Re: unicode as valid naming symbols
Rustom Mody rustompm...@gmail.com: On Wednesday, April 2, 2014 8:28:02 AM UTC+5:30, Rustom Mody wrote: In scheme, in a named-let, the name chosen was very often 'loop' Umm... I see from your prime number example that there are nested loops in which sometimes you restart the inner and sometimes the outer. So you could not possibly call both of them 'loop' :-). Correct. I could call them inner and outer. After all, the code uses variables like i, c and n. However, it doesn't hurt to use variable/function/loop names that convey meaning. Marko -- https://mail.python.org/mailman/listinfo/python-list
Re: Python to be replaced by the new language called Cookie !
On 2/04/2014 3:42 PM, Chris Angelico wrote: Python 2.8 is supported only on Windows XP 64-bit, and you should upgrade to 32-bit Python That would be Python 1.4 -- https://mail.python.org/mailman/listinfo/python-list
Re: Installing binwalk on Portable Python
On Tuesday, March 18, 2014 2:22:57 AM UTC+4:30, lagu...@mail.com wrote:
Yes, that help.
Installation start, but then failed due to Pre-requisite failure: failed to
find libmagic. Check your installation. Please install the python-magic
module, or download and install it from source:
ftp://ftp.astron.com/pub/file/'
Although libmagic was installed using pip.
- Original Message -
From: Peter Mawhorter
Sent: 03/17/14 11:07 PM
To: laguna-mc
Subject: Re: Installing binwalk on Portable Python
On Mon, Mar 17, 2014 at 1:58 PM, lagu...@mail.com wrote:
I tried: pip install E:\Portable Python
2.7.5.1\binwalk-1.3.0\src\setup.py
Error:
E:\Portable Python 2.7.5.1\App\Scripts\pip run on 03/17/14 22:53:51
Exception:
Traceback (most recent call last):
File E:\Portable Python
2.7.5.1\App\lib\site-packages\pip\basecommand.py, line 122, in main
status = self.run(options, args)
File E:\Portable Python
2.7.5.1\App\lib\site-packages\pip\commands\install.py, line 257, in run
InstallRequirement.from_line(name, None))
File E:\Portable Python 2.7.5.1\App\lib\site-packages\pip\req.py, line
172, in from_line
return cls(req, comes_from, url=url, prereleases=prereleases)
File E:\Portable Python 2.7.5.1\App\lib\site-packages\pip\req.py, line
70, in __init__
req = pkg_resources.Requirement.parse(req)
File E:\Portable Python
2.7.5.1\App\lib\site-packages\pip\_vendor\pkg_resources.py, line 2606, in
parse
reqs = list(parse_requirements(s))
File E:\Portable Python
2.7.5.1\App\lib\site-packages\pip\_vendor\pkg_resources.py, line 2544, in
parse_requirements
line, p, specs = scan_list(VERSION,LINE_END,line,p,(1,2),version
spec)
File E:\Portable Python
2.7.5.1\App\lib\site-packages\pip\_vendor\pkg_resources.py, line 2512, in
scan_list
raise ValueError(Expected +item_name+ in,line,at,line[p:])
ValueError: ('Expected version spec in', 'E:\\Portable Python
2.7.5.1\\binwalk-1.3.0\\src\\setup.py', 'at', ':\\Portable Python
2.7.5.1\\binwalk-1.3.0\\src\\setup.py')
--
I'm no expert, but when I try to run pip install ... it seems to want
a directory that contains a setup.py file rather than the path of the
setup.py file itself. Try:
pip install E:\Portable Python 2.7.5.1\binwalk-1.3.0\src
perhaps?
-Peter Mawhorter
http://phoenixinteractive.mine.nu/websitebb/viewtopic.php?f=35t=99
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Telepathy is server or client?
Hi, These days I see Telepathy on the net. Not so much examples for this guy. Is it used to write client or server? I mean, for example, I wanna develop a voice chatting system, so, can use this guy to develop a client or server? Thanks. Wesley -- https://mail.python.org/mailman/listinfo/python-list
Re: Switching between cmd.CMD instances
On Apr 2, 2014, at 1:03 AM, Josh English joshua.r.engl...@gmail.com wrote: I have a program with several cmd.Cmd instances. I am trying to figure out what the best way to organize them should be. I've got my BossCmd, SubmissionCmd, and StoryCmd objects. The BossCmd object can start either of the other two, and this module allows the user switch back and forth between them. Exiting either of the sub-command objects returns back to the BossCmd. I have defined both a do_done and do_exit method on the sub-commands. Is it possible to flag BossCmd so when either of the other two process do_exit, the BossCmd will also exit? Josh I am anything BUT a super experienced Python programmer, but if it were my problem - and if BossCmd has anything like an event loop in it, then certainly one way to handle this would be to have a Status.py module that contained status flags for each of the modules. All three modules would import status” and do_done and do_exit would set status flags in status.py on their way out. I’m sure there are better answers. I’ll be interested to see what else is suggested. -Bill -- https://mail.python.org/mailman/listinfo/python-list
COM Server data from python
I am attempting to provide a bit of data through a com server I did a comparison of speed of my COM interface to ADODB and It seems massively slower. I'm not sure if there is something I need to adjust or maybe that I am making so many calls to the COM server that each call takes time and possibly ADO is just buffering some data in chunks to my code. This is mainly for an excel add-on that has not possibility to connect to mongodb except through an interface like this. I thought it was not really a big deal until I tested larger amounts of data and the speed took a nose dive. For instance 10,000 records just to walk through and pull a couple fields. ADO on the exact same data took only 1.5 seconds where my python code took close to 58 seconds to do the same thing. I've played around with design etc. When i test the same code directly from python I get the same result if not better than I did with ADO. Is there some bit of COM magic that I am missing. Or is this because python is having to do more behind the scenes? Thanks -- https://mail.python.org/mailman/listinfo/python-list
Re: Python to be replaced by the new language called Cookie !
On 2014-04-02, Chris Angelico ros...@gmail.com wrote: On Wed, Apr 2, 2014 at 3:15 PM, Dan Sommers d...@tombstonezero.net wrote: On Wed, 02 Apr 2014 02:19:38 +1100, Chris Angelico wrote: These improvements are absolutely critical to the language, and should be made in Python 2.5.7, 2.6.9, and 3.0.2. Anyone using a newer version of Python is paying the price for early adoption, and should back-level immediately to a supported version. I'm using 2.8. Should I upgrade? Definitely. Python 2.8 is supported only on Windows XP 64-bit, and you should upgrade to 32-bit Python; this will give you a 50% saving on all pointers, and Python uses a lot of pointers, so your code will be more efficient. And you'll save a _ton_ of money on ink. -- Grant Edwards grant.b.edwardsYow! Is my fallout shelter at termite proof? gmail.com -- https://mail.python.org/mailman/listinfo/python-list
Yet Another Switch-Case Syntax Proposal
Hi all. I would proposeto you all a switch-case syntax for Python. I already read PEP 3103 and I'm not completely satisfied by any of the proposed solutions. This is my proposal: switch_stmt ::= switch identifier case expression_list : suite (case expression_list : suite)* [else : suite] or, more simply: switch x case var1: case var2: ... case var3: ... else: ... Expression list should yield an iterable. The case suite will be executed if the variable of the identifier is a member of the iterable. For example, in a switch x statement, the code case iterable: is identical to if x in iterable: (or elif etc). So if you want to perform the same case block for more than one value, you have only to specify a tuple, a range etc. I would suggest to add an exception for non-iterable variables, so that you don't have to write case var, : but simply case var: and it will be identical to if x == var: . It's a bit tricky but the alternative is ugly. Fallthrough is disabled by default. The continue keyword cause to skip all the remaining current case suite. The next case will be checked. You can't use the continue keyword in the else clause. Some random remarks: 1. switch is on the same line of the first case. This will avoid any unpythonic syntaxes like: switch x case var1: ... or switch x: case var1: ... 2. Fallthrough is disabled by default because IMHO it's what non-programmers expect and that's what programmer usually needs more. I don't think a switch with such a syntax needs a break statement. 3. As an alternative, the continue statement could be written only at the end of a case suite; it will be less powerful and not consistent with the other compound statements, but it will improve readability. 4. I decided to not use already existing keyword like if or in, since it will be misleading and problematic for syntax highlighters. Tell me what you think about. -- https://mail.python.org/mailman/listinfo/python-list
python nose unit test - test plan preparation
Hello Group, I am using python's nose testing frame work for my automated testing. I would like to run my python cases and generate only the documentation without actually running/executing the cases. How is this possible? I head collect-only plugin will help to achieve the same. But I think I could not make out how to use this effectively? Are there any other possibilities? I mainly want to collect the comments form the test classes and test methods. Thanks, Harish. -- https://mail.python.org/mailman/listinfo/python-list
Retrieve item deep in dict tree?
