pylib/py.test 1.3.4: fixes and new native traceback option
pylib/py.test 1.3.4 is a minor maintenance release mostly containing bug fixes and a new --tb=native traceback option to show normal Python standard tracebacks instead of the py.test enhanced tracebacks. See below for more change info and http://pytest.org for more general information on features and configuration of the testing tool. Thanks to the issue reporters and generally to Ronny Pfannschmidt for help. cheers, holger krekel Changes between 1.3.3 and 1.3.4 == - fix issue111: improve install documentation for windows - fix issue119: fix custom collectability of __init__.py as a module - fix issue116: --doctestmodules work with __init__.py files as well - fix issue115: unify internal exception passthrough/catching/GeneratorExit - fix issue118: new --tb=native for presenting cpython-standard exceptions -- -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations/
OpenOpt 0.31, FuncDesigner 0.21, DerApproximator 0.21
Hi all, I'm glad to inform you about new releases of our completely free (BSD license) cross-platform software, written using Python language and NumPy: OpenOpt 0.31 (numerical optimization), FuncDesigner 0.21 (automatic differentiation, modelling, interpolation, integration), DerApproximator 0.21 (finite-differences derivatives approximation). For release details see http://forum.openopt.org/viewtopic.php?id=299 or visit our homepage http://openopt.org Regards, Dmitrey -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations/
python call a procedure at the specified time
Hi, I have a python script running behind the scene,and I need it to call a method on sunday 9 o'clock. I get an idea,that I get the current time,and calculate the seconds to sunday 9 o'clock, then sleep these seconds and call my method,I think there could be an elegant way to resolve this. Regards, -- http://mail.python.org/mailman/listinfo/python-list
Re: python call a procedure at the specified time
are you looking for something like cron? On Wed, Sep 15, 2010 at 11:43 AM, Von von...@gmail.com wrote: Hi, I have a python script running behind the scene,and I need it to call a method on sunday 9 o'clock. I get an idea,that I get the current time,and calculate the seconds to sunday 9 o'clock, then sleep these seconds and call my method,I think there could be an elegant way to resolve this. Regards, -- http://mail.python.org/mailman/listinfo/python-list -- Nitin Pawar -- http://mail.python.org/mailman/listinfo/python-list
Re: python call a procedure at the specified time
Hi Nitin,I need a python solution for that. On Wed, Sep 15, 2010 at 2:15 PM, Nitin Pawar nitinpawar...@gmail.comwrote: are you looking for something like cron? On Wed, Sep 15, 2010 at 11:43 AM, Von von...@gmail.com wrote: Hi, I have a python script running behind the scene,and I need it to call a method on sunday 9 o'clock. I get an idea,that I get the current time,and calculate the seconds to sunday 9 o'clock, then sleep these seconds and call my method,I think there could be an elegant way to resolve this. Regards, -- http://mail.python.org/mailman/listinfo/python-list -- Nitin Pawar -- http://mail.python.org/mailman/listinfo/python-list
Re: python call a procedure at the specified time
I think to do so either you will need to schedule a cron or write a daemon process which will run continuously. Assuming that its running only once a day or say timely manner daemon will be a costly affair for system resources To schedule crons for python, this might be useful (using yaml) http://code.google.com/appengine/docs/python/config/cron.html#About_cron_yaml Thanks, Nitin On Wed, Sep 15, 2010 at 11:54 AM, Von von...@gmail.com wrote: Hi Nitin,I need a python solution for that. On Wed, Sep 15, 2010 at 2:15 PM, Nitin Pawar nitinpawar...@gmail.comwrote: are you looking for something like cron? On Wed, Sep 15, 2010 at 11:43 AM, Von von...@gmail.com wrote: Hi, I have a python script running behind the scene,and I need it to call a method on sunday 9 o'clock. I get an idea,that I get the current time,and calculate the seconds to sunday 9 o'clock, then sleep these seconds and call my method,I think there could be an elegant way to resolve this. Regards, -- http://mail.python.org/mailman/listinfo/python-list -- Nitin Pawar -- Nitin Pawar -- http://mail.python.org/mailman/listinfo/python-list
Re: String formatting with the format string syntax
Andre Alexander Bell wrote:
On 09/14/2010 08:20 PM, Miki wrote:
You can use ** syntax:
english = {'hello':'hello'}
s.format(**english)
Thanks for your answer. Actually your answer tells me that my example
was misleading. Consider the template
s = 'A template with {variable1} and {variable2} placeholders.'
I'm seeking a way to extract the named placesholders, i.e. the names
'variable1' and 'variable2' from the template. I'm not trying to put in
values for them.
I hope this is clearer.
s = 'A template with {variable1} and {variable2} placeholders.'
[name for _, name, _, _ in s._formatter_parser() if name is not None]
['variable1', 'variable2']
Peter
--
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google app engine _method? put(self):
How can I get the request passed on to my views when using this
middleware?
class RestHTTPMiddleware(object):
def __init__(self, app):
self.app = app
def __call__(self, environ, start_response):
request = Request(environ)
body = StringIO.StringIO(request.body)
method = webapp.Request(environ).get('_method', None)
if method:
environ['REQUEST_METHOD'] = method.upper()
environ['wsgi.input'] = body
return self.app(environ, start_response)
when i test :
class Spot(webapp.RequestHandler):
def put(self):
logging.info(hello from put %s, self.request.get(author))
the following is logged: spot put but with no value.
This is how it's implemented:
def main():
app = webapp.WSGIApplication([
(r'/spot/new/$', Spot),
],
debug=True)
# run_wsgi_app(application)
wsgiref.handlers.CGIHandler().run(RestHTTPMiddleware(app))
and this is the form:
form method=post action=/spot/new/
input type=hidden name=_method value=put /
input type=text name=name value= /
input type=submit value=Save /
/form
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Re: python call a procedure at the specified time
Thanks Nitin,I wonder how cron works,does it create a timer thread for each task? On Wed, Sep 15, 2010 at 2:35 PM, Nitin Pawar nitinpawar...@gmail.comwrote: I think to do so either you will need to schedule a cron or write a daemon process which will run continuously. Assuming that its running only once a day or say timely manner daemon will be a costly affair for system resources To schedule crons for python, this might be useful (using yaml) http://code.google.com/appengine/docs/python/config/cron.html#About_cron_yaml Thanks, Nitin On Wed, Sep 15, 2010 at 11:54 AM, Von von...@gmail.com wrote: Hi Nitin,I need a python solution for that. On Wed, Sep 15, 2010 at 2:15 PM, Nitin Pawar nitinpawar...@gmail.comwrote: are you looking for something like cron? On Wed, Sep 15, 2010 at 11:43 AM, Von von...@gmail.com wrote: Hi, I have a python script running behind the scene,and I need it to call a method on sunday 9 o'clock. I get an idea,that I get the current time,and calculate the seconds to sunday 9 o'clock, then sleep these seconds and call my method,I think there could be an elegant way to resolve this. Regards, -- http://mail.python.org/mailman/listinfo/python-list -- Nitin Pawar -- Nitin Pawar -- http://mail.python.org/mailman/listinfo/python-list
Re: python call a procedure at the specified time
I have read the cron man page just now,It says that cron wakes up every minute to check task. I will try install/uninstall with cron. Cheers, On Wed, Sep 15, 2010 at 3:25 PM, Von von...@gmail.com wrote: Thanks Nitin,I wonder how cron works,does it create a timer thread for each task? On Wed, Sep 15, 2010 at 2:35 PM, Nitin Pawar nitinpawar...@gmail.comwrote: I think to do so either you will need to schedule a cron or write a daemon process which will run continuously. Assuming that its running only once a day or say timely manner daemon will be a costly affair for system resources To schedule crons for python, this might be useful (using yaml) http://code.google.com/appengine/docs/python/config/cron.html#About_cron_yaml Thanks, Nitin On Wed, Sep 15, 2010 at 11:54 AM, Von von...@gmail.com wrote: Hi Nitin,I need a python solution for that. On Wed, Sep 15, 2010 at 2:15 PM, Nitin Pawar nitinpawar...@gmail.comwrote: are you looking for something like cron? On Wed, Sep 15, 2010 at 11:43 AM, Von von...@gmail.com wrote: Hi, I have a python script running behind the scene,and I need it to call a method on sunday 9 o'clock. I get an idea,that I get the current time,and calculate the seconds to sunday 9 o'clock, then sleep these seconds and call my method,I think there could be an elegant way to resolve this. Regards, -- http://mail.python.org/mailman/listinfo/python-list -- Nitin Pawar -- Nitin Pawar -- http://mail.python.org/mailman/listinfo/python-list
Re: python call a procedure at the specified time
cron is daemon running which maps the tasks with the frequency if you want to run a task at a specific time, you can schedule it for the same if you need any help, ping on gtalk, can help you out Thanks, Nitin On Wed, Sep 15, 2010 at 1:05 PM, Von von...@gmail.com wrote: I have read the cron man page just now,It says that cron wakes up every minute to check task. I will try install/uninstall with cron. Cheers, On Wed, Sep 15, 2010 at 3:25 PM, Von von...@gmail.com wrote: Thanks Nitin,I wonder how cron works,does it create a timer thread for each task? On Wed, Sep 15, 2010 at 2:35 PM, Nitin Pawar nitinpawar...@gmail.comwrote: I think to do so either you will need to schedule a cron or write a daemon process which will run continuously. Assuming that its running only once a day or say timely manner daemon will be a costly affair for system resources To schedule crons for python, this might be useful (using yaml) http://code.google.com/appengine/docs/python/config/cron.html#About_cron_yaml Thanks, Nitin On Wed, Sep 15, 2010 at 11:54 AM, Von von...@gmail.com wrote: Hi Nitin,I need a python solution for that. On Wed, Sep 15, 2010 at 2:15 PM, Nitin Pawar nitinpawar...@gmail.comwrote: are you looking for something like cron? On Wed, Sep 15, 2010 at 11:43 AM, Von von...@gmail.com wrote: Hi, I have a python script running behind the scene,and I need it to call a method on sunday 9 o'clock. I get an idea,that I get the current time,and calculate the seconds to sunday 9 o'clock, then sleep these seconds and call my method,I think there could be an elegant way to resolve this. Regards, -- http://mail.python.org/mailman/listinfo/python-list -- Nitin Pawar -- Nitin Pawar -- Nitin Pawar -- http://mail.python.org/mailman/listinfo/python-list
Re: String formatting with the format string syntax
Peter Otten wrote:
Andre Alexander Bell wrote:
On 09/14/2010 08:20 PM, Miki wrote:
You can use ** syntax:
english = {'hello':'hello'}
s.format(**english)
Thanks for your answer. Actually your answer tells me that my example
was misleading. Consider the template
s = 'A template with {variable1} and {variable2} placeholders.'
