RE: a problem about print
You can use : print aList is +repr([x,x,x,x,x,x,x,x,x]) -Shambhu From: levi nie [mailto:levinie...@gmail.com] Sent: 04/07/2012 9:43 AM To: python-list@python.org Subject: a problem about print aList is a list.i want to get the output seem this aList is [x,x,x,x,x,x,x,x,x] how can i get this? it's wrong when i write this, print aList is +[x,x,x,x,x,x,x,x,x] -- http://mail.python.org/mailman/listinfo/python-list
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Re: a problem about print
Hi,Harrison. Your method is cool. But i doubt this, if bList and aList just are attached to the same List when i write bList=aList,but why the output of the following two code are different? code1: aList=[1,2,3,4,5,6,7,8,9,10] bList=aList bList=str(bList) print aList print aList[2] code2: aList=[1,2,3,4,5,6,7,8,9,10] aList=str(aList) print aList print aList[2] i'm puzzled now. 2012/7/4 Harrison Morgan harrison.mor...@gmail.com On Wed, Jul 4, 2012 at 12:38 AM, levi nie levinie...@gmail.com wrote: that's good,thanks. new problem. when i write bList=aList del bList[2] bList and aList both change,how can i make aList not changed? Lists are mutable. That means that when you do bList = aList, you're just creating another reference to aList. They both point to the same list, just using different names. You should read up a bit on immutable vs. mutable objects. Here's something that I found that might explain it a bit better. http://henry.precheur.org/python/copy_list -- http://mail.python.org/mailman/listinfo/python-list
Re: a problem about print
On Wed, Jul 4, 2012 at 5:28 PM, levi nie levinie...@gmail.com wrote: aList=str(aList) print aList print aList[2] The str() function takes pretty much anything and returns a string. When you subscript a string, you get characters. It's not a list of numbers any more. (Technically str is a class, not a function, but that distinction doesn't matter.) ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: a problem about print
in the code2 aList=[1,2,3,4,5,6,7,8,9,10] aList=str(aList) #--- here you convert the list in a string print aList print aList[2] #-- here you are printing the third caracter of the string '[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]' not the list '[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]' regards Matteo Il 04/07/2012 09:28, levi nie ha scritto: Hi,Harrison. Your method is cool. But i doubt this, if bList and aList just are attached to the same List when i write bList=aList,but why the output of the following two code are different? code1: aList=[1,2,3,4,5,6,7,8,9,10] bList=aList bList=str(bList) print aList print aList[2] code2: aList=[1,2,3,4,5,6,7,8,9,10] aList=str(aList) print aList print aList[2] i'm puzzled now. 2012/7/4 Harrison Morgan harrison.mor...@gmail.com mailto:harrison.mor...@gmail.com On Wed, Jul 4, 2012 at 12:38 AM, levi nie levinie...@gmail.com mailto:levinie...@gmail.com wrote: that's good,thanks. new problem. when i write bList=aList del bList[2] bList and aList both change,how can i make aList not changed? Lists are mutable. That means that when you do bList = aList, you're just creating another reference to aList. They both point to the same list, just using different names. You should read up a bit on immutable vs. mutable objects. Here's something that I found that might explain it a bit better. http://henry.precheur.org/python/copy_list -- http://mail.python.org/mailman/listinfo/python-list
Re: when normal parallel computations in CPython will be implemented at last?
John Nagle na...@animats.com wrote: It would be un-Pythonic to have real concurrency in Python. You wouldn't be able to patch code running in one thread from another thread. Some of the dynamic features of Python would break. If you want fine-grained concurrency, you need controlled isolation between concurrent tasks, so they interact only at well-defined points. That's un-Pythonic. I disagree. The situation in Python is no different than the situation in other programming languages. If you have shared state, you protect it with some kind of lock. After all, you don't patch code on a byte-by-byte basis -- you just change function bindings. That can be done atomically. -- Tim Roberts, t...@probo.com Providenza Boekelheide, Inc. -- http://mail.python.org/mailman/listinfo/python-list
Re: code review
On Jul 4, 3:39 pm, Littlefield, Tyler ty...@tysdomain.com wrote: I basically just stopped after a while. It got into a my language is better than your language, so I didn't see much constructive info. To be fair, it's more my vision of the language is better than yours :) But yes, it should've been forked into a separate thread ages okay. It did get me wondering, though, if there's much in the way of support for code review in repository sites like github? Being able to aggregate comments around the actual code itself could be really handy. -- http://mail.python.org/mailman/listinfo/python-list
Re: code review