I have a big hairy data structure which is a tree of nested dicts. I have a sequence of strings which represents a path through the tree. Different leaves in the tree will be at different depths (which range from 1 to about 4 or 5 at most). I want to get the value stored at that path. Thus, if keys = ['foo', 'bar', 'baz'] I want to retrieve tree['foo']['bar']['baz']. Is there some idiomatic, non-cryptic way to write that as a one-liner? I'm using Python 2.7. --- Roy Smith r...@panix.com -- https://mail.python.org/mailman/listinfo/python-list
Re: Retrieve item deep in dict tree?
In mailman.8818.1396461529.18130.python-l...@python.org Roy Smith r...@panix.com writes: I have a big hairy data structure which is a tree of nested dicts. I = have a sequence of strings which represents a path through the tree. = Different leaves in the tree will be at different depths (which range = from 1 to about 4 or 5 at most). I want to get the value stored at that = path. Thus, if keys =3D ['foo', 'bar', 'baz'] I want to retrieve tree['foo']['bar']['baz']. Is there some idiomatic, non-cryptic way to write that as a one-liner? I'm using Python 2.7. How about three lines? subtree = tree for key in keys: subtree = subtree.get(key) -- John Gordon Imagine what it must be like for a real medical doctor to gor...@panix.comwatch 'House', or a real serial killer to watch 'Dexter'. -- https://mail.python.org/mailman/listinfo/python-list
Re: Yet Another Switch-Case Syntax Proposal
On Wed, Apr 2, 2014 at 8:53 AM, Lucas Malor 3kywjyd...@snkmail.com wrote: Hi all. I would proposeto you all a switch-case syntax for Python. I already read PEP 3103 and I'm not completely satisfied by any of the proposed solutions. This is my proposal: A more suitable place to propose this would be the python-ideas mailing list. switch_stmt ::= switch identifier case expression_list : suite (case expression_list : suite)* [else : suite] Why just just an identifier after the switch keyword instead of an expression? There are many cases where a user might wish to do something along the lines of switch values[0] case 42: Expression list should yield an iterable. The case suite will be executed if the variable of the identifier is a member of the iterable. An expression_list is one or more independent expressions separated by commas that don't create a tuple. If you just want an iterable, then it should just be one expression. But I'm not sure I like that. Additionally, what if the value that you want to match is itself a tuple? If I write switch 1, 2, 3 case 1, 2, 3: will it match against the entire tuple or will it try to match against the individual ints and fail? I prefer the case in syntax of Alternative B of PEP 3103 here; it reads naturally and makes explicit in the syntax whether you're matching against an individual object or a grouping of objects. For example, in a switch x statement, the code case iterable: is identical to if x in iterable: (or elif etc). So if you want to perform the same case block for more than one value, you have only to specify a tuple, a range etc. __contains__ is not part of the interface for iterables; it is defined for containers only. So if the matching expression evaluates to a container that could be the code equivalent, but for arbitrary iterables the equivalent code would have to be: for item in iterable: if value == item: # suite break else: # move on to the next case Which is unlikely to be any more efficient than a simple elif chain. Fallthrough is disabled by default. The continue keyword cause to skip all the remaining current case suite. The next case will be checked. You can't use the continue keyword in the else clause. If we overload the continue keyword in this way, then a continue can't be used within the switch to control a loop that the switch is nested within. Instead of disabling fallthrough by default, why not disable it all together? The container/iterable matching means that we can already match multiple values to the same suite, so the only use remaining for fallthrough would be the kind that creates code smell. Some random remarks: 1. switch is on the same line of the first case. This will avoid any unpythonic syntaxes like: I like this better than any of the alternatives in the PEP. 4. I decided to not use already existing keyword like if or in, since it will be misleading and problematic for syntax highlighters. Syntax highlighters could easily distinguish between something like case in and existing uses of in. The former starts with the keyword case, and the others do not. -- https://mail.python.org/mailman/listinfo/python-list
Re: Retrieve item deep in dict tree?
On 04/02/2014 10:58 AM, Roy Smith wrote: I have a big hairy data structure which is a tree of nested dicts. I have a sequence of strings which represents a path through the tree. Different leaves in the tree will be at different depths (which range from 1 to about 4 or 5 at most). I want to get the value stored at that path. Thus, if keys = ['foo', 'bar', 'baz'] I want to retrieve tree['foo']['bar']['baz']. Is there some idiomatic, non-cryptic way to write that as a one-liner? I'm using Python 2.7. Can you make the top-level tree a custom dict that understands tuple keys should be drilled down? -- ~Ethan~ -- https://mail.python.org/mailman/listinfo/python-list
Calling macro from python script bombs out when custom table style is used
I have a python script (2.7.5) that calls a macro from an excel template. Both
scripts ran fine until i tried to apply a custom table style within excel. I
suspect this has something to do with the win32.com client application not
recognizing custom table styles. Does anyone have a work around suggestion?
My python script:
import os.path
import win32com.client
mySourceExcelFile = C:\\tests\\Source\\Cats.xlsm
projectArea = (C:\\tests\\Target\\results\\)
projectName = (Cats)
print projectName
print repr(projectArea)
xlApp = win32com.client.DispatchEx('Excel.Application')
xlsPath = os.path.expanduser(mySourceExcelFile)
wb = xlApp.Workbooks.Open(Filename=xlsPath)
wb.Application.DisplayAlerts = False
xlApp.Run(FormatFile, projectArea, projectName)
xlApp.Quit()
My 2007 excel macro
Sub FormatFile(strResultsDir As String, targetFileName As String)
'
'
Application.DisplayAlerts = False
Workbooks.Open fileName:=strResultsDir targetFileName .dbf
ActiveSheet.ListObjects.Add(xlSrcRange, Range(A1,
ActiveCell.SpecialCells(xlLastCell)), , xlYes).Name = _
Table1
Range(Table1[#All]).Select
'ActiveSheet.ListObjects(Table1).TableStyle = TableStyleLight1
ActiveSheet.ListObjects(Table1).TableStyle = MyStyle
ActiveWorkbook.SaveAs fileName:=strResultsDir targetFileName .xlsx,
FileFormat:=xlOpenXMLWorkbook, CreateBackup:=False
ActiveWorkbook.Close
Application.Quit
End Sub
Macro bombs out when it gets to my custom table style
ActiveSheet.ListObjects(Table1).TableStyle = MyStyle
Works fine when table style is one that comes with excel: TableStyleLight1
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Re: Retrieve item deep in dict tree?
On Wed, 02 Apr 2014 13:58:16 -0400, Roy Smith wrote: I have a big hairy data structure which is a tree of nested dicts. I have a sequence of strings which represents a path through the tree. Different leaves in the tree will be at different depths (which range from 1 to about 4 or 5 at most). I want to get the value stored at that path. Thus, if keys = ['foo', 'bar', 'baz'] I want to retrieve tree['foo']['bar']['baz']. Is there some idiomatic, non-cryptic way to write that as a one-liner? Er, idiomatic one liner? No, not really. But a helper function makes nearly anything into a one-liner: def traverse(tree, *keys): t = tree for k in keys: t = t[k] return t # one-liner leaf = traverse(tree, *list_of_keys) -- Steven -- https://mail.python.org/mailman/listinfo/python-list
Re: Retrieve item deep in dict tree?
On 04/02/2014 01:18 PM, Steven D'Aprano wrote: On Wed, 02 Apr 2014 13:58:16 -0400, Roy Smith wrote: I have a big hairy data structure which is a tree of nested dicts. I have a sequence of strings which represents a path through the tree. Different leaves in the tree will be at different depths (which range from 1 to about 4 or 5 at most). I want to get the value stored at that path. Thus, if keys = ['foo', 'bar', 'baz'] I want to retrieve tree['foo']['bar']['baz']. Is there some idiomatic, non-cryptic way to write that as a one-liner? Er, idiomatic one liner? No, not really. But a helper function makes nearly anything into a one-liner: def traverse(tree, *keys): t = tree for k in keys: t = t[k] return t # one-liner leaf = traverse(tree, *list_of_keys) +1 Short, simple -- good Python. :) -- ~Ethan~ -- https://mail.python.org/mailman/listinfo/python-list
Re: Yet Another Switch-Case Syntax Proposal
On Thu, Apr 3, 2014 at 1:53 AM, Lucas Malor 3kywjyd...@snkmail.com wrote:
For example, in a switch x statement, the code case iterable: is
identical to if x in iterable: (or elif etc). So if you want to perform
the same case block for more than one value, you have only to specify a
tuple, a range etc.
I would suggest to add an exception for non-iterable variables, so that you
don't have to write case var, : but simply case var: and it will be
identical to if x == var: . It's a bit tricky but the alternative is ugly.
This is sounding like a nasty special case. I'm ambivalent on the
overall proposal (want to see some real-world usage examples and how
they read), but I don't like the iterable vs non-iterable
distinction. Compare:
case 1,2,3: # Tuple - checks for any of its members
case range(10,110,10): # Range object - beautiful, convenient!
case 42: # Non-iterable, works the way you'd expect
case {1:Test,2:Hello,3:[]}: # Dictionary, may be surprising
case Test,: # Tuple with a single string in it - works but ugly
case Test: # And there's your problem.