I'm seeking a way to extract the named placesholders, i.e. the names
'variable1' and 'variable2' from the template. I'm not trying to put in
values for them.
I hope this is clearer.
s = 'A template with {variable1} and {variable2} placeholders.'
[name for _, name, _, _ in s._formatter_parser() if name is not None]
['variable1', 'variable2']
Caveat: the format spec may contain names, too.
Here's an attempt to take that into account:
def extract_names(t, recurse=1):
for _, name, fmt, _ in t._formatter_parser():
if name is not None:
yield name
if recurse and fmt is not None:
for name in extract_names(fmt, recurse-1):
yield name
t = before {one:{two}{three}} after
print(t)
for name in extract_names(t):
print(name)
list(extract_names({one:{two}{three}}))
['one', 'two', 'three']
Don't expect correct results for illegal formats:
list(extract_names({one:{two:{three}}}))
['one', 'two']
{one:{two:{three}}}.format(one=1, two=2, three=3)
Traceback (most recent call last):
File stdin, line 1, in module
ValueError: Max string recursion exceeded
Duplicate names may occur:
list(extract_names({one} {one} {one}))
['one', 'one', 'one']
Positional arguments are treated like names:
list(extract_names({0} {1} {0}))
['0', '1', '0']
list(extract_names({} {} {}))
['', '', '']
Peter
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Re: String formatting with the format string syntax
On 09/15/2010 10:00 AM, Peter Otten wrote: def extract_names(t, recurse=1): for _, name, fmt, _ in t._formatter_parser(): if name is not None: yield name if recurse and fmt is not None: for name in extract_names(fmt, recurse-1): yield name Thanks Peter, I very much like this generator solution. It will work for all situations I can currently think of. However, one thing remains. It is based on the _format_parser method. And as I wrote in my original post this one - since it starts with _ - suggests to me to better not be used. So if using this method is completely ok, why does it start with _, why is it almost undocumented? Or did I miss something, some docs somewhere? Best regards Andre -- http://mail.python.org/mailman/listinfo/python-list
Re: String formatting with the format string syntax
Andre Alexander Bell wrote: On 09/15/2010 10:00 AM, Peter Otten wrote: def extract_names(t, recurse=1): for _, name, fmt, _ in t._formatter_parser(): if name is not None: yield name if recurse and fmt is not None: for name in extract_names(fmt, recurse-1): yield name Thanks Peter, I very much like this generator solution. It will work for all situations I can currently think of. However, one thing remains. It is based on the _format_parser method. And as I wrote in my original post this one - since it starts with _ - suggests to me to better not be used. So if using this method is completely ok, why does it start with _, why is it almost undocumented? Or did I miss something, some docs somewhere? Sorry, I really should have read your original post carefully/completely. It would have spared me from finding _formatter_parser() independently... I personally would not be too concerned about the leading underscore, but you can use string.Formatter().parse(template) instead. Peter -- http://mail.python.org/mailman/listinfo/python-list
Accessing windoze file attributes
Environment: X86, 1Gb RAM, Win XP, latest SP, Excel 2003. Hi, can anyone direct a relative newbie to the best source of info? I am writing my own backup app in Python 2.5.2 (all my company will allow me to use) using IDLE. I intend to run this app daily via the Task Scheduler to back up a mission-critical spreadsheet that only I use. It works well enough, but now I want to make it sensitive to the A attribute (only backup the file if it is set), and update it afterwards (unset it). This will help me avoid wasted disk due to needless backups. I have searched the inter-web and not found any info on how to do access/alter Windows file attributes. Please can someone direct me to a web page with suitable info (preferably with code snyppyts)? Many thanks, in advance. -- Douglas -- http://mail.python.org/mailman/listinfo/python-list
ANN: OpenOpt 0.31, FuncDesigner 0.21, DerApproximator 0.21
Hi all, I'm glad to inform you about new releases of our completely free (BSD license) cross-platform software, written using Python language and NumPy: OpenOpt 0.31 (numerical optimization), FuncDesigner 0.21 (automatic differentiation, modelling, interpolation, integration), DerApproximator 0.21 (finite-differences derivatives approximation). For release details see http://forum.openopt.org/viewtopic.php?id=299 or visit our homepage http://openopt.org Regards, Dmitrey -- http://mail.python.org/mailman/listinfo/python-list
python cxfreeze package pyqt app lost icon and tray icon
Hi, Here is my command: cxfreeze --target-dir=AutoOrder gui.py --base-name=D:\Python31\Lib\site-packages\cx_Freeze\bases\Win32GUI.exe --include-path=. -z icon.jpg Both app icon and tray icon used icon.jpg Regards, -- http://mail.python.org/mailman/listinfo/python-list
Re: String formatting with the format string syntax
On 09/15/2010 10:48 AM, Peter Otten wrote: I personally would not be too concerned about the leading underscore, but you can use string.Formatter().parse(template) instead. Thanks for this pointer. I like it this way. So if I now combine your generator with your suggestion, I end up with something like this: def extract_names(t, recurse=1): import string for _, name, fmt, _ in string.Formatter().parse(t): if name is not None: yield name if recurse and fmt is not None: for name in extract_names(fmt, recurse-1): yield name Pretty cool. Thanks a lot. Andre -- http://mail.python.org/mailman/listinfo/python-list
Re: help with calling a static method in a private class
On Sep 14, 4:38 pm, de...@web.de (Diez B. Roggisch) wrote:
lallouslall...@lgwm.org writes:
How can I keep the class private and have the following work:
[code]
class __internal_class(object):
@staticmethod
def meth1(s):
print meth1:, s
@staticmethod
def meth2(s):
print meth2:,
__internal_class.meth1(s)
x = __internal_class()
x.meth2('sdf')
[/code]
By not using a double underscore. It is effectless on classes anyway
(they are not hidden because of that).
And additionally, but simply not using staticmethods at all. It's a
rather obscure feature ofpython- usually, classmethods are what is
considered a static method in other languages. And with that, even your
double underscores work:
class __internal_class(object):
@classmethod
def meth1(cls, s):
print meth1:, s
@classmethod
def meth2(cls, s):
print meth2:,
cls.meth1(s)
x = __internal_class()
x.meth2('sdf')
Diez
Thanks, that does the trick.
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Re: python call a procedure at the specified time
I used timer way,and I found that threading.Timer didn't work with PyQt,so I used QTimer instead,and it did work. On Wed, Sep 15, 2010 at 3:44 PM, Nitin Pawar nitinpawar...@gmail.comwrote: cron is daemon running which maps the tasks with the frequency if you want to run a task at a specific time, you can schedule it for the same if you need any help, ping on gtalk, can help you out Thanks, Nitin On Wed, Sep 15, 2010 at 1:05 PM, Von von...@gmail.com wrote: I have read the cron man page just now,It says that cron wakes up every minute to check task. I will try install/uninstall with cron. Cheers, On Wed, Sep 15, 2010 at 3:25 PM, Von von...@gmail.com wrote: Thanks Nitin,I wonder how cron works,does it create a timer thread for each task? On Wed, Sep 15, 2010 at 2:35 PM, Nitin Pawar nitinpawar...@gmail.comwrote: I think to do so either you will need to schedule a cron or write a daemon process which will run continuously. Assuming that its running only once a day or say timely manner daemon will be a costly affair for system resources To schedule crons for python, this might be useful (using yaml) http://code.google.com/appengine/docs/python/config/cron.html#About_cron_yaml Thanks, Nitin On Wed, Sep 15, 2010 at 11:54 AM, Von von...@gmail.com wrote: Hi Nitin,I need a python solution for that. On Wed, Sep 15, 2010 at 2:15 PM, Nitin Pawar nitinpawar...@gmail.comwrote: are you looking for something like cron? On Wed, Sep 15, 2010 at 11:43 AM, Von von...@gmail.com wrote: Hi, I have a python script running behind the scene,and I need it to call a method on sunday 9 o'clock. I get an idea,that I get the current time,and calculate the seconds to sunday 9 o'clock, then sleep these seconds and call my method,I think there could be an elegant way to resolve this. Regards, -- http://mail.python.org/mailman/listinfo/python-list -- Nitin Pawar -- Nitin Pawar -- Nitin Pawar -- http://mail.python.org/mailman/listinfo/python-list
Re: Accessing windoze file attributes
Douglas mumm...@gmail.com writes: Hi, can anyone direct a relative newbie to the best source of info? I am writing my own backup app in Python 2.5.2 (all my company will allow me to use) using IDLE. I intend to run this app daily via the Task Scheduler to back up a mission-critical spreadsheet that only I use. It works well enough, but now I want to make it sensitive to the A attribute (only backup the file if it is set), and update it afterwards (unset it). This will help me avoid wasted disk due to needless backups. I have searched the inter-web and not found any info on how to do access/alter Windows file attributes. Please can someone direct me to a web page with suitable info (preferably with code snyppyts)? No windows nowhere here, but os.stat should be your friend. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Accessing windoze file attributes
On Wed, Sep 15, 2010 at 4:51 AM, Douglas mumm...@gmail.com wrote: Environment: X86, 1Gb RAM, Win XP, latest SP, Excel 2003. Hi, can anyone direct a relative newbie to the best source of info? I am writing my own backup app in Python 2.5.2 (all my company will allow me to use) using IDLE. I intend to run this app daily via the Task Scheduler to back up a mission-critical spreadsheet that only I use. It works well enough, but now I want to make it sensitive to the A attribute (only backup the file if it is set), and update it afterwards (unset it). This will help me avoid wasted disk due to needless backups. I have searched the inter-web and not found any info on how to do access/alter Windows file attributes. Please can someone direct me to a web page with suitable info (preferably with code snyppyts)? http://code.activestate.com/recipes/303343-changing-file-attributes-on-windows/ -- http://mail.python.org/mailman/listinfo/python-list
30 is True
Hi, I am not sure how to interprete this, in the interactive mode: 30 is True False (30) is True True 3 (0 is True) True Why did I get the first 'False'? I'm a little confused. Thanks in advance for anybody who shed some light on this. YL -- http://mail.python.org/mailman/listinfo/python-list