On Jul 4, 11:17 am, alex23 wuwe...@gmail.com wrote: On Jul 4, 3:39 pm, Littlefield, Tyler ty...@tysdomain.com wrote: I basically just stopped after a while. It got into a my language is better than your language, so I didn't see much constructive info. To be fair, it's more my vision of the language is better than yours :) But yes, it should've been forked into a separate thread ages okay. A program is a product of a person's creativity as is a programming language. They have an analogous relation as say a sculpture to chisels. This thread is a good example of how longwindedness of a discussion correlates with its uselessness. However the reverse error is more insidious: programs are made by humans and should be critiqued, whereas programming languages (in particular python) is sacrosanct and cannot be questioned. Too often I find that responders on this list treat as personal affront anyone who questions python whereas the most appropriate response would be: Nice idea but too invasive for serious consideration. [I am saying this in general and not for this thread:Whats wrong with a b c is quite beyond me!] It did get me wondering, though, if there's much in the way of support for code review in repository sites like github? Being able to aggregate comments around the actual code itself could be really handy. -- http://mail.python.org/mailman/listinfo/python-list
Re: a problem about print
Yes,you are right. 2012/7/4 Chris Angelico ros...@gmail.com On Wed, Jul 4, 2012 at 5:28 PM, levi nie levinie...@gmail.com wrote: aList=str(aList) print aList print aList[2] The str() function takes pretty much anything and returns a string. When you subscript a string, you get characters. It's not a list of numbers any more. (Technically str is a class, not a function, but that distinction doesn't matter.) ChrisA -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: a problem about print
Yes,you're right. I got it now.I mistaked that aList also had be changed in code1 before. Thanks a lot. 2012/7/4 Matteo Boscolo matteo.bosc...@boscolini.eu in the code2 aList=[1,2,3,4,5,6,7,8,9,10] aList=str(aList) #--- here you convert the list in a string print aList print aList[2] #-- here you are printing the third caracter of the string '[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]' not the list '[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]' regards Matteo Il 04/07/2012 09:28, levi nie ha scritto: Hi,Harrison. Your method is cool. But i doubt this, if bList and aList just are attached to the same List when i write bList=aList,but why the output of the following two code are different? code1: aList=[1,2,3,4,5,6,7,8,9,10] bList=aList bList=str(bList) print aList print aList[2] code2: aList=[1,2,3,4,5,6,7,8,9,10] aList=str(aList) print aList print aList[2] i'm puzzled now. 2012/7/4 Harrison Morgan harrison.mor...@gmail.com On Wed, Jul 4, 2012 at 12:38 AM, levi nie levinie...@gmail.com wrote: that's good,thanks. new problem. when i write bList=aList del bList[2] bList and aList both change,how can i make aList not changed? Lists are mutable. That means that when you do bList = aList, you're just creating another reference to aList. They both point to the same list, just using different names. You should read up a bit on immutable vs. mutable objects. Here's something that I found that might explain it a bit better. http://henry.precheur.org/python/copy_list -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: a problem about print
@Matteo, @Levi, please don't top post it makes following a thread very difficult, no other comments, TIA. On 04/07/2012 08:51, Matteo Boscolo wrote: in the code2 aList=[1,2,3,4,5,6,7,8,9,10] aList=str(aList) #--- here you convert the list in a string print aList print aList[2] #-- here you are printing the third caracter of the string '[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]' not the list '[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]' regards Matteo Il 04/07/2012 09:28, levi nie ha scritto: Hi,Harrison. Your method is cool. But i doubt this, if bList and aList just are attached to the same List when i write bList=aList,but why the output of the following two code are different? code1: aList=[1,2,3,4,5,6,7,8,9,10] bList=aList bList=str(bList) print aList print aList[2] code2: aList=[1,2,3,4,5,6,7,8,9,10] aList=str(aList) print aList print aList[2] i'm puzzled now. 2012/7/4 Harrison Morgan harrison.mor...@gmail.com mailto:harrison.mor...@gmail.com On Wed, Jul 4, 2012 at 12:38 AM, levi nie levinie...@gmail.com mailto:levinie...@gmail.com wrote: that's good,thanks. new problem. when i write bList=aList del bList[2] bList and aList both change,how can i make aList not changed? Lists are mutable. That means that when you do bList = aList, you're just creating another reference to aList. They both point to the same list, just using different names. You should read up a bit on immutable vs. mutable objects. Here's something that I found that might explain it a bit better. http://henry.precheur.org/python/copy_list -- Cheers. Mark Lawrence. -- http://mail.python.org/mailman/listinfo/python-list
Re: code review
On 03/07/2012 22:54, Chris Angelico wrote: On Wed, Jul 4, 2012 at 6:13 AM, Dave Angel d...@davea.name wrote: On 07/03/2012 12:05 PM, Mark Lawrence wrote: If I go to the moon I will weigh 2st 10lb (if my sums are correct :) but the equivalent Frenchman will still be 86kg. I hereby put this forward as proof that the metric system is rubbish and we should revert back to imperial goodies. 86 kg is not a weight, it's a mass. So it doesn't depend on the local gravity situation. Indeed it is, as he says. But I believe he may be right in that 'stone' is a unit of weight. Hard to be sure, though, given that it's not an SI unit (for instance, the Wikipedia article text refers to weight, but its picture shows a man measuring mass). ChrisA Stone is a unit of weight (Brits know important things like this). And with the consistency that the English language is reknowned for the plural is, yes you've guessed it, stone :) -- Cheers. Mark Lawrence. -- http://mail.python.org/mailman/listinfo/python-list
Using a CMS for small site?