You now have three valid ways to interpret that last statement:
1) It matches the exact string Test, the way people will expect
2) It matches any of the results of iterating over it
3) It matches anything where x in Test is true
The first option is a big fat special case, and one that'll get more
complicated as you start looking at subclasses and such. The second
means that case x is equivalent to case tuple(x), but I can't
imagine people would actually want that in real usage. The third is
the way you've described it so far, but again, I cannot imagine it as
anything other than highly surprising that my last statement above
will match st and es.
It would be more invasive to the language, but possibly better, to
have a new magic method __case__ which gets called to see if this
object matches this switched object. If that isn't defined, an
equality check is done. Then all of the above cases can be made
unsurprising by simply defining __case__ on a tuple (membership test)
and a range (ditto, except that the members aren't specifically
instantiated); everything else will check equality. (Having a dict
check for its keys is surprising, IMO, and I don't mind that one not
working.) It'd make it a *lot* easier to ensure sane behaviour in
custom classes; if you want your class to function like a single unit,
don't define __case__, but if you want it to function like a
collection, set __case__=__in__. What do you reckon?
ChrisA
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Recording instruction/data flow for a python script/program.
Hello, Is there a way for a python script's execution to be capture in an instruction/data flow log ? Since python is an interpreter this should be easy to do ? Such a feature would then allow the script to be played back in some kind of log player for a script or something ? And compare how the script executed on my PC versus perhaps the recorded log. Or perhaps follow the recorded log to see what happened... Bye, Skybuck. -- https://mail.python.org/mailman/listinfo/python-list
Re: Recording instruction/data flow for a python script/program.
Google is your friend: https://docs.python.org/2/library/trace.html On Wed, Apr 2, 2014 at 4:02 PM, Skybuck Flying windows7i...@dreampc2006.com wrote: Hello, Is there a way for a python script's execution to be capture in an instruction/data flow log ? Since python is an interpreter this should be easy to do ? Such a feature would then allow the script to be played back in some kind of log player for a script or something ? And compare how the script executed on my PC versus perhaps the recorded log. Or perhaps follow the recorded log to see what happened... Bye, Skybuck. -- https://mail.python.org/mailman/listinfo/python-list -- https://mail.python.org/mailman/listinfo/python-list
Unicode Chars in Windows Path
Hi All,
I'm in need of some encoding/decoding help for a situation for a Windows Path
that contains Unicode characters in it.
CODE
import os.path
import codecs
import sys
All_Tests = [uc:\automation_common\Python\TestCases\list_dir_script.txt]
for curr_test in All_Tests:
print(\n raw : + repr(curr_test) + \n)
print(\n encode : %s \n\n ) % os.path.normpath(codecs.encode(curr_test,
ascii))
print(\n decode : %s \n\n ) % curr_test.decode('string_escape')
CODE
Screen Output :
raw : u'c:\x07utomation_common\\Python\\TestCases\\list_dir_script.txt'
encode : c:utomation_common\Python\TestCases\list_dir_script.txt
decode : c:utomation_common\Python\TestCases\list_dir_script.txt
My goal is to have the properly formatting path in the output :
c:\automation_common\Python\TestCases\list_dir_script.txt
What is the magic encode/decode sequence here??
Thanks!
Steve
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Re: Switching between cmd.CMD instances
On Wed, Apr 2, 2014 at 1:03 AM, Josh English joshua.r.engl...@gmail.comwrote: I have a program with several cmd.Cmd instances. I am trying to figure out what the best way to organize them should be. I've got my BossCmd, SubmissionCmd, and StoryCmd objects. The BossCmd object can start either of the other two, and this module allows the user switch back and forth between them. Exiting either of the sub-command objects returns back to the BossCmd. I have defined both a do_done and do_exit method on the sub-commands. Is it possible to flag BossCmd so when either of the other two process do_exit, the BossCmd will also exit? I have an app that also has a number of cmd.Cmd subclasses to implement different interpreter layers. I haven't needed to implement what you're talking about here (exiting one interpreter just drops you down to a lower-level interpreter). However, it's definitely possible. You can have your SubmissionCmd and StoryCmd take a master (BossCmd) object in its __init__ method and store the BossCmd as an instance attribute. From there, you can implement a method interface in which the child Cmd subclasses can call to indicate to BossCmd that do_exit has been called and it should quit after the child's cmdloop returns. So something like this: class SubmissionCmd(cmd.Cmd): # your stuff def __init__(self, master): cmd.Cmd.__init__(self, *your_args) self.master = master def do_exit(self, line): self.master.child_has_exited() class BossCmd(cmd.Cmd): # your stuff def child_has_exited(self): self.exit_on_return = True # this should be set False in __init__ def do_submit(self, line): subcmd = SubmissionCmd(self) subcmd.cmdloop() if self.exit_on_return: return True Untested and incomplete, but you get the idea. HTH, Jason -- Jason M. Swails BioMaPS, Rutgers University Postdoctoral Researcher -- https://mail.python.org/mailman/listinfo/python-list
Re: Yet Another Switch-Case Syntax Proposal
On Thu, 03 Apr 2014 08:50:47 +1100, Chris Angelico wrote: On Thu, Apr 3, 2014 at 1:53 AM, Lucas Malor 3kywjyd...@snkmail.com wrote: For example, in a switch x statement, the code case iterable: is identical to if x in iterable: (or elif etc). So if you want to perform the same case block for more than one value, you have only to specify a tuple, a range etc. I would suggest to add an exception for non-iterable variables, so that you don't have to write case var, : but simply case var: and it will be identical to if x == var: . It's a bit tricky but the alternative is ugly. This is sounding like a nasty special case. I'm ambivalent on the overall proposal (want to see some real-world usage examples and how they read), but I don't like the iterable vs non-iterable distinction. If we're going to add switch and case keywords, how about we also add of? Then we can write: switch x case of a, b, c: # x equals one of a, b or c case of d, e, f: # x equals one of d, e or f case in g, h, i: # g, h and i must be iterable, and x is in one of them else: # none of the above match That means we can cleanly match the common use-case where we want to match something by equality, comparing against a list of 1 or more (usually) scalar values: case of 1, 2, [23, 42], 99: assert x == 1 or x == 2 or x = [23,42] or x == 99 while also supporting the more complex case where we're matching against one or more sequences: case in (1, 2, 99), [23, 42]: assert x == 1 or x == 2 or x = 99 or x == 23 or x == 42 Of course, in practice the second case is likely to be given dynamically, not as literals: case in LIST_OF_KEYWORDS: ... Another option is to say that the cases being tested ought to be quite small in number. If you're trying to do this: case in range(1): ... you're doing it wrong. That being the case, we only need to match by equality: case 1, 2, 3: assert x == 1 or x == 2 or x == 3 and can write this when we want to match against a sequence or iterator: case *LIST_OF_KEYWORDS: ... and on the rare occasion we want to match against substrings, we can build a wrapper class: class Wrapper: def __init__(self, value): self.value = value def __eq__(self, other): return other in self.value case Wrapper(Hello world!): # matches if x is a substring of Hello world! But what's the advantage here? Since Python is not a static-typed language, it's unlikely that there are any compile-time optimizations that can be performed here. If there are any run-time optimizations that a JIT optimizing compiler like Python can perform, it probably can perform them just as well on a series of if...elif. So I'm not sure I see what having special syntax for a switch-case statement gives us. -- Steven -- https://mail.python.org/mailman/listinfo/python-list
[ANN] ClamAV for Python 0.1
ClamAV for Python is a simple set of Python bindings for libclamav. It uses CFFI for the bindings. Please give all user input. I'm anxious to see what others think of this. -- https://mail.python.org/mailman/listinfo/python-list
Calculating time differences given daylight savings time
I am running Python 2.7 and would like to be able to calculate to the second the time difference between now and some future date/time in the same timezone while taking into account daylight savings time. I do not have pytz. Any ideas how to do it? If it requires having pytz, how would I do it with pytz? Thank you. -- https://mail.python.org/mailman/listinfo/python-list
Re: python nose unit test - test plan preparation
On Wednesday, April 2, 2014 6:52:04 PM UTC+5:30, Hareesha Karunakar wrote: Hello Group, I am using python's nose testing frame work for my automated testing. I would like to run my python cases and generate only the documentation without actually running/executing the cases. How is this possible? I head collect-only plugin will help to achieve the same. But I think I could not make out how to use this effectively? Are there any other possibilities? I mainly want to collect the comments form the test classes and test methods. If you dont get answers here you can try the nose group https://groups.google.com/forum/#!forum/nose-users -- https://mail.python.org/mailman/listinfo/python-list
Re: Unicode Chars in Windows Path
On Wed, 02 Apr 2014 16:27:04 -0700, Steve wrote: Hi All, I'm in need of some encoding/decoding help for a situation for a Windows Path that contains Unicode characters in it. CODE import os.path import codecs import sys All_Tests = [uc:\automation_common\Python\TestCases\list_dir_script.txt] I don't think this has anything to do with Unicode encoding or decoding. In Python string literals, the backslash makes the next character special. So \n makes a newline, \t makes a tab, and so forth. Only if the character being backslashed has no special meaning does Python give you a literal backslash: py print(x\tx) x x py print(x\Tx) x\Tx In this case, \a has special meaning, and is converted to the ASCII BEL control character: py u...\automation u'...\x07utomation' When working with Windows paths, you should make a habit of either escaping every backslash: uc:\\automation_common\\Python\\TestCases\\list_dir_script.txt using a raw-string: urc:\automation_common\Python\TestCases\list_dir_script.txt or just use forward slashes: uc:/automation_common/Python/TestCases/list_dir_script.txt Windows accepts both forward and backslashes in file names. If you fix that issue, I expect your problem will go away. -- Steven -- https://mail.python.org/mailman/listinfo/python-list
Re: Retrieve item deep in dict tree?