Re: Accessing windoze file attributes
In message 8dc0fa8e-f0e6-4603-9283-186551597...@a19g2000vbi.googlegroups.com, Douglas wrote: It works well enough, but now I want to make it sensitive to the A attribute (only backup the file if it is set), and update it afterwards (unset it). This will help me avoid wasted disk due to needless backups. Why reinvent rsync? -- http://mail.python.org/mailman/listinfo/python-list
Re: distutils, cygwin, 'not a regular file'
In message 8faqj0fno...@mid.individual.net, Paul Watson wrote: ' not a regular file -- skipping ' not a regular file -- skipping ' not a regular file -- skipping Just a guess, is the file it’s complaining about named “'”? -- http://mail.python.org/mailman/listinfo/python-list
Re: 30 is True
Because is operator take precedence on operator . Le Wed, 15 Sep 2010 05:34:06 -0700 (PDT), Yingjie Lan lany...@yahoo.com a écrit : Hi, I am not sure how to interprete this, in the interactive mode: 30 is True False (30) is True True 3 (0 is True) True Why did I get the first 'False'? I'm a little confused. Thanks in advance for anybody who shed some light on this. YL -- http://mail.python.org/mailman/listinfo/python-list
Re: 30 is True
Yingjie Lan wrote: I am not sure how to interprete this, in the interactive mode: 30 is True False (30) is True True 3 (0 is True) True Why did I get the first 'False'? I'm a little confused. http://docs.python.org/reference/expressions.html#notin Unlike C, all comparison operations in Python have the same priority, which is lower than that of any arithmetic, shifting or bitwise operation. Also unlike C, expressions like a b c have the interpretation that is conventional in mathematics: comparison::= or_expr ( comp_operator or_expr )* comp_operator ::= | | == | = | = | | != | is [not] | [not] in Comparisons yield boolean values: True or False. Comparisons can be chained arbitrarily, e.g., x y = z is equivalent to x y and y = z, except that y is evaluated only once (but in both cases z is not evaluated at all when x y is found to be false). Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: 30 is True
Yingjie Lan writes: I am not sure how to interprete this, in the interactive mode: 30 is True False (30) is True True 3 (0 is True) True Why did I get the first 'False'? I'm a little confused. It is interpreted as equivalent to this: 3 0 and 0 is True False From the language reference at python.org (section 5.9 Comparisons): expressions like a b c have the interpretation that is conventional in mathematics ... Comparisons can be chained arbitrarily, e.g., x y = z is equivalent to x y and y = z, except that y is evaluated only once (but in both cases z is not evaluated at all when x y is found to be false). URL:http://docs.python.org/reference/expressions.html#notin -- http://mail.python.org/mailman/listinfo/python-list
Re: 30 is True
Yingjie Lan wrote: I am not sure how to interprete this, in the interactive mode: 30 is True False (30) is True True 3 (0 is True) True Why did I get the first 'False'? I'm a little confused. Thanks in advance for anybody who shed some light on this. This looks like comparison chaining. `is` is a comparison operator, like ``, and chains of comparisons are handled differently. `a b c` is equivalent to `(a b) and (b c)` Therefore the first expression is testing (3 0) and (0 is True) Mel. -- http://mail.python.org/mailman/listinfo/python-list
Re: 30 is True
Not really true for and is : http://docs.python.org/reference/expressions.html#evaluation-order Operator and operator is are in the same precedence but in group Comparisons : Operators in the same box group left to right (except for comparisons, including tests, which all have the same precedence and chain from left to right — see section Comparisons The important words here are : all have the SAME PRECEDENCE and chain from left to right See also : http://docs.python.org/reference/expressions.html#comparisons So for : 3 0 is True #first evaluation is : 3 0 --- True #second evaluation is : 0 is True --- False (and second evaluation is not result of first one !) Le Wed, 15 Sep 2010 14:47:11 +0200, Michael Ricordeau michael.ricord...@gmail.com a écrit : Because is operator take precedence on operator . Le Wed, 15 Sep 2010 05:34:06 -0700 (PDT), Yingjie Lan lany...@yahoo.com a écrit : Hi, I am not sure how to interprete this, in the interactive mode: 30 is True False (30) is True True 3 (0 is True) True Why did I get the first 'False'? I'm a little confused. Thanks in advance for anybody who shed some light on this. YL -- http://mail.python.org/mailman/listinfo/python-list
Re: 30 is True
As others have said, it's not a matter of precendence. Using the
compiler module
you can see how python actually parses this:
3 (0 is True)
Compare(Const(3), [('', Compare(Const(0), [('is', Name('True'))]))])
No great surprise there.
3 0 is True
Compare(Const(3), [('', Const(0)), ('is', Name('True'))])
As you can see, it's not the same. Two comparisons are being done at
once, not
one comparison on the result of another.
Hope this helps
On 15/09/10 13:34, Yingjie Lan wrote:
Hi,
I am not sure how to interprete this, in the interactive mode:
30 is True
False
(30) is True
True
3 (0 is True)
True
Why did I get the first 'False'? I'm a little confused.
Thanks in advance for anybody who shed some light on this.
YL
--
Jon Siddle, CoreFiling Limited
Software Tools Developer
http://www.corefiling.com
Phone: +44-1865-203192
--
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Re: 30 is True
From: Jon Siddle j...@corefiling.co.uk
Subject: Re: 30 is True
To: python-list@python.org
Date: Wednesday, September 15, 2010, 5:04 PM
As others have said, it's not
a matter of precendence. Using the
compiler module
you can see how python actually parses this:
3 (0 is True)
Compare(Const(3), [('', Compare(Const(0), [('is',
Name('True'))]))])
No great surprise there.
3 0 is True
Compare(Const(3), [('', Const(0)), ('is',
Name('True'))])
As you can see, it's not the same. Two comparisons are
being done at
once, not
one comparison on the result of another.
Hope this helps
Thank you all for nailing down this itching issue for me!
All I can say is: Wow!
You all have a teribly nice day!
Yingjie
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os.path.normcase rationale?
Hi All,
I'm curious as to why, with a file called Foo.txt
os.path.normcase('FoO.txt') will return foo.txt rather than Foo.txt?
Yes, I know the behaviour is documented, but I'm wondering if anyone can
remember the rationale for that behaviour?
cheers,
Chris
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- http://www.simplistix.co.uk
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Re: business date and calendar libraries?
On Sep 13, 3:02 pm, David Robinow drobi...@gmail.com wrote: On Mon, Sep 13, 2010 at 1:06 PM, Chris Withers ch...@simplistix.co.uk wrote: I'm wondering what libraries people would use to answer the following questions relating to business days: - on a less-naive level; same question but taking into account public holidays This depends on which government is oppressing you. - on a horrific level; same question, but taking into account business days of a particular market (NYSE, LSE, etc) This is just an instance of the public holiday case. You need to define the holidays. If you read lisp you might want to look at the emacs calendar module for some hints on how they describe holidays, such as, for a US-biased example, Martin Luther King day is the third Monday in January, Memorial Day is the last Monday in May, Good Friday is not a public holiday but some markets are closed. A good way to do this IMHO is to keep a list of holidays for each year in your program and check if a day is in the list to do your calculations. The list could be automatically generated by an algorithm that figures out all the weird holiday dates or -as is done in many companies- some honcho adds them according to his preference to a database. -- http://mail.python.org/mailman/listinfo/python-list
Re: Numpy: Multiplying arrays of matrices
On 14-Sep-10 19:54 PM, Gregory Ewing wrote: Suppose I have two N+2 dimensional arrays, representing N-d arrays of 2-d matrices. I want to perform matrix multiplication between corresponding matrices in these arrays. I had thought that dot() might do this, but it appears not, because e.g. applying it to two 3-d arrays gives a 4-d array, not another 3-d array. I'd also like to be able to find the inverse of each matrix in one of these arrays, but again, inv() doesn't do what I want -- it only works on 2-d arrays. Any thoughts on how to achieve these things using numpy functions? There is a Matrix sub-class which permit you to do that sort of thimg. Colin W. -- http://mail.python.org/mailman/listinfo/python-list
Deleting widgets from PyQt4 QFormWidget
I'm trying to remove the widgets from the QFormLayout widget from PyQt4. According to the documentation I should be able to use the command .takeAt(int) which will delete the widget from the layout and then return to me the QLayoutWidget. It currently is giving me back the widget, but is not removing it from the layout. At the moment, I'm simply trying to clear out all the widgets on the layout with this: def clearForm(self): print (Clearing) print self.dataForm.rowCount() for i in range(self.dataForm.rowCount()-1, -1, -1): print ., tmp = self.dataForm.takeAt(i) print tmp.widget() tmp = print self.dataForm.rowCount() It goes through each widget on the layout, and prints out the classes .__repr__ on the tmp.widget() line since tmp is a QLayoutWidget. So it's doing the returning part, but they still exist instead of being deleted like the documentation explains. Am I missing a step or is this just broken? I haven't been able to find anything else on this issue yet. If it's broke, is there any potential workaround? I'm using python 2.6.4 and PyQt4 4.7.6 Thanks, Andrew -- http://mail.python.org/mailman/listinfo/python-list
Re: Deleting widgets from PyQt4 QFormWidget
On Sep 15, 9:53 am, Andrew andrewt.h...@gmail.com wrote: I'm trying to remove the widgets from the QFormLayout widget from PyQt4. According to the documentation I should be able to use the command .takeAt(int) which will delete the widget from the layout and then return to me the QLayoutWidget. It currently is giving me back the widget, but is not removing it from the layout. At the moment, I'm simply trying to clear out all the widgets on the layout with this: def clearForm(self): print (Clearing) print self.dataForm.rowCount() for i in range(self.dataForm.rowCount()-1, -1, -1): print ., tmp = self.dataForm.takeAt(i) print tmp.widget() tmp = print self.dataForm.rowCount() It goes through each widget on the layout, and prints out the classes .__repr__ on the tmp.widget() line since tmp is a QLayoutWidget. So it's doing the returning part, but they still exist instead of being deleted like the documentation explains. Am I missing a step or is this just broken? I haven't been able to find anything else on this issue yet. If it's broke, is there any potential workaround? I'm using python 2.6.4 and PyQt4 4.7.6 Thanks, Andrew QLayoutWidget, I meant a QWidgetItem. -- http://mail.python.org/mailman/listinfo/python-list