Hello Someone I know with no computer knowledge has a studio appartment to rent in Paris and spent four months building a small site in Joomla to find short-time renters. The site is just... - a few web pages that include text (in four languages) and pictures displayed in a Flash slide show - a calendar to show availability - a form to send e-mail with anti-SPAM support - (ASAP) online payment Out of curiosity, are there CMS/frameworks in Python that can do this? Django? Other? Is a full-fledged CMS even needed for something like that? Thank you. -- http://mail.python.org/mailman/listinfo/python-list
Re: code review
Mark Lawrence breamore...@yahoo.co.uk writes: On 03/07/2012 03:25, John O'Hagan wrote: On Tue, 3 Jul 2012 11:22:55 +1000 I agree to some extent, but as a counter-example, when I was a child there a subject called Weights and Measures which is now redundant because of the Metric system. I don't miss hogsheads and fathoms at all. John I weigh 13st 8lb - does this make me redundant? It might mean that you have some redundant weight :) -- http://mail.python.org/mailman/listinfo/python-list
adding a simulation mode
I'm writing a program which has to interact with many external resources, at least: - mysql database - perforce - shared mounts - files on disk And the logic is quite complex, because there are many possible paths to follow depending on some other parameters. This program even needs to run on many virtual machines at the same time so the interaction is another thing I need to check... Now I successfully managed to mock the database with sqlalchemy and only the fields I actually need, but I now would like to simulate also everything else. I would like for example that if I simulate I can pass a fake database, a fake configuration and get the log of what exactly would happen. But I'm not sure how to implement it now.. One possibility would be to have a global variable (PRETEND_ONLY = False) that if set should be checked before every potentially system-dependent command. For example copytree(src, dest) becomes: if not PRETEND_ONLY: copytree(src, dest) But I don't like it too much because I would have to add a lot of garbage around.. Another way is maybe to set the sys.excepthook to something that catchs all the exceptions that would be thrown by these comands, but I'm not sure is a good idea either.. Any suggestion? -- http://mail.python.org/mailman/listinfo/python-list
Re: Using a CMS for small site?
In article pu28v7t3nstsamp9emp1781utck1mei...@4ax.com, Gilles nos...@nospam.com wrote: Hello Someone I know with no computer knowledge has a studio appartment to rent in Paris and spent four months building a small site in Joomla to find short-time renters. The site is just... - a few web pages that include text (in four languages) and pictures displayed in a Flash slide show - a calendar to show availability - a form to send e-mail with anti-SPAM support - (ASAP) online payment Out of curiosity, are there CMS/frameworks in Python that can do this? Django? Other? You probably want to look at https://www.django-cms.org/. It's not something that a person with no computer knowledge could set up, but once it's set up, that person could use it to build pages. But, to be honest, for somebody who really doesn't know anything, some much more pre-canned solution like WordPress might be what they're looking for. -- http://mail.python.org/mailman/listinfo/python-list
Re: code review
2012/7/4 Paul Rudin paul.nos...@rudin.co.uk Mark Lawrence breamore...@yahoo.co.uk writes: On 03/07/2012 03:25, John O'Hagan wrote: On Tue, 3 Jul 2012 11:22:55 +1000 I agree to some extent, but as a counter-example, when I was a child there a subject called Weights and Measures which is now redundant because of the Just a Test.I didn't familiar about maillist. Metric system. I don't miss hogsheads and fathoms at all. J I weigh 13st 8lb - does this make me redundant? It might mean that you have some redundant weight :) -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
locals().update(...)
I expected this to work:
def f(**args):
locals().update(args)
print locals()
print a
d=dict(a=1)
f(**d)
but:
global name 'a' is not defined
Where is my mistake?
This does work:
globals().update({'a':1})
print a
1
-E
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Re: locals().update(...)
Am 04.07.2012 13:56, schrieb eis...@gmail.com: I expected this to work: It doesn't work and that's documented: http://docs.python.org/library/functions.html?highlight=locals#locals -- http://mail.python.org/mailman/listinfo/python-list
Re: adding a simulation mode
On Wed, 04 Jul 2012 10:42:56 +0100, andrea crotti wrote: I'm writing a program which has to interact with many external resources, at least: - mysql database - perforce - shared mounts - files on disk And the logic is quite complex, because there are many possible paths to follow depending on some other parameters. This program even needs to run on many virtual machines at the same time so the interaction is another thing I need to check... Now I successfully managed to mock the database with sqlalchemy and only the fields I actually need, but I now would like to simulate also everything else. I would like for example that if I simulate I can pass a fake database, a fake configuration and get the log of what exactly would happen. But I'm not sure how to implement it now.. One possibility would be to have a global variable (PRETEND_ONLY = False) that if set should be checked before every potentially system-dependent command. I think a better way would be to use a mock database, etc. For each thing which you want to simulate, create a class that has the same interface but a simulated implementation. Then, have your code accept the thing as an argument. E.g. instead of having a hard-coded database connection, allow the database connection to be set (perhaps as an argument, perhaps as a config option, etc.). There are libraries to help with mocks, e.g.: http://garybernhardt.github.com/python-mock-comparison/ For example copytree(src, dest) becomes: if not PRETEND_ONLY: copytree(src, dest) Ewww :( Mocking the file system is probably the hardest part, because you generally don't have a FileSystem object available to be replaced. In effect, your program has one giant global variable, the file system. Worse, it's not even a named variable, it's hard-coded everywhere you use it. I don't know of any good solution for that. I've often thought about it, but don't have an answer. I suppose you could monkey-patch a bunch of stuff: if ONLY_PRETEND: open = my_mock_open copytree = my_mock_copytree # etc. main() # run your application but that would also be painful. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Question about weakref
Hi all
I have a situation where I thought using weakrefs would save me a bit of
effort.