On Wednesday, April 2, 2014 11:28:16 PM UTC+5:30, Roy Smith wrote:
I have a big hairy data structure which is a tree of nested dicts. I have a
sequence of strings which represents a path through the tree. Different
leaves in the tree will be at different depths (which range from 1 to about 4
or 5 at most). I want to get the value stored at that path. Thus, if
keys = ['foo', 'bar', 'baz']
I want to retrieve tree['foo']['bar']['baz'].
Is there some idiomatic, non-cryptic way to write that as a one-liner?
I'm using Python 2.7.
What you are asking for is probably:
reduce((lambda tr, att: tr[att]), ['a','b','c'], nested)
'Hiii!!'
I used a nested thus
nested = {'a':{'b':{'c':Hiii!!}}}
But what you are REALLY looking for is what Steven/Gordon gave wink
In order to see more visibly that those whiles are just reduces
you may want to rewrite as:
reduce((lambda tr, att: str(tr) + [ + str(att) + ]), ['a','b','c'],
nested)
'nested[a][b][c]'
IOW the 'theorem' I am using is that
reduce(op, id, l)
is short for
while l:
id, l = op(id, l[0]), l[1:]
return id
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Re: Unicode Chars in Windows Path
On Thu, Apr 3, 2014 at 1:37 PM, Steven D'Aprano st...@pearwood.info wrote: Windows accepts both forward and backslashes in file names. Small clarification: The Windows *API* accepts both types of slash (you can open a file using forward slashes, for instance), but not all Windows *applications* are aware of this (generally only cross-platform ones take notice of this), and most Windows *users* prefer backslashes. So when you come to display a Windows path, you may want to convert to backslashes. But that's for display. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
Re: Retrieve item deep in dict tree?
On Thursday, April 3, 2014 8:11:33 AM UTC+5:30, Rustom Mody wrote: On Wednesday, April 2, 2014 11:28:16 PM UTC+5:30, Roy Smith wrote: I have a big hairy data structure which is a tree of nested dicts. I have a sequence of strings which represents a path through the tree. Different leaves in the tree will be at different depths (which range from 1 to about 4 or 5 at most). I want to get the value stored at that path. Thus, if keys = ['foo', 'bar', 'baz'] I want to retrieve tree['foo']['bar']['baz']. Is there some idiomatic, non-cryptic way to write that as a one-liner? I'm using Python 2.7. What you are asking for is probably: reduce((lambda tr, att: tr[att]), ['a','b','c'], nested) 'Hiii!!' Shorter version: reduce(dict.get, ['a','b','c'], nested) 'Hiii!!' -- https://mail.python.org/mailman/listinfo/python-list
Re: Retrieve item deep in dict tree?
On Wed, 02 Apr 2014 21:15:23 -0700, Rustom Mody wrote: reduce(dict.get, ['a','b','c'], nested) 'Hiii!!' Nice! -- Steven -- https://mail.python.org/mailman/listinfo/python-list
[issue21028] ElementTree objects should support all the same methods as Element objects
Stefan Behnel added the comment: Add all the element methods to the elementtree object. Ok, but why? An ElementTree object *is not* an Element. It's a representation of a document that *has* a root Element. It makes sense for a document to allow searches over its content, and the ElementTree class currently supports that, using the find*() or iter() methods. They are deep or global content accessor shortcuts, in addition to the path through the normal getroot() method. But I can't see how making ElementTree objects look and behave like their own root Element improves anything. Instead, it would just make the distinction between the two completely unclear, and would also lead to quirks like the question why iterating over a document yields the second level of children. Or the question what the attrib property of a document could mean. Instead of blurring it, would you have an idea what we could improve in the documentation to make this distinction clearer? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21028 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21124] _struct module compilation error under Cygwin 1.7.17 on Python 3.4
dellair jie added the comment: Neil, It doesn't look like a duplicate of Issue6672. The one in Issue6672 was for Mingw, all the patches simply added __MINGW32__ to __CYGWIN__ build structure. While my issue is, the build failed with _struct.c on Cygwin. So the module is recognized, just didn't pass the compilation. Br, Dellair -- status: pending - open ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21124 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21028] ElementTree objects should support all the same methods as Element objects
Raymond Hettinger added the comment:
ElementTree class currently supports that,
using the find*() or iter() methods.
That would be great except that ElementTree doesn't actually have an __iter__
method.
Ok, but why?
The short answer is that every time I conduct Python training, people routinely
trip over this issue. The whole point of the ElementTree package was to have a
more pythonic interface than DOM or SAX. I'm sure there are people that argue
that the requests module isn't great because it conflates requesting with
authentication and password management, but the beauty of requests is that its
API matches how people try to use it. The outer ElementTree object is awkward
in this regard.
I don't see any benefit from having this code fail:
from xml.etree.ElementTree import parse
catalog = parse('books.xml')
for book in catalog:
print book.get('id')
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[issue21028] ElementTree objects should support all the same methods as Element objects
Stefan Behnel added the comment:
I don't see any benefit from having this code fail:
from xml.etree.ElementTree import parse
catalog = parse('books.xml')
for book in catalog:
print book.get('id')
Why would you expect it to work? And how?
Why would it only iterate over the *children* of the root Element that it
wraps, and not yield the root Element itself, and maybe any preceding or
following processing instructions or comments, the doctype declaration, etc.?
