specific suggestions for what is unhelpful and/or missing? Otherwise, nothing is likely to change. Note that a little was added at the bottom of this page in 2.4, explaining how OpenerDirector uses the handlers to open URLs: http://docs.python.org/lib/opener-director-objects.html Looking at the top-level page, I guess an introduction / overview would help? Did you have other stuff in mind too? -- Comment By: Chris Withers (fresh) Date: 2006-04-17 15:19 Message: Logged In: YES user_id=24723 I still feel there could be more. I guess the best course, for me, would be to leave this open but at a really low priority. However, I probably wouldn't scream too much if the issue was closed. -- Comment By: John J Lee (jjlee) Date: 2006-04-15 19:49 Message: Logged In: YES user_id=261020 They are here: http://docs.python.org/lib/urllib2-examples.html -- Comment By: Chris Withers (fresh) Date: 2006-04-15 19:07 Message: Logged In: YES user_id=24723 Where are these examples you're referring to? I don't see any at: http://docs.python.org/lib/module-urllib2.html I've already commented that the existing ones in the docstring would be a start but still don't really much help in taking full advantage of this module. -- Comment By: John J Lee (jjlee) Date: 2006-04-15 18:34 Message: Logged In: YES user_id=261020 Examples for urllib2 were added some time ago, so I suggest this bug is closed. -- Comment By: Chris Withers (fresh) Date: 2004-06-01 09:17 Message: Logged In: YES user_id=24723 I'm certainly willing, but I am totally incapable :-S The reason I opened this issue is because it would seem that urllib2 is better the urllib, but seems to be severely under
[ python-Bugs-1487966 ] SystemError with conditional expression in assignment
Bugs item #1487966, was opened at 2006-05-13 18:25 Message generated for change (Comment added) made by zseil You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1487966&group_id=5470 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Parser/Compiler Group: Python 2.5 Status: Open Resolution: None Priority: 5 Submitted By: iga Seilnacht (zseil) Assigned to: Nobody/Anonymous (nobody) Summary: SystemError with conditional expression in assignment Initial Comment: When a conditional expression appears on the left side of an assignment, SystemError is raised instead of SyntaxError. Example: Python 2.5a2 (trunk:45989M, May 13 2006, 15:40:42) [MSC v.1310 32 bit (Intel)] on win32 >>> a if True else b = 3 SystemError: unexpected expression in assignment 5 (line 1) -- >Comment By: iga Seilnacht (zseil) Date: 2006-05-13 22:50 Message: Logged In: YES user_id=1326842 Attaching a patch. Most of the changes in test_syntax are due to error renumbering. All tests passed with this patch applied. -- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1487966&group_id=5470 ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