I have a basic publish/subscribe scenario. The publisher maintains a
list of listener objects, and has a method whereby a listener can
subscribe to the list by passing in 'self', whereupon it gets added to
the list.
When the publisher has something to say, it calls a pre-defined method
on each of the listeners. Simple, but it works.
The listeners are fairly transient, so when they go out of scope, I need
to remove them from the list maintained by the publisher. Instead of
keeping track of all of them and removing them explicitly, I thought of
using weakrefs and let them be removed automatically.
It almost works. Here is an example -
import weakref
class A: # the publisher class
def __init__(self):
self.array = []
def add_b(self, b):
self.array.append(weakref.ref(b, self.del_b))
def del_b(self, b):
self.array.remove(b)
def chk_b(self, ref):
for b in self.array:
b().hallo(ref)
class B: # the listener class
def __init__(self, a, name):
self.name = name
a.add_b(self)
def hallo(self, ref):
print(self.name, 'hallo from', ref)
def __del__(self):
print('%s deleted' % self.name)
a = A()
x = B(a, 'test x')
y = B(a, 'test y')
z = B(a, 'test z')
a.chk_b(1)
del x
a.chk_b(2)
del y
a.chk_b(3)
del z
a.chk_b(4)
print(a.array)
The output is as expected -
test x hallo from 1
test y hallo from 1
test z hallo from 1
test x deleted
test y hallo from 2
test z hallo from 2
test y deleted
test z hallo from 3
test z deleted
[]
Then I tried weakref.proxy.
I changed
self.array.append(weakref.ref(b, self.del_b))
to
self.array.append(weakref.proxy(b, self.del_b))
and
b().hallo(ref)
to
b.hallo(ref)
I got the same result.
Then I varied the order of deletion - instead of x, then y, then z, I
tried x, then z, then y.
Now I get the following traceback -
test x hallo from 1
test y hallo from 1
test z hallo from 1
test x deleted
test y hallo from 2
test z hallo from 2
Exception ReferenceError: 'weakly-referenced object no longer exists' in
bound
method A.del_b of __main__.A object at 0x00A8A750 ignored
test z deleted
test y hallo from 3
Traceback (most recent call last):
File F:\junk\weaklist.py, line 70, in module
a.chk_b(3)
File F:\junk\weaklist.py, line 51, in chk_b
b.hallo(ref)
ReferenceError: weakly-referenced object no longer exists
test y deleted
If I go back to using weakref.ref, but with the new deletion order, it
works.
So now I am confused.
1. Why do I get the traceback?
2. Can I rely on using weakref.ref, or does that also have some problem
that has just not appeared yet?
Any advice will be appreciated.
BTW, I am using python 3.2.2.
Thanks
Frank Millman
--
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Re: adding a simulation mode
2012/7/4 Steven D'Aprano steve+comp.lang.pyt...@pearwood.info:
Then, have your code accept the thing as an argument.
E.g. instead of having a hard-coded database connection, allow the
database connection to be set (perhaps as an argument, perhaps as a
config option, etc.).
There are libraries to help with mocks, e.g.:
http://garybernhardt.github.com/python-mock-comparison/
Ah yes this part is already done, I pass an object to the entry point
of the program which represents the database connection, which looks
like this:
class MockMysqlEngine(MySqlEngine):
# TODO: make the engine more generic would avoid this dirty hack
def __init__(self, *args, **kwargs):
# self.engine =
create_engine('sqlite:home/andrea/testdb.sqlite', echo=True)
self.engine = create_engine('sqlite://', echo=True)
self.meta = MetaData(bind=self.engine)
self.session_maker = sessionmaker(bind=self.engine)
Now I populate statically the schema and populate with some test data
too, but I'm also implementing a weay to just pass some CSV files so
that other people can easily write some test cases with some other
possible database configurations.
(And I use mock for a few other things)
For example
copytree(src, dest) becomes:
if not PRETEND_ONLY:
copytree(src, dest)
Ewww :(
Mocking the file system is probably the hardest part, because you
generally don't have a FileSystem object available to be replaced. In
effect, your program has one giant global variable, the file system.
Worse, it's not even a named variable, it's hard-coded everywhere you use
it.
I don't know of any good solution for that. I've often thought about it,
but don't have an answer.
I suppose you could monkey-patch a bunch of stuff:
if ONLY_PRETEND:
open = my_mock_open
copytree = my_mock_copytree
# etc.
main() # run your application
but that would also be painful.
Yes there is no easy solution apparently.. But I'm also playing
around with vagrant and virtual machine generations, suppose I'm able
to really control what will be on the machine at time X, creating it
on demand with what I need, it might be a good way to solve my
problems (a bit overkill and slow maybe though).
I'll try the sys.excepthook trick first, any error should give me an
exception, so if I catch them all I think it might work already..