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[issue21122] CPython fails to build modules with LLVM LTO on Mac OS X
Jonas Wagner added the comment: Thanks Ned, this is interesting! I don't know about Mac OS, but on Ubuntu, LTO and PGO apparently make Python around 10% faster (see #17781). However, that data point refers to GCC's LTO, not LLVM's. Personally I'm interested in LTO because I want to obtain whole-program LLVM bitcode files (for use in a research project about instrumentation). However, if there is something I can help (e.g., running benchmarks with different compilation settings), let me know. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21122 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21130] equivalent functools.partial instances should compare equal
New submission from Thomas Heller: I think that 'equivalent' functools.partial objects should compare equal, so the following snippet SHOULD print True: import functools f = lambda x: x a = functools.partial(f, 42) b = functools.partial(f, 42) a == b False -- components: Library (Lib) messages: 215363 nosy: theller priority: normal severity: normal status: open title: equivalent functools.partial instances should compare equal type: behavior ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21130 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21122] CPython fails to build modules with LLVM LTO on Mac OS X
Ronald Oussoren added the comment: I've used -O4 for extensions in the past (which until recently implied LTO) and that worked fine. I'm pretty sure that I haven't used LTO for python itself, apart from a some tests with an early version llvm-gcc where using LTO for building python used to crash the compiler :-) BTW. There's no clear pattern in the missing symbols. The missing symbols for global functions could be due to aggressive inlining (and then deciding that the standalone function isn't needed anymore), but that is fairly unlikely and wouldn't explain the missing data symbols. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21122 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21131] test_faulthandler.test_register_chain fails on 64bit ppc/arm with kernel = 3.10
New submission from Bohuslav Slavek Kabrda: test_faulthandler.test_register_chain fails on some 64bit architectures (arm8, ppc64) with kernel = 3.10: == FAIL: test_register_chain (__main__.FaultHandlerTests) -- Traceback (most recent call last): File /builddir/build/BUILD/Python-3.3.2/Lib/test/test_faulthandler.py, line 588, in test_register_chain self.check_register(chain=True) File /builddir/build/BUILD/Python-3.3.2/Lib/test/test_faulthandler.py, line 572, in check_register self.assertEqual(exitcode, 0) AssertionError: -11 != 0 I created a minimal reproducer (reproduces the issue on 3.3, 3.4 and dev) of this segfault (attached). When run with GC assertions turned on, Python fails with: python: /builddir/build/BUILD/Python-3.3.2/Modules/gcmodule.c:332: update_refs: Assertion `gc-gc.gc_refs == (-3)\' failed. We experienced this issue when building Python 3.3 on Fedora's arm8 builder [1], it seems that opensuse have experienced the same failure on ppc64 [2] and ubuntu has a similar issue in their 64bit arm builds [3]. It seems that this may be caused by a change in kernel, since it's only reproducible on kernel = 3.10. A nice explanation of what goes on and how the problem can be narrowed down is at the opensuse bug report [4], this is basically where I got stuck with this problem, too. [1] https://bugzilla.redhat.com/show_bug.cgi?id=1045193 [2] https://bugzilla.novell.com/show_bug.cgi?id=831629 [3] https://bugs.launchpad.net/ubuntu/+source/python3.4/+bug/1264354 [4] https://bugzilla.novell.com/show_bug.cgi?id=831629#c15 -- components: Tests files: test_register_chain_segfault_reproducer.py messages: 215365 nosy: bkabrda priority: normal severity: normal status: open title: test_faulthandler.test_register_chain fails on 64bit ppc/arm with kernel = 3.10 versions: Python 3.3, Python 3.4, Python 3.5 Added file: http://bugs.python.org/file34699/test_register_chain_segfault_reproducer.py ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21131 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21122] CPython fails to build modules with LLVM LTO on Mac OS X
Ronald Oussoren added the comment: Have you tried the -export_dynamic option for ld(1): -export_dynamic Preserves all global symbols in main executables during LTO. Without this option, Link Time Optimization is allowed to inline and remove global functions. This option is used when a main executable may load a plug-in which requires certain symbols from the main executable. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21122 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21122] CPython fails to build modules with LLVM LTO on Mac OS X
Ronald Oussoren added the comment: This works for me (with a separate build directory): CC=clang CXX=clang++ CFLAGS=-g -flto LDFLAGS=-flto -Wl,-export_dynamic ../configure This is on OSX 10.9.2, with Xcode 5.1, and clang --version says: $ clang --version Apple LLVM version 5.1 (clang-503.0.38) (based on LLVM 3.4svn) Target: x86_64-apple-darwin13.1.0 Thread model: posix Tests are still running, but so far there are no unexpected failures. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21122 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21131] test_faulthandler.test_register_chain fails on 64bit ppc/arm with kernel = 3.10
Changes by STINNER Victor victor.stin...@gmail.com: -- nosy: +haypo ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21131 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21131] test_faulthandler.test_register_chain fails on 64bit ppc/arm with kernel = 3.10
STINNER Victor added the comment:
test_faulthandler.test_register_chain fails on some 64bit architectures (arm8,
ppc64) with kernel = 3.10
I am a little bit surprised that the bug depends on the kernel version.
Does test_register_chain_segfault_reproducer.py also crash with chain=False?
Can you check if HAVE_SIGACTION is defined in pyconfig.h? Or in Python: import
sysconfig; print(sysconfig.get_config_var('HAVE_SIGACTION')).
Wit chain=True, faulthandler_register() registers its signal handler with
SA_NODEFER flag:
---
/* if the signal is received while the kernel is executing a system
call, try to restart the system call instead of interrupting it and
return EINTR. */
action.sa_flags = SA_RESTART;
if (chain) {
/* do not prevent the signal from being received from within its
own signal handler */
action.sa_flags = SA_NODEFER;
}
---
With chain=True, the faulthandler_user() function calls the previous signal
handler with:
---
#ifdef HAVE_SIGACTION
if (user-chain) {
(void)sigaction(signum, user-previous, NULL);
errno = save_errno;
/* call the previous signal handler */
raise(signum);
save_errno = errno;
(void)faulthandler_register(signum, user-chain, NULL);
errno = save_errno;
}
#else
if (user-chain) {
errno = save_errno;
/* call the previous signal handler */
user-previous(signum);
}
#endif
---
You can try to add #undef HAVE_SIGACTION in faulthandler.c (after #include
Python.h) to see if the bug can be reproduced without sigaction. The code
using signal() is very different, especially when chaining signal handlers.
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[issue21130] equivalent functools.partial instances should compare equal
Raymond Hettinger added the comment: Even equivalent functions don't compare as equal: (lambda x: x*x) == (lambda x: x*x) False -- nosy: +rhettinger ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21130 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21131] test_faulthandler.test_register_chain fails on 64bit ppc/arm with kernel = 3.10
STINNER Victor added the comment: Would it be possible to list the kernel version (full version including the minor version) on which the test works or crash? You are talking about 3.10 without the minor version. It may be a regression in the kernel. Example of change in Linux kernel 3.10.17: --- commit 19a420033da02200c424adfa3a7b9eed6e3a6dc2 Author: Christian Ruppert christian.rupp...@abilis.com Date: Wed Oct 2 11:13:38 2013 +0200 ARC: Fix signal frame management for SA_SIGINFO commit 10469350e345599dfef3fa78a7c19fb230e674c1 upstream. Previously, when a signal was registered with SA_SIGINFO, parameters 2 and 3 of the signal handler were written to registers r1 and r2 before the register set was saved. This led to corruption of these two registers after returning from the signal handler (the wrong values were restored). With this patch, registers are now saved before any parameters are passed, thus maintaining the processor state from before signal entry. Signed-off-by: Christian Ruppert christian.rupp...@abilis.com Signed-off-by: Vineet Gupta vgu...@synopsys.com Signed-off-by: Greg Kroah-Hartman gre...@linuxfoundation.org --- Extract of changes of Linux 3.10.6: --- ARM: move signal handlers into a vdso-like page ARM: make vectors page inaccessible from userspace ARM: fix a cockup in 48be69a02 (ARM: move signal handlers into a vdso-like page) ARM: fix nommu builds with 48be69a02 (ARM: move signal handlers into a vdso-like page) --- Commit: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=48be69a02 I would like to make sure that the bug is not a kernel bug. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21131 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21131] test_faulthandler.test_register_chain fails on 64bit ppc/arm with kernel = 3.10
Bohuslav Slavek Kabrda added the comment:
I'm also surprised that this depends on kernel version, however that's what I
found out (and the opensuse guys seem to only have reproduced this on kernel =
3.10, too).
- Full kernel version (uname -r output): 3.13.0-0.rc7.28.sa2.aarch64
- The reproducer *doesn't* crash with chain=False.
- HAVE_SIGACTION:
import sysconfig; print(sysconfig.get_config_var('HAVE_SIGACTION'))
1
- I'll do rebuild with #undef HAVE_SIGACTION and post my results here as soon
as it's finished.