Re: Numpy: Multiplying arrays of matrices
On Tue, Sep 14, 2010 at 7:54 PM, Gregory Ewing greg.ew...@canterbury.ac.nzwrote: Suppose I have two N+2 dimensional arrays, representing N-d arrays of 2-d matrices. I want to perform matrix multiplication between corresponding matrices in these arrays. I had thought that dot() might do this, but it appears not, because e.g. applying it to two 3-d arrays gives a 4-d array, not another 3-d array. I'd also like to be able to find the inverse of each matrix in one of these arrays, but again, inv() doesn't do what I want -- it only works on 2-d arrays. Any thoughts on how to achieve these things using numpy functions? Unrelated to numpy, but you can apply the basics of dynamic programming to optimize the stuff. -- Greg -- http://mail.python.org/mailman/listinfo/python-list -- ~l0nwlf -- http://mail.python.org/mailman/listinfo/python-list
Re: Accessing windoze file attributes
@Diez and @David Thanks guys. Both excellent leads. Colour me happy. I can now make progress and meet some deadlines. :) @Lawrence Why reinvent rsync? In what way is rsync relevant to the stated problem? Did you actually READ the question? Note: I use Linux at home (yes, even rsync) and very much prefer it to Windows. However, at work I have no choice but to use the resources the company provides - which is Windows; have you got that straight now? If you have something more helpful and mature to say, relevant to the actual question, then I will gladly hear it, and even apologise. Otherwise, don't bother. I already enough from respondents who were far more adult, knowledgeable and helpful ... and all the more impressive in comparison. Sincerely, -- Douglas -- http://mail.python.org/mailman/listinfo/python-list
Debugger - fails to continue with breakpoint set
I'm pretty new to Python, but I am really enjoying it as an alternative to Perl and PHP. When I run the debugger [import pdb; pdb.set_trace()] and then do next and step, and evaluate variables, etc, when I hit 'c' for continue, we go to the end, just fine. As soon as I set a breakpoint down the line, [b line number] the behavior of 'c' changes. Instead of continuing until the breakpoint, or until the end, if the breakpoint is hidden by a conditional, the debugger starts to treat 'c' as a step (or a next, I'm not sure which.) This behavior is repeatable and consistent. I see this in python 2.6.4 on Ubuntu 9.10 and also in 2.5.2 on Ubuntu 8.04 (Hardy), both using the installed packages. I must be missing something. Assistance will be welcome. Thanks, Ed Greenberg -- http://mail.python.org/mailman/listinfo/python-list
socket.error: [Errno 98] Address already in use
Hi There, I get a socket error [Errno 98] Address already in use when i try to open a socket that got closed before with close(). How come close() doesn't close the socket properly? My socket code : s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.bind((host, port)) s.listen(1) ... ... ... while loop: conn, addr = s.accept() while conn and loop: ... ... ... conn.close() Shouldn't that clean it all up properly? Thanks for hints suggestions! Ron -- http://mail.python.org/mailman/listinfo/python-list
Re: socket.error: [Errno 98] Address already in use
On Wednesday 15 September 2010, it occurred to cerr to exclaim: Hi There, I get a socket error [Errno 98] Address already in use when i try to open a socket that got closed before with close(). How come close() doesn't close the socket properly? My socket code : s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.bind((host, port)) s.listen(1) ... ... ... while loop: conn, addr = s.accept() while conn and loop: ... ... ... conn.close() Shouldn't that clean it all up properly? `s` is still listening? -- http://mail.python.org/mailman/listinfo/python-list
Re: distutils, cygwin, 'not a regular file'
On Wednesday 15 September 2010, it occurred to Paul Watson to exclaim: So, what is not a regular file about this? Is there any way to find out which files are being considered irregular? Regular files are the kind of files used to store bytes. Other kinds of files you might find in a file system include: directories symbolic links pipes (FIFOs) sockets (UNIX/LOCAL domain) character devices block devices Also, for help on interpreting the message at hand, see Lawrence d'Oliveiro's response. $ uname -a CYGWIN_NT-6.0-WOW64 pwatson 1.7.7(0.230/5/3) 2010-08-31 09:58 i686 Cygwin $ cat setup.py from distutils.core import setup setup( name='xlsexport', version='0.3', py_modules=['xlsexport'] ) 20:47 pwatson [ pwatson:/cygdrive/c/Users/pwatson/bin/xlsexport] 12 $ python setup.py sdist running sdist warning: sdist: missing required meta-data: url warning: sdist: missing meta-data: either (author and author_email) or (maintainer and maintainer_email) must be supplied reading manifest file 'MANIFEST' creating xlsexport-0.3 making hard links in xlsexport-0.3... ' not a regular file -- skipping ' not a regular file -- skipping ' not a regular file -- skipping tar -cf dist/xlsexport-0.3.tar xlsexport-0.3 gzip -f9 dist/xlsexport-0.3.tar removing 'xlsexport-0.3' (and everything under it) -- http://mail.python.org/mailman/listinfo/python-list
Re: Cross Compiling Python for ARM
Thomas Jollans wrote: On Tuesday 14 September 2010, it occurred to Neil Benn to exclaim: # ./python -sh: ./python: not found I'm guessing either there is no file ./python, or /bin/sh is fundamentally broken. or ./python is a symlink to a file that does not exist, or ./python is a script and the shebang line points to an interpreter that does not exist. The most popular way to get the latter problem is to write the script on a Windows box and then upload it to Unix box using FTP in binary mode (or some other transport that doesn't adjust the line endings). Try the command file ./python. If it reports something like: ./python: a /usr/bin/python\015 script text executable , then the \015 tells you that you need to use dos2unix. It may be the case that /bin/sh is fundamentally broken if it reports ./python: file not found if the problem is really the shebang line. Unfortunately, some shells are fundamentally broken this way. Hope this helps, -- HansM -- http://mail.python.org/mailman/listinfo/python-list
Re: socket.error: [Errno 98] Address already in use
On 2010-09-15, cerr ron.egg...@gmail.com wrote: I get a socket error [Errno 98] Address already in use when i try to open a socket that got closed before with close(). How come close() doesn't close the socket properly? My socket code : s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.bind((host, port)) s.listen(1) ... ... ... while loop: conn, addr = s.accept() while conn and loop: ... ... ... conn.close() At what line does the error occur? To what does the phrase open a socket refer? Have you tried the usual solution of setting the SO_REUSEADDR option on the socket before calling bind? http://www.google.com/search?q=socket+%27address+already+in+use%27 -- Grant Edwards grant.b.edwardsYow! I own seven-eighths of at all the artists in downtown gmail.comBurbank! -- http://mail.python.org/mailman/listinfo/python-list
Re: Debugger - fails to continue with breakpoint set
On Wednesday 15 September 2010, it occurred to Ed Greenberg to exclaim: I'm pretty new to Python, but I am really enjoying it as an alternative to Perl and PHP. When I run the debugger [import pdb; pdb.set_trace()] and then do next and step, and evaluate variables, etc, when I hit 'c' for continue, we go to the end, just fine. As soon as I set a breakpoint down the line, [b line number] the behavior of 'c' changes. Instead of continuing until the breakpoint, or until the end, if the breakpoint is hidden by a conditional, the debugger starts to treat 'c' as a step (or a next, I'm not sure which.) This behavior is repeatable and consistent. I see this in python 2.6.4 on Ubuntu 9.10 and also in 2.5.2 on Ubuntu 8.04 (Hardy), both using the installed packages. I must be missing something. Assistance will be welcome. I can't reproduce this. Please post a small script and debugger session transcript that illustrate the problem clearly. Maybe, on the way, you'll discover something you'd been missing. Maybe someone here will be able to help you then (maybe someone is now, but not me...). Maybe it's a bug (which it would be, if it behaves as you describe, but as I said, it appears to work for me). -- http://mail.python.org/mailman/listinfo/python-list
Multiprocessing Queue strange behavior
Hi list,
I recently found a bug in my company's code because of a strange behavior
using multiprocessing.Queue. The following code snippet:
from multiprocessing import Queue
queue = Queue()
queue.put('x')
print queue.get_nowait()
Fails with:
...
File
E:\Shared\dist-0902\i686.win32\processing-0.52\lib\site-packages\processing\queue.py,
line 153, in getNoWait
return self.get(False)
File
E:\Shared\dist-0902\i686.win32\processing-0.52\lib\site-packages\processing\queue.py,
line 129, in get
raise Empty
Queue.Empty
Strangely, changing this to:
queue = Queue()
queue.put('x')
time.sleep(0.1) #
print queue.get_nowait()
Works as expected. Using the original snippet changing the import to
threading's Queue also works.
It seems like there's a bug in multiprocessing's Queue implementation.
Opinions?
Thanks.
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Re: Multiprocessing Queue strange behavior
On 15/09/2010 21:10, Bruno Oliveira wrote:
Hi list,
I recently found a bug in my company's code because of a strange
behavior using multiprocessing.Queue. The following code snippet:
from multiprocessing import Queue
queue = Queue()
queue.put('x')
print queue.get_nowait()
Fails with:
...
File
E:\Shared\dist-0902\i686.win32\processing-0.52\lib\site-packages\processing\queue.py,
line 153, in getNoWait
return self.get(False)
File
E:\Shared\dist-0902\i686.win32\processing-0.52\lib\site-packages\processing\queue.py,
line 129, in get
raise Empty
Queue.Empty
Strangely, changing this to:
queue = Queue()
queue.put('x')
time.sleep(0.1) #
print queue.get_nowait()
Works as expected. Using the original snippet changing the import to
threading's Queue also works.