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PyPyODBC 0.6 released! (A Pure Python ODBC module)
PyPyODBC - A Pure Python ctypes ODBC module Changes in version 0.6: Added Cursor.commit() and Cursor.rollback(). It is now possible to use only a cursor in your code instead of keeping track of a connection and a cursor. Added readonly keyword to connect. If set to True, SQLSetConnectAttr SQL_ATTR_ACCESS_MODE is set to SQL_MODE_READ_ONLY. This may provide better locking semantics or speed for some drivers. Features -Pure Python, compatible with PyPy (tested on Win32) -Almost totally same usage as pyodbc You can simply try pypyodbc in your existing pyodbc powered script with the following changes: #import pyodbc-- Comment out the original pyodbc importing line import pypyodbc as pyodbc # Let pypyodbc pretend the pyodbc pyodbc.connect(...) # This is pypyodbc pretending pyodbc! They have same APIs! ... Homepage:http://code.google.com/p/pypyodbc/ Demo Script: http://code.google.com/p/pypyodbc/source/browse/trunk/pypyodbc/test.py -- http://mail.python.org/mailman/listinfo/python-list
Re: adding a simulation mode
Yes there is no easy solution apparently.. But I'm also playing
around with vagrant and virtual machine generations, suppose I'm able
to really control what will be on the machine at time X, creating it
on demand with what I need, it might be a good way to solve my
problems (a bit overkill and slow maybe though).
I'll try the sys.excepthook trick first, any error should give me an
exception, so if I catch them all I think it might work already..
I actually thought that the sys.excepthook would be easy but it's not
so trivial apparently:
This simple sample never reaches the print(here), because even if
the exception is catched it still quits with return code=1.
I also tried to catch the signal but same result, how do I make it
continue and just don't complain?
The other option if of course to do a big try/except, but I would
prefer the excepthook solution..
import sys
from shutil import copy
def my_except_hook(etype, value, tb):
print(got an exception of type, etype)
if __name__ == '__main__':
sys.excepthook = my_except_hook
copy('sdflsdk')
print(here)
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Re: Using a CMS for small site?
On Wed, 04 Jul 2012 06:28:09 -0400, Roy Smith r...@panix.com wrote: You probably want to look at https://www.django-cms.org/. It's not something that a person with no computer knowledge could set up, but once it's set up, that person could use it to build pages. But, to be honest, for somebody who really doesn't know anything, some much more pre-canned solution like WordPress might be what they're looking for. Thanks for the input. Considering that contents won't change, I was wondering if a full-fledged CMS was even necessary. -- http://mail.python.org/mailman/listinfo/python-list
Re: Using a CMS for small site?
In article 7fk8v7pijp359t62clgj5g4n3d4acva...@4ax.com, Gilles nos...@nospam.com wrote: On Wed, 04 Jul 2012 06:28:09 -0400, Roy Smith r...@panix.com wrote: You probably want to look at https://www.django-cms.org/. It's not something that a person with no computer knowledge could set up, but once it's set up, that person could use it to build pages. But, to be honest, for somebody who really doesn't know anything, some much more pre-canned solution like WordPress might be what they're looking for. Thanks for the input. Considering that contents won't change, I was wondering if a full-fledged CMS was even necessary. If the content is truly never going to change, there's nothing to prevent you from creating some static html files with your favorite text editor. This is really getting quite far afield for a Python group. There are better forums for these kinds of questions. -- http://mail.python.org/mailman/listinfo/python-list
Re: adding a simulation mode
On 12-07-04 05:42 AM, andrea crotti wrote: ... copytree(src, dest) becomes: if not PRETEND_ONLY: copytree(src, dest) import globalsub, unittest class MyTest( unittest.TestCase ): def setUp( self ): globalsub.subs( shutil.copytree ) def tearDown( self ): globalsub.restore( shutil.copytree ) You can also pass a function to subs like so: def setUp( self ): self.copied_trees = [] def fake_copytree( src, dest ): assert os.path.exists( src ) self.copied_trees.append( (src, dest )) return dest # or whatever the thing should return globalsub.subs( shutil.copytree, fake_copytree ) $ pip install globalsub HTH, Mike -- Mike C. Fletcher Designer, VR Plumber, Coder http://www.vrplumber.com http://blog.vrplumber.com -- http://mail.python.org/mailman/listinfo/python-list
Re: adding a simulation mode
For what it's worth, this is the reason that Allen Short wrote Exocet. This way, you can test your code without having to resort to sys.modules hackery, and you can better factor your applications by separating configuration and environment concerns from the rest of your code. See: - http://washort.twistedmatrix.com/2011/01/introducing-exocet.html - http://washort.twistedmatrix.com/2011/03/exocet-second-look.html -- Devin -- http://mail.python.org/mailman/listinfo/python-list
Re: code review
On 04/07/2012 10:29, Paul Rudin wrote: Mark Lawrence breamore...@yahoo.co.uk writes: On 03/07/2012 03:25, John O'Hagan wrote: On Tue, 3 Jul 2012 11:22:55 +1000 I agree to some extent, but as a counter-example, when I was a child there a subject called Weights and Measures which is now redundant because of the Metric system. I don't miss hogsheads and fathoms at all. John I weigh 13st 8lb - does this make me redundant? It might mean that you have some redundant weight :) True indeed, although my beer free diet of the last 10 days (yes, 10 whole days) has at least got it down from 14 stone 2 pounds. -- Cheers. Mark Lawrence. -- http://mail.python.org/mailman/listinfo/python-list