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[issue18652] Add itertools.first_true (return first true item in iterable)
Roundup Robot added the comment: New changeset 3e2354dde892 by Raymond Hettinger in branch '3.4': Issue #18652: Add an itertools recipe for first_true() http://hg.python.org/cpython/rev/3e2354dde892 -- nosy: +python-dev ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18652 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18652] Add itertools.first_true (return first true item in iterable)
Changes by Raymond Hettinger raymond.hettin...@gmail.com: -- resolution: - fixed status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18652 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21131] test_faulthandler.test_register_chain fails on 64bit ppc/arm with kernel = 3.10
Bohuslav Slavek Kabrda added the comment: Ok, so with #undef HAVE_SIGACTION both the reproducer and the original test (as well as all tests in test_faulthandler) pass fine. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21131 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21130] equivalent functools.partial instances should compare equal
Thomas Heller added the comment: Sure. I'm not sure 'equivalent' is the word I should have used. I suggest (and I would have expected) that partial instances (a, b) should compare equal when a.func == b.func \ and a.args == b.args \ and a.keywords == b.keywords -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21130 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19662] smtpd.py should not decode utf-8
Sreepriya Chalakkal added the comment: Hi David, The variable decode_data is included to control decoding. But I am not sure what needs to be done while calling the process_message inside found_terminator when it is binary data. How to work around with binary data? Can you tell me what are the data types concerning binary data? -- Added file: http://bugs.python.org/file34700/switch_while_decode1.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19662 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17846] Building Python on Windows - Supplementary info
Martin v. Löwis added the comment: The limitation of build.bat (as you also reported) is that it builds a debug build. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17846 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21130] equivalent functools.partial instances should compare equal
eryksun added the comment: Function equality is based on identity, as inherited from object. But there's a precedent for this idea in method_richcompare, which compares the method's __func__ and __self__: http://hg.python.org/cpython/file/04f714765c13/Objects/classobject.c#l208 -- nosy: +eryksun ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21130 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21132] Failure to import win32api
New submission from David Woakes: I've seen issue 21050 and tried a complete uninstall, delete c:\python34 and install of python 3.4. I can't get win32api to load unless I copy pythoncom34.dll and psywintypes34.dll to C:\Python34\Lib\site-packages\win32 from C:\Python34\Lib\site-packages\pywin32_system32. Here's output from a python -v session: import win32api Traceback (most recent call last): File stdin, line 1, in module File frozen importlib._bootstrap, line 2214, in _find_and_load File frozen importlib._bootstrap, line 2203, in _find_and_load_unlocked File frozen importlib._bootstrap, line 1191, in _load_unlocked File frozen importlib._bootstrap, line 1161, in _load_backward_compatible File frozen importlib._bootstrap, line 539, in _check_name_wrapper File frozen importlib._bootstrap, line 1692, in load_module File frozen importlib._bootstrap, line 321, in _call_with_frames_removed ImportError: DLL load failed: The specified module could not be found. import pdb; pdb.pm() # C:\Python34\lib\__pycache__\pdb.cpython-34.pyc matches C:\Python34\lib\pdb.py # code object from 'C:\\Python34\\lib\\__pycache__\\pdb.cpython-34.pyc' # C:\Python34\lib\__pycache__\re.cpython-34.pyc matches C:\Python34\lib\re.py # code object from 'C:\\Python34\\lib\\__pycache__\\re.cpython-34.pyc' # C:\Python34\lib\__pycache__\sre_compile.cpython-34.pyc matches C:\Python34\lib\sre_compile.py # code object from 'C:\\Python34\\lib\\__pycache__\\sre_compile.cpython-34.pyc' # C:\Python34\lib\__pycache__\sre_parse.cpython-34.pyc matches C:\Python34\lib\sre_parse.py # code object from 'C:\\Python34\\lib\\__pycache__\\sre_parse.cpython-34.pyc' # C:\Python34\lib\__pycache__\sre_constants.cpython-34.pyc matches C:\Python34\lib\sre_constants.py # code object from 'C:\\Python34\\lib\\__pycache__\\sre_constants.cpython-34.pyc' import 'sre_constants' # _frozen_importlib.SourceFileLoader object at 0x02EB21B0 import 'sre_parse' # _frozen_importlib.SourceFileLoader object at 0x02EAE4B0 import 'sre_compile' # _frozen_importlib.SourceFileLoader object at 0x027D4BF0 # C:\Python34\lib\__pycache__\copyreg.cpython-34.pyc matches C:\Python34\lib\copyreg.py # code object from 'C:\\Python34\\lib\\__pycache__\\copyreg.cpython-34.pyc' import 'copyreg' # _frozen_importlib.SourceFileLoader object at 0x02EB23B0 import 're' # _frozen_importlib.SourceFileLoader object at 0x027D44D0 # C:\Python34\lib\__pycache__\cmd.cpython-34.pyc matches C:\Python34\lib\cmd.py # code object from 'C:\\Python34\\lib\\__pycache__\\cmd.cpython-34.pyc' # C:\Python34\lib\__pycache__\string.cpython-34.pyc matches C:\Python34\lib\string.py # code object from 'C:\\Python34\\lib\\__pycache__\\string.cpython-34.pyc' import 'string' # _frozen_importlib.SourceFileLoader object at 0x02EB2CB0 import 'cmd' # _frozen_importlib.SourceFileLoader object at 0x02EAEDF0 # C:\Python34\lib\__pycache__\bdb.cpython-34.pyc matches C:\Python34\lib\bdb.py # code object from 'C:\\Python34\\lib\\__pycache__\\bdb.cpython-34.pyc' # C:\Python34\lib\__pycache__\fnmatch.cpython-34.pyc matches C:\Python34\lib\fnmatch.py # code object from 'C:\\Python34\\lib\\__pycache__\\fnmatch.cpython-34.pyc' # C:\Python34\lib\__pycache__\posixpath.cpython-34.pyc matches C:\Python34\lib\posixpath.py # code object from 'C:\\Python34\\lib\\__pycache__\\posixpath.cpython-34.pyc' import 'posixpath' # _frozen_importlib.SourceFileLoader object at 0x02EBBFD0 import 'fnmatch' # _frozen_importlib.SourceFileLoader object at 0x02EBBD30 # C:\Python34\lib\__pycache__\inspect.cpython-34.pyc matches C:\Python34\lib\inspect.py # code object from 'C:\\Python34\\lib\\__pycache__\\inspect.cpython-34.pyc' # C:\Python34\lib\__pycache__\ast.cpython-34.pyc matches C:\Python34\lib\ast.py # code object from 'C:\\Python34\\lib\\__pycache__\\ast.cpython-34.pyc' import 'ast' # _frozen_importlib.SourceFileLoader object at 0x02ED7D30 # C:\Python34\lib\importlib\__pycache__\__init__.cpython-34.pyc matches C:\Python34\lib\importlib\__init__.py # code object from 'C:\\Python34\\lib\\importlib\\__pycache__\\__init__.cpython-34.pyc' # C:\Python34\lib\__pycache__\warnings.cpython-34.pyc matches C:\Python34\lib\warnings.py # code object from 'C:\\Python34\\lib\\__pycache__\\warnings.cpython-34.pyc' import 'warnings' # _frozen_importlib.SourceFileLoader object at 0x02EF94B0 import 'importlib' # _frozen_importlib.SourceFileLoader object at 0x02EF92D0 # C:\Python34\lib\importlib\__pycache__\machinery.cpython-34.pyc matches C:\Python34\lib\importlib\machinery.py # code object from 'C:\\Python34\\lib\\importlib\\__pycache__\\machinery.cpython-34.pyc' import 'importlib.machinery' # _frozen_importlib.SourceFileLoader object at 0x02EF9410 # C:\Python34\lib\__pycache__\linecache.cpython-34.pyc matches C:\Python34\lib\linecache.py # code object from 'C:\\Python34\\lib\\__pycache__\\linecache.cpython-34.pyc' # C:\Python34\lib\__pycache__\tokenize.cpython-34.pyc matches C:\Python34\lib\tokenize.py # code object from
[issue21124] _struct module compilation error under Cygwin 1.7.17 on Python 3.4
Masayuki Yamamoto added the comment: I wrote a patch file. In other extention module source codes, global variable PyTypeObject has initialized to using PyVarObject_HEAD_INIT(NULL, 0). And so, as with other modules, I tried to edit and compiling _struct.c in Cygwin 1.7.28. The module compiling was passing, And struct module passed a test python3.4 -m test test_struct. -- keywords: +patch nosy: +masamoto Added file: http://bugs.python.org/file34701/3.4-struct.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21124 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21133] unittest discover should allow option to run each package separately
New submission from the mulhern: You can run python -m unittest discover some args and the unittests discovered by discover will be run. This is nice. However, it is actually desirable to run each unittest package individually, rather than in the same interpreter instance. When run via discover, imports from previous unittests corrupt the namespace of subsequent unittests and lead to failures (usually if there are mock objects in previously imported unit tests) and successes (usually if some other test module has imported something that the current test module ought to import but does not) which are both erroneous. discover should have some option to start the interpreter afresh for each unittest package or perhaps just clear all its imports. -- components: Library (Lib) messages: 215380 nosy: the.mulhern priority: normal severity: normal status: open title: unittest discover should allow option to run each package separately type: enhancement versions: Python 2.7, Python 3.1, Python 3.2, Python 3.3, Python 3.4, Python 3.5 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21133 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20375] ElementTree: Document handling processing instructions
Eli Bendersky added the comment: I left some comments in Rietveld. There shouldn't be a problem getting these into 3.4 too - doc changes are usually excempt from most restrictions. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20375 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21028] ElementTree objects should support all the same methods as Element objects
Eli Bendersky added the comment: Do you have concrete suggestions? Make the tree iterable? Add all element methods to the tree, implicitly forwarding to the root? Yes, that is the feature request. Add all the element methods to the elementtree object. Implicitly forwarding to the root would be a reasonable way to do it, but that is just an implementation detail. Porting over all methods of Element to ElementTree sounds like an overkill to me. How about just making a sensibly-behaving __iter__ for ElementTree? This should be easy because ElementTree already has a iter() method that behaves as needed (goes over all elements including root). Would iteration + perhaps clearer documentation solve most of the problem? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21028 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21128] testing stdlib and compatibility with pypy
Changes by Brett Cannon br...@python.org: -- nosy: +brett.cannon ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21128 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21028] ElementTree objects should support all the same methods as Element objects
Stefan Behnel added the comment: How about just making a sensibly-behaving __iter__ for ElementTree? Well, the problem is to determine what sensibly-behaving is. I can see three options. 1) tree.iter() == tree.getroot().iter() 2) iter(tree.getroot()) 3) iter([tree.getroot()]) The second option feels plain wrong to me. The last one would allow the extension towards PI/comment siblings, as I described before. There isn't currently a way to get at them (which doesn't hurt, because ET doesn't currently even pass them through from its parser, as discussed in issue 9521). Once there is a way in ET to parse them in (as in lxml), making ElementTree objects iterable would nicely solve the issue of how to process them afterwards. It's not the only solution for that problem, though, adding a .gettoplevel() method would similarly work. Thus, either 1) or 3) would fit the API, with the downside of 1) being that it's just completely redundant functionality and I don't consider saving 7 simple characters worth the increase in API overhead. That leaves 3) as an option. It's nice because the iteration then works on the same axis as for Elements, so x.iter() and iter(x) would behave in the same way for both classes. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21028 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21134] Segfault when stringifying UnicodeEncodeError (or UnicodeDecodeError) created with __new__()
New submission from Marek Kowalski: I'm attaching a minimal script to reproduce. I tested only with 3.2 and 2.7 versions. Its possible that it has been fixed since 3.2. -- components: Unicode files: segv.py messages: 215384 nosy: Marek.Kowalski, ezio.melotti, haypo priority: normal severity: normal status: open title: Segfault when stringifying UnicodeEncodeError (or UnicodeDecodeError) created with __new__() type: crash versions: Python 2.7, Python 3.2 Added file: http://bugs.python.org/file34702/segv.py ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21134 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21124] _struct module compilation error under Cygwin 1.7.17 on Python 3.4