It seems like there's a bug in multiprocessing's Queue implementation.
Opinions?
I don't think it's a bug as such.
The purpose of the multiprocessing queue is to transfer data between
different processes, which don't have a shared address space (unlike
threads, which do).
The transfer involves passing the data between the processes via a
pipe. This is done in a background thread and takes some time to
complete, so the data won't appear immediately. It looks like it
doesn't matter that the putter and the getter happen to be in the same
process, possibly because no-one expected that someone would use a
multiprocessing queue within the same process like that, so it doesn't
check for a shortcut.
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Please I need help!
I urgently need money help!https://siteheart.com/js/chat/chat.html? ent=9228hash=97b8aa4b4eec4801f941b0aa97cd2587ipcsid=842e10a5515ee7299638a546b6b2997f Maria -- http://mail.python.org/mailman/listinfo/python-list
Re: os.path.normcase rationale?
Chris Withers ch...@simplistix.co.uk writes:
I'm curious as to why, with a file called Foo.txt
os.path.normcase('FoO.txt') will return foo.txt rather than
Foo.txt?
What kind of answer are you looking for?
A direct answer would be: it does that because on case-insensitive
filesystems, it doesn't matter what the case is, so there's no need for
anything more complex than all lowercase.
Yes, I know the behaviour is documented
The docstring is fairly poor, IMO. You might want to submit a bug report
to improve it.
but I'm wondering if anyone can remember the rationale for that
behaviour?
I can't speak to that. Does the above answer seem sufficient?
--
\ “I think there is a world market for maybe five computers.” |
`\ —Thomas Watson, chairman of IBM, 1943 |
_o__) |
Ben Finney
--
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Re: business date and calendar libraries?
On 9/13/10 12:06 PM, Chris Withers wrote: Hi All, I'm wondering what libraries people would use to answer the following questions relating to business days: - on a naive level; what's give me the last business day (ie: skipping weekends) - on a less-naive level; same question but taking into account public holidays - on a horrific level; same question, but taking into account business days of a particular market (NYSE, LSE, etc) Quantlib has a fairly good (by which I mean, horrific) collection of these implemented in C++: http://quantlib.svn.sourceforge.net/viewvc/quantlib/trunk/QuantLib/ql/time/calendars/ If you only need a few of these, it can be more straightforward to look at them and recode them rather than trying to build Quantlib and its wrappers. Most of them have some algorithmic component (e.g. weekends, easy recurring holidays) and some exceptional cases (e.g. the days NYSE was closed after 2001-09-11). -- Robert Kern I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth. -- Umberto Eco -- http://mail.python.org/mailman/listinfo/python-list
Re: Numpy: Multiplying arrays of matrices
On 9/15/10 11:36 AM, Colin J. Williams wrote: On 14-Sep-10 19:54 PM, Gregory Ewing wrote: Suppose I have two N+2 dimensional arrays, representing N-d arrays of 2-d matrices. I want to perform matrix multiplication between corresponding matrices in these arrays. I had thought that dot() might do this, but it appears not, because e.g. applying it to two 3-d arrays gives a 4-d array, not another 3-d array. I'd also like to be able to find the inverse of each matrix in one of these arrays, but again, inv() doesn't do what I want -- it only works on 2-d arrays. Any thoughts on how to achieve these things using numpy functions? There is a Matrix sub-class which permit you to do that sort of thimg. No, it doesn't. -- Robert Kern I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth. -- Umberto Eco -- http://mail.python.org/mailman/listinfo/python-list
Re: Debugger - fails to continue with breakpoint set
On 09/15/2010 02:04 PM, Thomas Jollans wrote: On Wednesday 15 September 2010, it occurred to Ed Greenberg to exclaim: I'm pretty new to Python, but I am really enjoying it as an alternative to Perl and PHP. When I run the debugger [import pdb; pdb.set_trace()] and then do next and step, and evaluate variables, etc, when I hit 'c' for continue, we go to the end, just fine. As soon as I set a breakpoint down the line, [bline number] the behavior of 'c' changes. Instead of continuing until the breakpoint, or until the end, if the breakpoint is hidden by a conditional, the debugger starts to treat 'c' as a step (or a next, I'm not sure which.) This behavior is repeatable and consistent. I see this in python 2.6.4 on Ubuntu 9.10 and also in 2.5.2 on Ubuntu 8.04 (Hardy), both using the installed packages. I must be missing something. Assistance will be welcome. I can't reproduce this. Please post a small script and debugger session transcript that illustrate the problem clearly. Maybe, on the way, you'll discover something you'd been missing. Maybe someone here will be able to help you then (maybe someone is now, but not me...). Maybe it's a bug (which it would be, if it behaves as you describe, but as I said, it appears to work for me). Here is my debugger session as requested. Note that I set a breakpoint at line 7, but c still stops at lines 4, 5 and 6. I hope somebody can explain this. - r...@cloud4:~# python --version Python 2.6.4 r...@cloud4:~# python test.py /root/test.py(3)module() - a=1 (Pdb) l 1 #!/usr/bin/python 2 import pdb;pdb.set_trace() 3 -a=1 4 b=2 5 c=3 6 d=4 7 print a,b,c,d 8 [EOF] (Pdb) b 7 Breakpoint 1 at /root/test.py:7 (Pdb) c /root/test.py(4)module() - b=2 (Pdb) c /root/test.py(5)module() - c=3 (Pdb) c /root/test.py(6)module() - d=4 (Pdb) c /root/test.py(7)module() - print a,b,c,d (Pdb) c 1 2 3 4 --Return-- /root/test.py(7)module()-None - print a,b,c,d (Pdb) c r...@cloud4:~# -- http://mail.python.org/mailman/listinfo/python-list
Re: os.path.normcase rationale?
Ben Finney wrote: it doesn't matter what the case is, so there's no need for anything more complex than all lowercase. Also doing what was suggested would require looking at what's in the file system, which would be a lot of bother to go to for no good reason, and would fail for paths that don't correspond to an existing file. -- Greg -- http://mail.python.org/mailman/listinfo/python-list
it doesn't work ;) [class recursive function]
I need some fresh eyes, or better brains, or both!
The expected debugging output is a list of names in alphabetical order
from each node (there are about 90 of them); what I am getting is this:
-- dbf.tables.Index.from_file('', r'aad13658_last_name_for_state.idx')
starting next_item call for root
-
open file 'aad13658_last_name_for_state.idx', mode 'rb' at 0x013BD458
512 30
-
more nodes
CARNAHAN 1536
ENGLUND1024
HOLSTEIN 2048
MATTHEWS 2560
ROSENFELD 3072
TERWILLIGER3584
YAZZOLINO 4096
and then it stops. I should get about nine of these sections, and I'm
only getting one.
code snippet
class Index(object):
@classmethod
def from_file(cls, table, index_file):
def get_idx_records(data, length, howmany):
print get_idx_records: keylen - %d; howmany - %d %\
(length, howmany)
ptr = 0
current = 0
while current howmany:
key = data[ptr:ptr+length].replace('\x00','')
rec = io.unpackLongInt(data[ptr+length:ptr+length+4],\
bigendian=True)
yield key, rec
ptr += length + 4
current += 1
def next_item(idx_file, node_loc, keylen):
print idx_file, node_loc, keylen, '\n','-'
idx_file.seek(node_loc)
data_chunk = idx_file.read(512)
attributes = io.unpackShortInt(data_chunk[:2])
howmany = io.unpackShortInt(data_chunk[2:4])
if attributes in (2, 3):
print actual records
for key, rec in get_idx_records(data_chunk[12:512],\
keylen, howmany):
yield key, rec
else:
print more nodes
for ignore, next_node in \
get_idx_records(data_chunk[12:512],\
keylen, howmany):
print ignore, next_node
next_item(idx_file, next_node, keylen)
idx = object.__new__(cls)
#- idx.key = lambda rec: DoNotIndex
data = open(index_file, 'rb')
header = data.read(512)
rootnode = io.unpackLongInt(header[:4])
keylen = io.unpackShortInt(header[12:14])
idx.__doc__ = header[16:236].replace('\x00','')
for_expr = header[236:456].replace('\x00','')
if for_expr:
idx.__doc__ += ' for ' + for_expr.replace('=','==')
print starting next_item call for root
for rec in next_item(data, rootnode, keylen):
print rec
/code snippet
Any ideas appreciated!
~Ethan~
aad13658_last_name_for_state.idx
Description: Binary data
--
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compiling python 3.1.2 with local readline fails to get readline - help!
I compiled readline 6.1 myself. # ./configure --prefix=/home/apps/python --disable-shared --with- pymalloc --with-threads --with-pth --enable-big-digits --disable-ipv6 --enable-readline --with-readline=/home/apps/readline/lib/ # make -j14 modules not installed: readline . Python starts but no readline. What is the proper configure flag to use a locally compiled readline? I tried with and without --with-readline and with readline/ and readline/lib as shown above. thx for help -- http://mail.python.org/mailman/listinfo/python-list
Re: it doesn't work ;) [class recursive function]
On 16/09/2010 00:23, Ethan Furman wrote:
I need some fresh eyes, or better brains, or both!
The expected debugging output is a list of names in alphabetical order
from each node (there are about 90 of them); what I am getting is this:
-- dbf.tables.Index.from_file('', r'aad13658_last_name_for_state.idx')
starting next_item call for root
-
open file 'aad13658_last_name_for_state.idx', mode 'rb' at 0x013BD458
512 30
-
more nodes
CARNAHAN 1536
ENGLUND 1024
HOLSTEIN 2048
MATTHEWS 2560
ROSENFELD 3072
TERWILLIGER 3584
YAZZOLINO 4096
and then it stops. I should get about nine of these sections, and I'm
only getting one.
code snippet
[snip code]
/code snippet
Any ideas appreciated!
'next_item' is a generator, but it's just calling itself and discarding
the result. I think it should be yielding the results to its caller.
That fix gives me 7 sections in total.
--
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Re: compiling python 3.1.2 with local readline fails to get readline - help!