Re: adding a simulation mode
andrea crotti andrea.crott...@gmail.com writes: copytree(src, dest) becomes: if not PRETEND_ONLY: copytree(src, dest) But I don't like it too much because I would have to add a lot of garbage around.. I've had good results writing the module under test in the style of a java applet, i.e. one of its args is a class instance representing the outside world, and ALL interaction that you might want to simulate is done through this object: def your_prog(parent): conn = parent.db.make_connection(...) blah = parent.copytree(...) Then you make real and mock versions of the external interface, and pass in an appropriate instance. -- http://mail.python.org/mailman/listinfo/python-list
2 + 2 = 5
I just came across this (https://gist.github.com/1208215): import sys import ctypes pyint_p = ctypes.POINTER(ctypes.c_byte*sys.getsizeof(5)) five = ctypes.cast(id(5), pyint_p) print(2 + 2 == 5) # False five.contents[five.contents[:].index(5)] = 4 print(2 + 2 == 5) # True (must be sufficiently large values of 2 there...) Heh. The author is apparently anonymous, I guess for good reason. -- http://mail.python.org/mailman/listinfo/python-list
Re: 2 + 2 = 5
Paul Rubin, 04.07.2012 21:37: I just came across this (https://gist.github.com/1208215): import sys import ctypes pyint_p = ctypes.POINTER(ctypes.c_byte*sys.getsizeof(5)) five = ctypes.cast(id(5), pyint_p) print(2 + 2 == 5) # False five.contents[five.contents[:].index(5)] = 4 print(2 + 2 == 5) # True (must be sufficiently large values of 2 there...) Heh. The author is apparently anonymous, I guess for good reason. That's not portable, though. ;) Stefan -- http://mail.python.org/mailman/listinfo/python-list
import class from string
Hi I'm trying to create a class from a string This is my code, but is not working 'myshop.models.base' module_name, class_name = model.rsplit(., 1) module = importlib.import_module(module_name) class_ = getattr(module, class_name)() Anyone know what I'm doing wrong or another way? thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: 2 + 2 = 5
Am 04.07.2012, 21:37 Uhr, schrieb Paul Rubin phr-2...@nightsong.com: I just came across this (https://gist.github.com/1208215): import sys import ctypes pyint_p = ctypes.POINTER(ctypes.c_byte*sys.getsizeof(5)) five = ctypes.cast(id(5), pyint_p) print(2 + 2 == 5) # False five.contents[five.contents[:].index(5)] = 4 print(2 + 2 == 5) # True (must be sufficiently large values of 2 there...) Heh. The author is apparently anonymous, I guess for good reason. Neat. Playing with it, i'm wondering: This: import sys import ctypes pyint_p = ctypes.POINTER(ctypes.c_byte*sys.getsizeof(5)) five = ctypes.cast(id(5), pyint_p) five.contents[five.contents[:].index(5)] = 4 print ( 2 + 2 == 5 ) print 5 print 5 - 2 put into a script and run prints: True 4 3 while entered at the python prompt it prints: True 4 2 ?? Regards, Michael -- http://mail.python.org/mailman/listinfo/python-list
Re: 2 + 2 = 5
On 04/07/2012 20:37, Paul Rubin wrote: I just came across this (https://gist.github.com/1208215): import sys import ctypes pyint_p = ctypes.POINTER(ctypes.c_byte*sys.getsizeof(5)) five = ctypes.cast(id(5), pyint_p) print(2 + 2 == 5) # False five.contents[five.contents[:].index(5)] = 4 print(2 + 2 == 5) # True (must be sufficiently large values of 2 there...) Heh. The author is apparently anonymous, I guess for good reason. The author got confused trying to switch from imperial to metric numbers or vice versa? -- Cheers. Mark Lawrence. -- http://mail.python.org/mailman/listinfo/python-list
Re: Using a CMS for small site?
On Wed, 04 Jul 2012 11:21:42 -0400, Roy Smith r...@panix.com wrote: This is really getting quite far afield for a Python group. There are better forums for these kinds of questions. Probably. I'll keep that in mind while checking Python web frameworks. Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: 2 + 2 = 5
On 07/04/2012 09:37 PM, Paul Rubin wrote: I just came across this (https://gist.github.com/1208215): import sys import ctypes pyint_p = ctypes.POINTER(ctypes.c_byte*sys.getsizeof(5)) five = ctypes.cast(id(5), pyint_p) print(2 + 2 == 5) # False five.contents[five.contents[:].index(5)] = 4 print(2 + 2 == 5) # True (must be sufficiently large values of 2 there...) Heh. The author is apparently anonymous, I guess for good reason. I'm reminded of the swap(a,b) function I wrote a couple of years back. http://blog.jollybox.de/archives/62-python-swap -- http://mail.python.org/mailman/listinfo/python-list
Re: locals().update(...)
On 07/04/2012 07:56 AM, eis...@gmail.com wrote:
I expected this to work:
def f(**args):
locals().update(args)
print locals()
print a
d=dict(a=1)
f(**d)
but:
global name 'a' is not defined
Where is my mistake?
Chris has given you the place where it's documented that it generally
won't work. I'll try to explain why, at least for local variables
inside functions, and for CPython implementation.
The generated byte code for a function does *not* look up each symbol by
name during execution. The compiler builds a list of known local
symbol names, and gives them each an index (a small positive integer).
At run time that list is fixed in size and meaning; no new locals can
be added. The locals() function just creates a dictionary that
approximates what the semantics of the symbols are. But changes to that
dictionary have no effect on the running function.