dellair jie added the comment: Yamamoto, Thanks, the patch you offered did make the _struct error disappeared. I will do a bit more testing. Dellair -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21124 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21134] Segfault when stringifying UnicodeEncodeError (or UnicodeDecodeError) created with __new__()
STINNER Victor added the comment: Python 3.2 is not getting bugfixes anymore, only 3.4 and 3.5 (and 2.7). -- versions: +Python 3.4, Python 3.5 -Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21134 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21120] PyArena type is used in headers from the limited API
Changes by Jesús Cea Avión j...@jcea.es: -- nosy: +jcea ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21120 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21118] str.translate is absurdly slow in majority of use cases (takes up to 60x longer than similar functions)
Antoine Pitrou added the comment: bytes.translate() is much faster because it builds a C array of 256 items to fast table lookup, whereas str.translate() requires a Python dict lookup for each character, which is much slower. It should be easy to devise a simple hash table for the common case of one-to-one translation (and also deletion). -- nosy: +pitrou ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21118 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17390] display python version on idle title bar
bagrat lazaryan added the comment: guys, the filename should be the first thing on the titlebar of idle editor window. that way, on taskbar, one can see the file that's open in editor. i suggest the format of editor's title be changed to: xxx.py - python x.y.z - path or whatever you will as separator between elements. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17390 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21134] Segfault when stringifying UnicodeEncodeError (or UnicodeDecodeError) created with __new__()
Roundup Robot added the comment: New changeset 140c5da3dc82 by Benjamin Peterson in branch '3.4': bail in unicode error's __str__ methods if the objects are not properly initialized (closes #21134) http://hg.python.org/cpython/rev/140c5da3dc82 New changeset afa7fb2cbe3b by Benjamin Peterson in branch '2.7': bail in unicode error's __str__ methods if the objects are not properly initialized (closes #21134) http://hg.python.org/cpython/rev/afa7fb2cbe3b New changeset 0aeaea247d7d by Benjamin Peterson in branch 'default': merge 3.4 (#21134) http://hg.python.org/cpython/rev/0aeaea247d7d -- nosy: +python-dev resolution: - fixed stage: - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21134 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21134] Segfault when stringifying UnicodeEncodeError (or UnicodeDecodeError) created with __new__()
STINNER Victor added the comment: Benjamin: I don't like your change. You silently ignore the error. I would prefer to raise an exception on str(exc) if the Unicode exception object was not properly initialized. -- resolution: fixed - status: closed - open ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21134 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21134] Segfault when stringifying UnicodeEncodeError (or UnicodeDecodeError) created with __new__()
Benjamin Peterson added the comment: I don't care as long as it doesn't segfault. -- nosy: +benjamin.peterson ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21134 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21019] PyMethodDef ml_name is char* instead of const char*
Changes by Tshepang Lekhonkhobe tshep...@gmail.com: -- nosy: +tshepang ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21019 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21027] difflib new cli interface
Changes by Tshepang Lekhonkhobe tshep...@gmail.com: -- nosy: +tshepang ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21027 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21034] Python docs reference the Distribute package which has been deprecated in favor of Setuptools
Changes by Tshepang Lekhonkhobe tshep...@gmail.com: -- nosy: +tshepang ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21034 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17846] Building Python on Windows - Supplementary info
Terry J. Reedy added the comment: Since a debug build (F7 in VS) is the only thing I have ever built, or that a developer like me needs to build, that is not a limitation. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17846 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17390] display python version on idle title bar
Terry J. Reedy added the comment: Bagrat, are you on XP by any chance? In Win7, all windows for a program are attached to one program icon on the taskbar, which has the program name. When I hover over the program icon, mini views of each window are displayed, with each window view showing about 30 chars of the window title. For instance Python 3.4.0: CallTipsWindow, which is fine for me. Moving the mouse over the mini window displays the complete title. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17390 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20942] _frozen_importlib should not have a __file__ attribute
Boštjan Mejak added the comment: No one interested in fixing this anymore, despite the patch and all? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20942 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20942] _frozen_importlib should not have a __file__ attribute
Brett Cannon added the comment: My Python free time is on Fridays, which is when I plan to make a final call and either apply to Python 3.4 and 3.5 or just Python 3.5. -- assignee: - brett.cannon ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20942 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21135] Remove useless _vb_pattern parameter in cgi.valid_boundary
New submission from Eijebong: The parameter _vb_pattern parameter in cgi.valid_boundary has no reason to exist since it's forced to a value later. -- components: Library (Lib) files: valid_boundary.patch keywords: patch messages: 215396 nosy: Eijebong priority: normal severity: normal status: open title: Remove useless _vb_pattern parameter in cgi.valid_boundary type: enhancement versions: Python 3.4 Added file: http://bugs.python.org/file34703/valid_boundary.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21135 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21130] equivalent functools.partial instances should compare equal
Raymond Hettinger added the comment: What is the use case? What would be the criteria for comparing functions? Would the func_name have to match? Would the func_defaults have to match? Would the f.__code__.co_names have to match (the internal variable names? Do the function attributes in f.__dict__ have to match? Does the func.__doc__ have to match? The problem is that functions are complex objects and the equivalence criteria means different things to different people. In the absence of a clear spec that makes sense to most people, object identity is the only sure definition of equivalence. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21130 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19662] smtpd.py should not decode utf-8
Changes by Sreepriya Chalakkal sreepriya1...@gmail.com: Added file: http://bugs.python.org/file34704/switch_while_decode2.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19662 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19640] Dynamically generate the _source attribute of namedtuple to save memory)
Raymond Hettinger added the comment: Victor, I don't think the added complexity is worth 2k per named tuple class. Every time I've gone down the path of lazy evaluation, I've paid an unexpected price for it down the road. If the savings were huge, it might be worth it, but that isn't the case here. This isn't really different than proposing that all docstring be in a separate module to be lazily loaded only when people look at help. -- resolution: - rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19640 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17390] display python version on idle title bar
bagrat lazaryan added the comment: terry, i'm on 7 but i have my taskbar configured not to combine buttons. see the screenshot attached. (does anyone know why on earth i am not receiving email notifications when someone posts to an issue i have started or i have commented to?) -- Added file: http://bugs.python.org/file34705/taskbar.png ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17390 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17862] itertools.chunks(iterable, size, fill=None)
Raymond Hettinger added the comment: Nothing new is happening in this thread, so I'm closing it for the reasons listed in the other posts. The main issue is that the generic concept of break data into chunks tends to occur is situations where the iterator protocol would be at odds with a clean solution. A reshape() method on lists would be much better suited to the task. -- resolution: - rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17862 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20198] xml.etree.ElementTree.ElementTree.write attribute sorting
bagrat lazaryan added the comment: well... ElementTree.py imports some c accelerators as can be seen at the end of the file. i have no idea how to get to those accelerators, and even if i had, i don't think i would make anything of them. as far as the pure python code concerns in the rest of ElementTree.py, it suffices not to sort the items in _serialize_xml: line 929 of ElementTree.py: -for k, v in sorted(items): # lexical order +for k, v in items: i gather something similar must be done in c accelerators. (by the way, does anyone know why i am not receiving email notifications when someone posts to an issue i have started or i have commented to?) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20198 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20198] xml.etree.ElementTree.ElementTree.write attribute sorting
Changes by bagrat lazaryan bagra...@live.com: -- versions: +Python 3.4 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20198 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21130] equivalent functools.partial instances should compare equal
Changes by Raymond Hettinger raymond.hettin...@gmail.com: -- Removed message: http://bugs.python.org/msg215397 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21130 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21117] inspect.signature: inaccuracies for partial functions
Yury Selivanov added the comment: Please review the attached patch. Here's the new partial signature semantics: foo(a, b, /, c, d, *args, e) partial(foo, 10) - (b, /, c, d, *args, e) partial(foo, 10, c=11) - (b, /, *, c=11, d, e) partial(foo, 10, 20, 30) - (d, *args, e) partial(foo, 10, 20, 30, 40, 50) - (*args, e) partial(foo, 10, 20, c=20) - (*, c=20, d, e) Good news: 1. no more special attributes and other hidden hacks. 2. only with this patch we properly support functools.partial. So this is definitely something we can classify as a bug fix and push in 3.4.1. -- keywords: +patch Added file: http://bugs.python.org/file34706/signature_partial_fix_01.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21117 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21130] equivalent functools.partial instances should compare equal
R. David Murray added the comment: But since the two partial instances are (conceptually, I don't care how they are implemented) two separate functions, then reasoning by analogy from two identical functions not comparing equal, I would expect two partial instances to not compare equal. -- nosy: +r.david.murray ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21130 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21116] Failure to create multiprocessing shared arrays larger than 50% of memory size under linux
Charles-François Natali added the comment: Zero-filling mmap's backing file isn't really optimal: why not use truncate() instead? This way, it'll avoid completely I/O on filesystems that support sparse files, and should still work on FS that don't. -- nosy: +neologix ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21116 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21130] equivalent functools.partial instances should compare equal
R. David Murray added the comment: Of course, as soon as I hit send, I had second thoughts :). I guess a partial is a binding, not a function. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21130 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17390] display python version on idle title bar
Ezio Melotti added the comment:
Other editors (e.g. Kate) use the format filename - editor name. This is
common for other applications as well (e.g. Firefox uses page title - Mozilla
Firefox), so the request seems reasonable to me.