On Thu, Sep 16, 2010 at 9:58 AM, gavino gavcom...@gmail.com wrote: I compiled readline 6.1 myself. # ./configure --prefix=/home/apps/python --disable-shared --with- pymalloc --with-threads --with-pth --enable-big-digits --disable-ipv6 --enable-readline --with-readline=/home/apps/readline/lib/ # make -j14 modules not installed: readline . Python starts but no readline. What is the proper configure flag to use a locally compiled readline? I tried with and without --with-readline and with readline/ and readline/lib as shown above. thx for help AFAIK, there are no readline specific options in python 2.x's ./configure options: # pwd /usr/ports/opt/python/Python-2.6.5 # ./configure --help | grep readline -i # I could be wrong... Are you sure you've configured and compile readline correctly and that you've set the appropriate environment variables and paths for C/C++ compilers (eg: GCC) to pick it up ? cheers James -- -- James Mills -- -- Problems are solved by method -- http://mail.python.org/mailman/listinfo/python-list
classes and dictionaries
Hello everyone, I'm encountering an issue in one of my Python classes that makes extensive use of dictionaries. I was under the impression that each time an object was instantiated, all of its variables were created in a new section of memory, so that if you change the value of the variable in one instance, it left that variable's value in another instance alone. In the object that I wrote, I have 3 different dictionaries: parm_data, pointers, and formats, all defined in the same place. When I load 2 instances of this object, parm_data and formats each take on different values between the two objects (as they should), but for some reason pointers does not. I've seen this problem with python2.6.4 and 2.6.1 (and I believe earlier versions as well, but I'm not sure). I've attached a tarball with the relevant code and a sample script that shows what I mean. If anyone can tell me why the dictionary from 2 different objects are exactly the same for pointers, but are different for, e.g. parm_data and formats, that would be greatly appreciated. Thanks! Jason -- Jason M. Swails Quantum Theory Project, University of Florida Ph.D. Graduate Student 352-392-4032 prmtop_test.tgz Description: GNU Zip compressed data -- http://mail.python.org/mailman/listinfo/python-list
program organization question for web development with python
Hi,
I'm new to this area. Please allow me to ask some (maybe stupid)
questions.
I'm planning to write a web application which used for searching my
mysql database.
1. files organization
I have this in my main.py:
print a href=display_tb.py?id=%stable=%scursor=%s%s/a %
(record[0],table_name,cursor_name,record1)
it kind of works but not comfortable to me.
Do I have to use two files(main.py and display_tb.py)? does that means
each hyper-link needs a single file? Can I put those files together
and then they can share variables,classes, modules, etc?
2. database cursor as parameter?
I created database cursor in my main.py and then I have to use it in
another file(display_tb.py), Can I? I put cursor as a parameter and
try to send it through hyper-link. but it somehow does not work.
error log listed below:
/usr/lib/cgi-bin/display_tb.py in ()
20 sql_str = SELECT * FROM %s % search_str_list
21 print p%s/p % sql_str
22 cursor_ptr.execute(sql_str)
23 result = cursor_ptr.fetchall()
24
cursor_ptr = 'MySQLdb.cursors.Cursor object at 0xb786b36c',
cursor_ptr.execute undefined, sql_str = 'SELECT * FROM env_test where
id=20 '
type 'exceptions.AttributeError': 'str' object has no attribute
'execute'
args = ('str' object has no attribute 'execute',)
message = 'str' object has no attribute 'execute'
--
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Re: classes and dictionaries
On Thu, Sep 16, 2010 at 10:13 AM, Jason Swails jason.swa...@gmail.com wrote:
Hello everyone,
I'm encountering an issue in one of my Python classes that makes extensive
use of dictionaries. I was under the impression that each time an object
was instantiated, all of its variables were created in a new section of
memory, so that if you change the value of the variable in one instance, it
left that variable's value in another instance alone. In the object that I
wrote, I have 3 different dictionaries: parm_data, pointers, and formats,
all defined in the same place. When I load 2 instances of this object,
parm_data and formats each take on different values between the two objects
(as they should), but for some reason pointers does not. I've seen this
problem with python2.6.4 and 2.6.1 (and I believe earlier versions as well,
but I'm not sure). I've attached a tarball with the relevant code and a
sample script that shows what I mean.
If anyone can tell me why the dictionary from 2 different objects are
exactly the same for pointers, but are different for, e.g. parm_data and
formats, that would be greatly appreciated.
In short (without creating a huge thread of unnecessary chatter), if
you reference an object in 2 different dictionaries,
the values (dictionary values) will be identical.
The following example might help you understand this.
class Foo(object):
...def __init__(self, data=None):
... self.data = {params: data}
...
a = b = object()
id(a), id(b)
(3075279112L, 3075279112L)
foo = Foo(a)
bar = Foo(b)
foo.data, bar.data
({'params': object object at 0xb74d0908}, {'params': object object
at 0xb74d0908})
id(foo.data[params]), id(bar.data[params])
(3075279112L, 3075279112L)
cheers
James
--
-- James Mills
--
-- Problems are solved by method
--
http://mail.python.org/mailman/listinfo/python-list
Re: program organization question for web development with python
On Thu, Sep 16, 2010 at 10:14 AM, Hans hans...@gmail.com wrote: I'm new to this area. Please allow me to ask some (maybe stupid) questions. Without reading the rest of your post too much. Designs are up to you, I can't comment. I can only share in a fairly common view, and that is, we'd encourage you to use a web framework as opposed to plain old CGI. cheers james -- -- James Mills -- -- Problems are solved by method -- http://mail.python.org/mailman/listinfo/python-list
Re: classes and dictionaries
On 16/09/2010 01:13, Jason Swails wrote: Hello everyone, I'm encountering an issue in one of my Python classes that makes extensive use of dictionaries. I was under the impression that each time an object was instantiated, all of its variables were created in a new section of memory, so that if you change the value of the variable in one instance, it left that variable's value in another instance alone. In the object that I wrote, I have 3 different dictionaries: parm_data, pointers, and formats, all defined in the same place. When I load 2 instances of this object, parm_data and formats each take on different values between the two objects (as they should), but for some reason pointers does not. I've seen this problem with python2.6.4 and 2.6.1 (and I believe earlier versions as well, but I'm not sure). I've attached a tarball with the relevant code and a sample script that shows what I mean. If anyone can tell me why the dictionary from 2 different objects are exactly the same for pointers, but are different for, e.g. parm_data and formats, that would be greatly appreciated. When you bind to a name in the class namespace: class Example: foo = class attribute the name is an attribute of the class. If you want a name to be an attribute of an instance then you should refer to the instance explicitly: class Example: def __init__(self): self.bar = instance attribute -- http://mail.python.org/mailman/listinfo/python-list
Re: socket.error: [Errno 98] Address already in use
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 El 15/09/2010 20:58, Grant Edwards escribió: On 2010-09-15, cerr ron.egg...@gmail.com wrote: I get a socket error [Errno 98] Address already in use when i try to open a socket that got closed before with close(). How come close() doesn't close the socket properly? My socket code : s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.bind((host, port)) s.listen(1) ... ... ... while loop: conn, addr = s.accept() while conn and loop: ... ... ... conn.close() At what line does the error occur? To what does the phrase open a socket refer? Have you tried the usual solution of setting the SO_REUSEADDR option on the socket before calling bind? http://www.google.com/search?q=socket+%27address+already+in+use%27 Maybe, you have any other proccess in your system using your listen port, for example apache... - -- _ _ _ _ _ _ _ _ _ _ _ Jose Ignacio Palacios Ortega /_ _/ / / / _ / / _ / Telf: +34 637 058 813 / / / / / /_ / / / / / / Correo-e: jipalaciosort...@gmail.com _/ / / / / _ _ _/ / / / / Msn: jipalaciosort...@gmail.com / /_ / / / / / / / /_/ / ID firma PGP: 0x0EB87E48 \ _ _ / /_/ /_/ /_ _ _/ Huella PGP:61CC 5DA0 827B C3AB F83C 2A55 78AF B317 0EB8 7E48 -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkyRafgACgkQeK+zFw64fkjH2wCffe4v8ho2z4d8LWaPaiJRu0OZ 4cgAniOoR70hu7UylkpgAr3JI5hxNXYP =MoYK -END PGP SIGNATURE- -- http://mail.python.org/mailman/listinfo/python-list
Re: compiling python 3.1.2 with local readline fails to get readline - help!
On Sep 15, 5:12 pm, James Mills prolo...@shortcircuit.net.au wrote: On Thu, Sep 16, 2010 at 9:58 AM, gavino gavcom...@gmail.com wrote: I compiled readline 6.1 myself. # ./configure --prefix=/home/apps/python --disable-shared --with- pymalloc --with-threads --with-pth --enable-big-digits --disable-ipv6 --enable-readline --with-readline=/home/apps/readline/lib/ # make -j14 modules not installed: readline . Python starts but no readline. What is the proper configure flag to use a locally compiled readline? I tried with and without --with-readline and with readline/ and readline/lib as shown above. thx for help AFAIK, there are no readline specific options in python 2.x's ./configure options: # pwd /usr/ports/opt/python/Python-2.6.5 # ./configure --help | grep readline -i # I could be wrong... Are you sure you've configured and compile readline correctly and that you've set the appropriate environment variables and paths for C/C++ compilers (eg: GCC) to pick it up ? cheers James -- -- James Mills -- -- Problems are solved by method I am comiling 3.1.2. I am not root but a user. I compiled readline and it did not complain. gdb and zlib and some other modules also were not found. -- http://mail.python.org/mailman/listinfo/python-list
Re: [Python-Dev] problem with python 3.1
(Posting to python general discussion). On Thu, Sep 16, 2010 at 10:17 AM, João Vitor john...@hotmail.com wrote: I made a program that, according to my teacher, is correct but is not running properly. The program is really simple: import math x = input (Coloque o valor do primeiro cateto:) y = input (Coloque o valor do segundo cateto:) z = x**2 w = y**2 soma = z + w h = math.sqrt (soma) print = O valor da hipotenusa é:, h But after I put the value of x and y this error appears: Traceback (most recent call last): File C:/lista03.py, line 4, in module z = x**2 TypeError: unsupported operand type(s) for ** or pow(): 'str' and 'int' My teacher said the program ran normally in his computer, but in my it doesn't! why? You're teacher has clearly overlooked that you must convert the values of x and y to int's using either: x = int(input(...)) or x = int(x) You cannot perform (most) mathematical operators where the operands are of different types (in Python) eg: str and int cheers James PS: Please post questions like this to either the tutor or general python mailing list(s). -- -- James Mills -- -- Problems are solved by method -- http://mail.python.org/mailman/listinfo/python-list
Re: compiling python 3.1.2 with local readline fails to get readline - help!