That's one reason that copying a global value to a local symbol inside a
function can make that function run faster. Globals always require a
dictionary lookup, while function locals are just an integer offset away.
This does work:
globals().update({'a':1})
print a
1
-E
As i said above, the rules are different for globals, and they are even
if you use locals() to access them. However, i'd consider it prudent
never to assume you can write to the dictionary constructed by either
the locals() or the globals() functions.
--
DaveA
--
http://mail.python.org/mailman/listinfo/python-list
Re: import class from string
On Wed, 04 Jul 2012 13:27:29 -0700, Mariano DAngelo wrote: Hi I'm trying to create a class from a string This is my code, but is not working 'myshop.models.base' module_name, class_name = model.rsplit(., 1) module = importlib.import_module(module_name) class_ = getattr(module, class_name)() Anyone know what I'm doing wrong What version of Python are you using? What result do you expect? What result do you actually get? When asking for help, please take the time to create a short, self- contained, correct example that anyone can actually run: http://sscce.org/ In the above, you have a bare string that does nothing; a name model that is undefined; and what looks like a module that isn't imported (importlib). We have no idea of what problem *you* see, because we can't run your code and you don't show us the error. But the general idea is correct, at least in Python 3.2: import importlib model = 'unittest.suite.BaseTestSuite' module_name, class_name = model.rsplit(., 1) module = importlib.import_module(module_name) class_ = getattr(module, class_name) At the end of which, class_ is the expected BaseTestSuite class. I suspect that your error is that after you get the class object using getattr, you then *call* the class object but give no arguments, and the class requires arguments. You say: class_ = getattr(module, class_name)() # note the extra () brackets I say: class_ = getattr(module, class_name) Either that or you have a bug in your module and it can't be imported. Or you have misspelled the module name, or the class. Or forgotten to import importlib. Or are shadowing it with your own module. Who knows? Without seeing the error, I'm just guessing. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: import class from string
On 07/04/2012 10:27 PM, Mariano DAngelo wrote:
Hi I'm trying to create a class from a string
This is my code, but is not working
It would be helpful if you posted an error message. Then, we could know
what's actually going on.
'myshop.models.base'
module_name, class_name = model.rsplit(., 1)
module = importlib.import_module(module_name)
class_ = getattr(module, class_name)()
..^^
These brackets may be causing problems?
In principle, you're doing the right thing. This works for me:
Python 3.2.3 (default, May 3 2012, 15:51:42)
[GCC 4.6.3] on linux2
Type help, copyright, credits or license for more information.
import importlib
objname = 'os.path.join'
module_name, member_name = objname.rsplit('.', 1)
module = importlib.import_module(module_name)
member = getattr(module, member_name)
member
function join at 0x7f882f4b0af0
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Re: locals().update(...)
On Wed, 04 Jul 2012 18:48:08 -0400, Dave Angel wrote: As i said above, the rules are different for globals, and they are even if you use locals() to access them. However, i'd consider it prudent never to assume you can write to the dictionary constructed by either the locals() or the globals() functions. globals() is implicitly documented as being writable: This is always the dictionary of the current module... -- unless you have a module with a read-only dict, that is writable. http://docs.python.org/release/3.2/library/functions.html#globals There are tricks to getting read-only namespaces, but you can legitimately expect to write to globals(). -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Discussion on some Code Issues
Dear Group, I am Sri Subhabrata Banerjee trying to write from Gurgaon, India to discuss some coding issues. If any one of this learned room can shower some light I would be helpful enough. I got to code a bunch of documents which are combined together. Like, 1)A Mumbai-bound aircraft with 99 passengers on board was struck by lightning on Tuesday evening that led to complete communication failure in mid-air and forced the pilot to make an emergency landing. 2) The discovery of a new sub-atomic particle that is key to understanding how the universe is built has an intrinsic Indian connection. 3) A bomb explosion outside a shopping mall here on Tuesday left no one injured, but Nigerian authorities put security agencies on high alert fearing more such attacks in the city. The task is to separate the documents on the fly and to parse each of the documents with a definite set of rules. Now, the way I am processing is: I am clubbing all the documents together, as, A Mumbai-bound aircraft with 99 passengers on board was struck by lightning on Tuesday evening that led to complete communication failure in mid-air and forced the pilot to make an emergency landing.The discovery of a new sub-atomic particle that is key to understanding how the universe is built has an intrinsic Indian connection. A bomb explosion outside a shopping mall here on Tuesday left no one injured, but Nigerian authorities put security agencies on high alert fearing more such attacks in the city. But they are separated by a tag set, like, A Mumbai-bound aircraft with 99 passengers on board was struck by lightning on Tuesday evening that led to complete communication failure in mid-air and forced the pilot to make an emergency landing.$ The discovery of a new sub-atomic particle that is key to understanding how the universe is built has an intrinsic Indian connection.