If you want to go the extra mile you could have an option to decide if the
filename should be first or not or even a format string that would allow users
to fully configure the titlebar (e.g. {file} - IDLE {version}), but that
might be out of the scope of this issue. FWIW I don't think Kate has an option
for that, but it has one to show the full path in titlebar.
(@bagrat: assuming your email address is correct, if you are not getting
notifications they might have ended up in the spam folder.)
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[issue21116] Failure to create multiprocessing shared arrays larger than 50% of memory size under linux
Médéric Boquien added the comment: If I remember correctly the problem is that some OS like linux (and probably others) do not really allocate space until something is written. If that's the case then the process may get killed later on when it writes something in the array. Here is a quick example: $ truncate -s 1T test.file $ ls -lh test.file -rw-r--r-- 1 mederic users 1.0T Apr 2 23:10 test.file $ df -h Filesystem Size Used Avail Use% Mounted on /dev/sdb1 110G 46G 59G 44% /home -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21116 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21116] Failure to create multiprocessing shared arrays larger than 50% of memory size under linux
Richard Oudkerk added the comment: Using truncate() to zero extend is not really portable: it is only guaranteed on XSI-compliant POSIX systems. Also, the FreeBSD man page for mmap() has the following warning: WARNING! Extending a file with ftruncate(2), thus creating a big hole, and then filling the hole by modifying a shared mmap() can lead to severe file fragmentation. In order to avoid such fragmentation you should always pre-allocate the file's backing store by write()ing zero's into the newly extended area prior to modifying the area via your mmap(). The fragmentation problem is especially sensitive to MAP_NOSYNC pages, because pages may be flushed to disk in a totally random order. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21116 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21136] fractions.Fraction.__pow__ does unneeded renormalization
New submission from William Ehlhardt: The following Python runs unnecessarily slowly: import fractions fractions.Fraction(6249919, 625) ** 89993 The problem here is that Fraction.__pow__ constructs a new Fraction() to return, and Fraction.__new__ tries to gcd to normalize the numerator/denominator. The gcd is very, very slow, and more to the point, unnecessary; raising a normalized fraction to an integer power will always yield another normalized fraction. fractions.Fraction.__pow__ should use this trick to make the code snippet above fast. -- components: Library (Lib) messages: 215409 nosy: Orborde priority: normal severity: normal status: open title: fractions.Fraction.__pow__ does unneeded renormalization type: performance versions: Python 2.7, Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21136 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21136] fractions.Fraction.__pow__ does unneeded renormalization
Changes by Ezio Melotti ezio.melo...@gmail.com: -- nosy: +ezio.melotti, mark.dickinson, rhettinger stage: - needs patch versions: +Python 3.5 -Python 2.7, Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21136 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14156] argparse.FileType for '-' doesn't work for a mode of 'rb'
paul j3 added the comment: There are a couple of complications to using 'fileno'. We probably don't want to close 'sys.stdin' or 'sys.stdout' (not even if they are redirected to other files?). That means using: open(sys.stdin.fileno(), ..., closefd=False) 'closefd', on the other hand, has to be True for string file specifications. But in 'test_argparse.py', 'sys.stdout' is redirected to an 'io.StringIO'. This has many of the same features as an open file, but 'fileno' is not implemented. So the TypeFile probably needs to make an exception for this case. I don't how this will play with a 'BytesIO' for 'wb' cases. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14156 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1191964] asynchronous Subprocess
Josiah Carlson added the comment: Had some time to work on this today. I was missing something in my earlier versions of the code, and have managed to get overlapped IOs to work, so at least I'm not quite so far behind the dozen or so core developers who know more about the Windows pieces than I do. Richard, thank you for the post, I wasn't looking hard enough for how to get overlapped IOs to work, and your message made me look harder. On Linux, it is trivial to support the blocking communicate() and non-blocking additions. There's only one weirdness, and that's the fcntl bit flipping during write. On Windows, it's not all that difficult to switch to using overlapped IOs for *all* writes, and maybe even for communicate()-based reads, which would remove the need for threads. Ironically enough, non-blocking reads actually *don't* require overlapped IO thanks to PeekNamedPipe, which could even be used to cut the number of extra threads from 2 to 1 in communicate(). Now that I've got it working, I can do one of the following (from least changes to the most): 1. Add a nonblocking flag, which pre-flips the fcntl bit in Linux and uses overlapped IO on writes in Windows - this would be documented to remove the ability to call communicate() 2. As an alternative to #1, I can create a new class that lacks the communicate() method and adds the non-blocking methods 3. Gut/rewrite the Windows-based communicate() function to use overlapped IO on everything, removing the threads, and making it at least superficially like Linux (prepare your overlapped IO, then use WaitForMultipleObjects() to multiplex), while also adding the non-blocking methods Unless someone brings up an important counterpoint, I'll work on #3 tonight or tomorrow evening to get an initial code/test patch, with docs coming shortly after (if not immediately). -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue1191964 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21136] fractions.Fraction.__pow__ does unneeded renormalization
Raymond Hettinger added the comment: This looks easily doable. -- assignee: - rhettinger keywords: +easy ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21136 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21137] Better repr for threading.Lock()
New submission from Raymond Hettinger: It is really nice to have the open/closed status in the __repr__ of file objects: open file 'data.txt', mode 'r' at 0x102c8ec90 closed file 'data.txt', mode 'r' at 0x102c8ec90 I would like to have the same for locks: unlocked thread.lock object at 0x1002b1330 locked thread.lock object at 0x1002b1330 This would be nice in logs and tracebacks for example. -- components: Library (Lib) keywords: easy messages: 215413 nosy: rhettinger priority: normal severity: normal status: open title: Better repr for threading.Lock() type: enhancement versions: Python 3.5 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21137 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21136] fractions.Fraction.__pow__ does unneeded renormalization
Changes by Raymond Hettinger raymond.hettin...@gmail.com: -- keywords: +patch Added file: http://bugs.python.org/file34707/fraction_pow.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21136 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21138] mimetypes.MimeType UnicodeDecodeError
New submission from tanbro: when new a mimetypes.MimeType instance in a my Windows, whose default coding is mbcs, UnicdeDecodeError occurred. Python 2.7.6 (default, Nov 10 2013, 19:24:18) [MSC v.1500 32 bit (Intel)] on win 32 Type help, copyright, credits or license for more information. from mimetypes import MimeTypes mt = MimeTypes() Traceback (most recent call last): File stdin, line 1, in module File D:\Python27\lib\mimetypes.py, line 66, in __init__ init() File D:\Python27\lib\mimetypes.py, line 358, in init db.read_windows_registry() File D:\Python27\lib\mimetypes.py, line 258, in read_windows_registry for subkeyname in enum_types(hkcr): File D:\Python27\lib\mimetypes.py, line 249, in enum_types ctype = ctype.encode(default_encoding) # omit in 3.x! UnicodeDecodeError: 'ascii' codec can't decode byte 0xc7 in position 8: ordinal not in range(128) i think this error was caused by the code in mimetypes.py's line 256 default_encoding = sys.getdefaultencoding() if change this line to: default_encoding = sys.getfilesystemencoding() such error will be resolved -- components: Library (Lib) messages: 215414 nosy: tanbro priority: normal severity: normal status: open title: mimetypes.MimeType UnicodeDecodeError type: behavior versions: Python 2.7 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21138 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue20375] ElementTree: Document handling processing instructions
Nikolaus Rath added the comment: Thanks for your feedback! I've attached an updated patch. -- Added file: http://bugs.python.org/file34708/issue20375.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20375 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