On Thu, Sep 16, 2010 at 11:10 AM, gavino gavcom...@gmail.com wrote: I am comiling 3.1.2. I am not root but a user. I compiled readline and it did not complain. gdb and zlib and some other modules also were not found. Like I said earlier in my previous post, is the readline line that you compiled and installed to your home directory actually working and can you actually compile any C programs that use this custom readline ? cheers James -- -- James Mills -- -- Problems are solved by method -- http://mail.python.org/mailman/listinfo/python-list
Re: WMI in Python
KING LABS kinglabs...@gmail.com wrote: The following information is exactly what I am trying to collect for the inventory. I can find vb scripts with googling. I want to do the same with Python Win32. Use Server/Client architecture . Client(agent) updates the information to server. I highly agree with the recommendations for Tim Golden's WMI library. I once used it during an MS VBScript course for sys admins to produce python equivalents of the VBS code; it was far, _far_ easier to componentise reuse python code than VBS. However, for a quick ready solution, have you looked at Microsoft's Scriptomatic?[2] It's a handy little tool that lets you specify the WMI query you want and produces code for you, with Python being one of the targets. It _should_ be able to handle most of everything you're after, with the exception of Software Information (from memory that's not something WMI covers?). Once Scriptomatic has generated the bulk of the WMI code, that's the payload of your client-side script. There are many many many ways of doing simple client/server set ups in python, just google and pick one that works at a suitable abstraction level for you. Here's a straightforward sockets-based approach[3] (that I've never used but looks okay). 1: http://timgolden.me.uk/python/wmi/index.html 2: http://www.microsoft.com/downloads/en/details.aspx?FamilyID=09dfc342-648b-4119-b7eb-783b0f7d1178displaylang=en 3: http://wdvl.internet.com/Authoring/python/client/watts06152009.html -- http://mail.python.org/mailman/listinfo/python-list
Re: Accessing windoze file attributes
In message a3cb644c-ea77-484a-9509-bf6fea9e9...@q18g2000vbm.googlegroups.com, Douglas wrote: Why reinvent rsync? In what way is rsync relevant to the stated problem? Did you actually READ the question? Yes. Note: I use Linux at home (yes, even rsync) and very much prefer it to Windows. However, at work I have no choice but to use the resources the company provides - which is Windows; have you got that straight now? Doesn’t change the fact that you’re reinventing rsync. -- http://mail.python.org/mailman/listinfo/python-list
Re: WMI in Python
In message d8d3a07f-118c-4f8b-a6fc-f6f8762c9...@x18g2000pro.googlegroups.com, alex23 wrote: However, for a quick ready solution, have you looked at Microsoft's Scriptomatic?[2] It's a handy little tool that lets you specify the WMI query you want and produces code for you, with Python being one of the targets. Why not just call Scriptomatic directly from within the Python script, then? Machine-generated code has no place in a source file to be maintained by a human. -- http://mail.python.org/mailman/listinfo/python-list
How do you preserve time values with date.datefromtimestamp()
I'm doing something like today = datetime.date.fromtimestamp(1284584357.241863) today.ctime() 'Wed Sep 15 00:00:00 2010' Why isn't the time field being populated what I expect is to see something like Wed Sep 15 2010 16:59:17:241863 -- [ Rodrick R. Brown ] http://www.rodrickbrown.com http://www.linkedin.com/in/rodrickbrown -- http://mail.python.org/mailman/listinfo/python-list
Argparse: add_argument with action=append appends to default
I find this surprising:
import argparse
parser = argparse.ArgumentParser()
parser.add_argument('--test', action='append', default=['default'])
[...]
parser.parse_args(['--test', 'arg'])
Namespace(test=['default', 'arg'])
As an argument is provided, I didn't expect to see the default in there as
well. From the argparse docs: the default value is used when the option
string was not present at the command line. While it doesn't say _only_
when..., that's what I would have expected.
Is there a reason for this behaviour? Is there a way to do what I want, to get
a list of appended options _or_ a default list (apart from setting defaults
outside the parser, a good way to lose track of things)?
Thanks,
John
--
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Re: How do you preserve time values with date.datefromtimestamp()
On 15Sep2010 22:31, Rodrick Brown rodrick.br...@gmail.com wrote: | I'm doing something like | | today = datetime.date.fromtimestamp(1284584357.241863) | today.ctime() | 'Wed Sep 15 00:00:00 2010' | | Why isn't the time field being populated what I expect is to see something | like Wed Sep 15 2010 16:59:17:241863 Because you asked for a date. A date only has day resolution. It's like going: i = int(1.234) which quite legitimately results in 1 (the interger, not a string). You want a datetime, thus: today = datetime.datetime.fromtimestamp(1284584357.241863) today datetime.datetime(2010, 9, 16, 6, 59, 17, 241863) today.ctime() 'Thu Sep 16 06:59:17 2010' Note that .ctime() is a specific historic time reporting format of very limited utility - you're a lot better off not considering it as a storage value or as a value to print, unless you actually need to work in the domains where it is used. Cheers, -- Cameron Simpson c...@zip.com.au DoD#743 http://www.cskk.ezoshosting.com/cs/ Tiggers don't like honey. - A.A.Milne, The House at Pooh Corner -- http://mail.python.org/mailman/listinfo/python-list
select() call and filedescriptor out of range in select error
Hi all, We have a select-based server written in Python. Occasionally, maybe twice a month there occurs a weird problem, select() returns with filedescriptor out of range in select() error. This is of course a normal error and handled gracefully. Our policy is to take down few users for select() to handle the next cycle. However, once this error occurs, this also fails too: self.__Sockets.remove(socket) self.__Socket's is the very basic list of sockets we use in our IO loop. The call fails with: remove(x): x not in list First of all, in our entire application there is no line of code like remove(x), meaning there is no x variable. Second, the Exception shows the line number containing above code. So self.__Sockets.remove(socket) this fails with remove(x): x not in list I cannot understand the problem. It happens in sporadic manner and it feels that the ValueError of select() call somehow corrupts the List structure itself in Python? Not sure if something like that is possible. Thanks in advance, -- http://mail.python.org/mailman/listinfo/python-list
Re: Numpy: Multiplying arrays of matrices
On Sep 14, 4:54 pm, Gregory Ewing greg.ew...@canterbury.ac.nz wrote: Suppose I have two N+2 dimensional arrays, representing N-d arrays of 2-d matrices. I want to perform matrix multiplication between corresponding matrices in these arrays. I had thought that dot() might do this, but it appears not, because e.g. applying it to two 3-d arrays gives a 4-d array, not another 3-d array. I'd also like to be able to find the inverse of each matrix in one of these arrays, but again, inv() doesn't do what I want -- it only works on 2-d arrays. Any thoughts on how to achieve these things using numpy functions? I find for situations like this the best thing I can do is hand code the bounded operation and use the slicing to handle the arbitrarily large stuff with slicing. So, r[:,:,1,1] = a[:,:,1,1]*b[:,:,1,1] + a[:,:,2,1]*b[:,:,1,2] r[:,:,1,2] = a[:,:,1,2]*b[:,:,1,1] + a[:,:,2,2]*b[:,:,1,2] etc. Carl Banks -- http://mail.python.org/mailman/listinfo/python-list
Re: help with calling a static method in a private class
On Tue, 14 Sep 2010 16:38:50 +0200, Diez B. Roggisch wrote: And additionally, but simply not using staticmethods at all. It's a rather obscure feature of python - usually, classmethods are what is considered a static method in other languages. Are you sure about that? I know Java isn't necessarily other languages, but my understanding is that static methods in Java are the same as static methods in Python -- they're essentially ordinary functions glued to a class, and they don't receive either the instance or the class as an argument. http://leepoint.net/notes-java/flow/methods/50static-methods.html (Aside: I don't know about others, but I find that article *incredibly* hard to read. E.g. Static methods typically take all they data from parameters and compute something from those parameters, with no reference to variables. What, parameters aren't variables? What about local variables? I know what they *mean*, but it causes a double-take every time I read it. And when they distinguish between *classes* and *objects*, that's another double-take, because of course in Python classes are objects.) C# seems to be the same: http://dotnetperls.com/static-method as is C++ (I believe), except I'm too lazy to find a good reference. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: select() call and filedescriptor out of range in select error
In article bafd7b25-8a4a-4ef9-b839-adc42b62d...@i17g2000vbq.googlegroups.com, k3xji sum...@gmail.com wrote: We have a select-based server written in Python. Occasionally, maybe twice a month there occurs a weird problem, select() returns with filedescriptor out of range in select() error. This is of course a normal error and handled gracefully. Our policy is to take down few users for select() to handle the next cycle. However, once this error occurs, this also fails too: self.__Sockets.remove(socket) self.__Socket's is the very basic list of sockets we use in our IO loop. The call fails with: remove(x): x not in list First of all, in our entire application there is no line of code like remove(x), meaning there is no x variable. Second, the Exception shows the line number containing above code. So self.__Sockets.remove(socket) this fails with remove(x): x not in list I cannot understand the problem. It happens in sporadic manner and it feels that the ValueError of select() call somehow corrupts the List structure itself in Python? Not sure if something like that is possible. That error message is a generic exception message. It just means the object to be removed is not in the list. For example: l = [a, b] a, b = 1, 2 l = [a, b] l.remove(a) l.remove(a) Traceback (most recent call last): File stdin, line 1, in module ValueError: list.remove(x): x not in list If the problem is that the socket object in question no longer exists, you can protect your code there by enclosing the remove operation in a try block, like: try: self.__Sockets.remove(socket) except ValueError: pass -- Ned Deily, n...@acm.org -- http://mail.python.org/mailman/listinfo/python-list
Re: select() call and filedescriptor out of range in select error
On Wed, 15 Sep 2010 21:05:49 -0700, k3xji wrote: Hi all, We have a select-based server written in Python. Occasionally, maybe twice a month there occurs a weird problem, select() returns with filedescriptor out of range in select() error. This is of course a normal error and handled gracefully. Our policy is to take down few users for select() to handle the next cycle. However, once this error occurs, this also fails too: self.__Sockets.remove(socket) self.__Socket's is the very basic list of sockets we use in our IO loop. The call fails with: remove(x): x not in list Please show the *exact* error message, including the traceback, by copying and pasting it. Do not retype it by hand, or summarize it, or put it into your own words. First of all, in our entire application there is no line of code like remove(x), meaning there is no x variable. Look at this example: sockets = [] sockets.remove(Hello world) Traceback (most recent call last): File stdin, line 1, in module ValueError: list.remove(x): x not in list x is just a placeholder. It doesn't refer to an actual variable x. Second, the Exception shows the line number containing above code. So self.__Sockets.remove(socket) this fails with remove(x): x not in list Exactly. I cannot understand the problem. It happens in sporadic manner and it feels that the ValueError of select() call somehow corrupts the List structure itself in Python? Not sure if something like that is possible. Anything is possible, but it's not likely. What's far more likely is that you have a bug in your code, and that somehow, under rare circumstances, it tries to remove something from a list that was never inserted into the list. Or it tries to remove it twice. My guess is something like this: try: socket = get_socket() self._sockets.append(socket) except SomeError: pass # later on self._sockets.remove(socket) -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: select() call and filedescriptor out of range in select error
On Thu, Sep 16, 2010 at 2:49 PM, Ned Deily n...@acm.org wrote: If the problem is that the socket object in question no longer exists, you can protect your code there by enclosing the remove operation in a try block, like: The question that remains to be seen however is: Why does your list contain dirty data ? Your code has likely removed the socket object from the list before, why is it attempting to remove it again ? I would consider you re-look at your code's logic rather than patch up the code with a band-aid-solution. cheers James -- -- James Mills -- -- Problems are solved by method -- http://mail.python.org/mailman/listinfo/python-list
[issue9315] The trace module lacks unit tests
Antoine Pitrou pit...@free.fr added the comment: It looks like 3.1 with computed gotos produces the yet another different tracing of list comprehensions: 2: l = [i for 10: i in 1: range(10)] Well, this kind of thing is going to depend on the exact bytecode, the way the evaluation loop is written, etc. That's why I would suggest checking that the number of traced iterations is between, e.g. 10 (since it's the number of loop iterations) and 15 (to account for any additional iterations due to various inner jumps in the bytecode. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9315 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9759] GzipFile object should raise ValueError on .read() after .close()
Antoine Pitrou pit...@free.fr added the comment: You should make sure that all operations (except close() itself) raise ValueError. Currently: f = gzip.open(test.gz, rb) f.close() f.read() b'' f.seek(0) 0 Also, you don't have to post a patch for 2.7. We'll do the porting ourselves. Thanks for contributing! -- stage: needs patch - patch review ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9759 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9315] The trace module lacks unit tests
Changes by Antoine Pitrou pit...@free.fr: -- Removed message: http://bugs.python.org/msg116438 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9315 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9858] RawIOBase doesn't define readinto
Changes by Antoine Pitrou pit...@free.fr: -- nosy: +benjamin.peterson, stutzbach ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9858 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9857] SkipTest in tearDown is reported an as an error
Michael Foord mich...@voidspace.org.uk added the comment: Interesting use case. If the test has not yet failed this is fine. The problem is that if an exception has *already* been raised then it will already have been added to the result - so by then skipping is meaningless (or contradictory - the test can fail *and* skip). -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9857 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9858] RawIOBase doesn't define readinto
Benjamin Peterson benja...@python.org added the comment: +1 for a failing one. (Does the base implementation not raise?) Is it even possible to implement a real one without buffering? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9858 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9858] RawIOBase doesn't define readinto
Antoine Pitrou pit...@free.fr added the comment: +1 for a failing one. (Does the base implementation not raise?) The base implementation doesn't exist :) Is it even possible to implement a real one without buffering? FileIO does. It's the same as read(), except that you read into an existing buffer rather than allocating a new bytes object. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9858 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9858] Python and C implementations of io are out of sync
Daniel Stutzbach dan...@stutzbachenterprises.com added the comment: Attached is a script to find all of the mismatches between the C and Python implementations. There are several. Below is the output: RawIOBase C is missing: ['readinto', 'write'] StringIO C is missing: ['name'] StringIO python is missing: ['__getstate__', '__setstate__'] BufferedRandom python is missing: ['raw'] BlockingIOError python is missing: ['characters_written'] TextIOWrapper python is missing: ['buffer'] BufferedReader python is missing: ['raw'] BufferedWriter python is missing: ['raw'] BytesIO python is missing: ['__setstate__'] Since the Python version was the original reference implementation, adding the attributes missing from the C side seems to be a straightforward decision (and it should simply match whatever the Python version does). It looks like a number of new attributes have creeped into the C side, which will require more thoughtful decision making. We should probably double-check that each of these is documented, while we're at it. -- priority: low - normal resolution: - accepted title: RawIOBase doesn't define readinto - Python and C implementations of io are out of sync Added file: http://bugs.python.org/file18889/missing_methods.py ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9858 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9859] Add tests to verify API match of modules with 2 implementations
New submission from Daniel Stutzbach dan...@stutzbachenterprises.com: Recently it came to light that the classes in C and Python implementations of the io module have slightly different attributes (issue9858). I propose the addition of a helper function in Lib/test/support.py to verify that the classes in two different implementations define the same attributes. Then, we can add tests to use that function to verify that C and Python implementations define the same API (for the io module, but also for other modules where we have two implementations). The script I added to issue9858 could serve as a starting point for such a function. Since CPython's standard library is the de facto reference implementation, it's important that it define one API and not two slightly different ones. :-) -- components: Tests messages: 116445 nosy: stutzbach priority: low severity: normal stage: needs patch status: open title: Add tests to verify API match of modules with 2 implementations type: feature request versions: Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9859 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9858] Python and C implementations of io are out of sync
Daniel Stutzbach dan...@stutzbachenterprises.com added the comment: FWIW, I just opened Issue9859: Add tests to verify API match of modules with 2 implementations. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9858 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9851] multiprocessing socket timeout will break client
Jesse Noller jnol...@gmail.com added the comment: Calling it stupid doesn't incentivize me to help you, or fix it. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9851 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9857] SkipTest in tearDown is reported an as an error
Changes by Raghuram Devarakonda draghu...@gmail.com: -- nosy: +draghuram ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9857 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9860] Building python outside of source directory fails
New submission from Alexander Belopolsky belopol...@users.sourceforge.net: When testing config options, it is often useful to build python in a directory different from the root of the source tree. This is supported by autoconf based builds as follows: you cd to the desired directory run configure with an explicit path. For example: $ cd ../altdir $ ../python-source/configure $ make However, this fails for python 3.1 and 3.2 with the following error: i686-apple-darwin10-gcc-4.2.1: Parser/tokenizer_pgen.o: No such file or directory i686-apple-darwin10-gcc-4.2.1: Parser/printgrammar.o: No such file or directory i686-apple-darwin10-gcc-4.2.1: Parser/pgenmain.o: No such file or directory make: *** [Parser/pgen] Error 1 -- assignee: belopolsky components: Interpreter Core messages: 116448 nosy: belopolsky priority: normal severity: normal stage: needs patch status: open title: Building python outside of source directory fails type: compile error versions: Python 3.1, Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9860 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue678264] test_resource fails when file size is limited
R. David Murray rdmur...@bitdance.com added the comment: The test does not fail if FSIZE is not max on linux/py3k, but max is still represented as -1 on linux. So the reported bug is no longer valid, but Martin's concern has not been addressed. -- nosy: +r.david.murray ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue678264 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9861] subprocess module changed exposed attributes
New submission from paul clinch pcli...@internet-glue.co.uk: Some attributes, e.g. STARTF_USESHOWWINDOW have moved to _subrocess.STARTF_USESHOWWINDOW. This breaks old code. -- components: Library (Lib) messages: 116450 nosy: pclinch priority: normal severity: normal status: open title: subprocess module changed exposed attributes type: behavior versions: Python 2.6 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9861 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9860] Building python outside of source directory fails
Alexander Belopolsky belopol...@users.sourceforge.net added the comment: I think the problem is with the following explicit rules in Makefile: Parser/tokenizer_pgen.o:$(srcdir)/Parser/tokenizer.c Parser/pgenmain.o: $(srcdir)/Include/parsetok.h It looks like these rules are not VPATH friendly. Per Antoine's suggestions, adding build experts to the nosy list. -- nosy: +dmalcolm, doko ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9860 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9859] Add tests to verify API match of modules with 2 implementations
R. David Murray rdmur...@bitdance.com added the comment: Shouldn't the test suite catch such discrepancies by testing all of the API? So your script catching something would be the equivalent of oops, we forgot a test (or oops, this name shouldn't be public). Which is not a bad thing to have as part of the test suite. -- nosy: +r.david.murray ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9859 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9859] Add tests to verify API match of modules with 2 implementations
Daniel Stutzbach dan...@stutzbachenterprises.com added the comment: Yes, exactly. :-) (see also Issue9731, which has a similar flavor) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9859 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9516] sysconfig: $MACOSX_DEPLOYMENT_TARGET mismatch: now 10.3 but 10.5 during configure
Stonewall Ballard ston...@gmail.com added the comment: I just ran into this with Python 2.7, installed using port. I'm using python to process a text file in an Xcode 3.2 Script build step, and it's throwing the error because my Xcode target has a base sdk of 10.5. -- nosy: +stoneyb ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9516 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9858] Python and C implementations of io are out of sync
Benjamin Peterson benja...@python.org added the comment: 2010/9/15 Daniel Stutzbach rep...@bugs.python.org: Daniel Stutzbach dan...@stutzbachenterprises.com added the comment: Attached is a script to find all of the mismatches between the C and Python implementations. There are several. Below is the output: BufferedRandom python is missing: ['raw'] TextIOWrapper python is missing: ['buffer'] BufferedReader python is missing: ['raw'] BufferedWriter python is missing: ['raw'] These attributes exist; they're just not properties. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9858 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