$ A bomb explosion outside a shopping mall here on Tuesday left no one injured, but Nigerian authorities put security agencies on high alert fearing more such attacks in the city. To detect the document boundaries, I am splitting them into a bag of words and using a simple for loop as, for i in range(len(bag_words)): if bag_words[i]==$: print (bag_words[i],i) There is no issue. I am segmenting it nicely. I am using annotated corpus so applying parse rules. The confusion comes next, As per my problem statement the size of the file (of documents combined together) won’t increase on the fly. So, just to support all kinds of combinations I am appending in a list the “I” values, taking its length, and using slice. Works perfect. Question is, is there a smarter way to achieve this, and a curious question if the documents are on the fly with no preprocessed tag set like “$” how may I do it? From a bunch without EOF isn’t it a classification problem? There is no question on parsing it seems I am achieving it independent of length of the document. If any one in the group can suggest how I am dealing with the problem and which portions should be improved and how? Thanking You in Advance, Best Regards, Subhabrata Banerjee. -- http://mail.python.org/mailman/listinfo/python-list
Re: Discussion on some Code Issues
On Wed, 04 Jul 2012 16:21:46 -0700, subhabangalore wrote: [...] I got to code a bunch of documents which are combined together. [...] The task is to separate the documents on the fly and to parse each of the documents with a definite set of rules. Now, the way I am processing is: I am clubbing all the documents together, as, [...] But they are separated by a tag set [...] To detect the document boundaries, Let me see if I understand your problem. You have a bunch of documents. You stick them all together into one enormous lump. And then you try to detect the boundaries between one file and the next within the enormous lump. Why not just process each file separately? A simple for loop over the list of files, before consolidating them into one giant file, will avoid all the difficulty of trying to detect boundaries within files. Instead of: merge(output_filename, list_of_files) for word in parse(output_filename): if boundary_detected: do_something() process(word) Do this instead: for filename in list_of_files: do_something() for word in parse(filename): process(word) I am splitting them into a bag of words and using a simple for loop as, for i in range(len(bag_words)): if bag_words[i]==$: print (bag_words[i],i) What happens if a file already has a $ in it? There is no issue. I am segmenting it nicely. I am using annotated corpus so applying parse rules. The confusion comes next, As per my problem statement the size of the file (of documents combined together) won’t increase on the fly. So, just to support all kinds of combinations I am appending in a list the “I” values, taking its length, and using slice. Works perfect. I don't understand this. What sort of combinations do you think you need to support? What are I values, and why are they important? -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: Discussion on some Code Issues
On Jul 4, 6:21 pm, subhabangal...@gmail.com wrote: [...] To detect the document boundaries, I am splitting them into a bag of words and using a simple for loop as, for i in range(len(bag_words)): if bag_words[i]==$: print (bag_words[i],i) Ignoring that you are attacking the problem incorrectly: that is very poor method of splitting a string since especially the Python gods have given you *power* over string objects. But you are going to have an even greater problem if the string contains a $ char that you DID NOT insert :-O. You'd be wise to use a sep that is not likely to be in the file data. For example: SEP or SPLIT-HERE. But even that approach is naive! Why not streamline the entire process and pass a list of file paths to a custom parser object instead? -- http://mail.python.org/mailman/listinfo/python-list
Help using Tix and tix.balloon in tkinter.ttk Gui on Py 3.2.3, Mac OS X 10.6.8
Hi,
I'm trying to get Tix installed and working, in order to use Tix.balloon in
the first instance.
I'm using Python 3.2.3 on Mac OS X 10.6.8, installed from direct package
download from Python.org. Have also installed Py 2.7.3, and the native Mac
Py 2.6.1 and 2.5.4 are all working fine as well and not tromping on each
other.
Building a variety of Gui's under 2.7.3 and 3.2.3 with tkinter, ttk and all
going well. I'm recreating a pile of Gui's I have had for years under plain
Tcl/Tk (on Linux and Irix).
I can't get Tix working at all, doesn't seem to be supplied with any of the
Python dists. Example:
~/lang/python/tkinter/devpanel $ py3
Python 3.2.3 (v3.2.3:3d0686d90f55, Apr 10 2012, 11:25:50)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type help, copyright, credits or license for more information.
~/.pythonstartup
import tkinter
import tkinter.ttk
import tkinter.tix
root = tkinter.tix.Tk()
Traceback (most recent call last):
File stdin, line 1, in module
File
/Library/Frameworks/Python.framework/Versions/3.2/lib/python3.2/tkinter/tix.py,
line 225, in __init__
self.tk.eval('package require Tix')
_tkinter.TclError: can't find package Tix
My Python is still elementary, I may be importing and invoking Tix badly.
I've searched the Python, Tkinter, Tix sites for a few hours, searched my
Mac for tixlib files, no luck. Looks like you can build Tix from source and
install, but web posts indicate this is very hard and I don't see any
useful traffic on that in the last 2 or 3 years, never a good sign.
Any pointers appreciated ! Hope I don't get flamed, I see this group has
some epic flame wars.
Cheers,
--
Greg Edwards,
Port Jackson Bioinformatics
gedwar...@gmail.com
--
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Re: Using a CMS for small site?
On Jul 5, 1:21 am, Roy Smith r...@panix.com wrote: If the content is truly never going to change, there's nothing to prevent you from creating some static html files with your favorite text editor. This is really getting quite far afield for a Python group. There are better forums for these kinds of questions. Not necessarily! There are several static site generators written in Python :) One that I see being updating a lot is Nikola: http://nikola.ralsina.com.ar/ -- http://mail.python.org/mailman/listinfo/python-list
simpler increment of time values?
Hi all, I'd like to ask about the possibilities to do some basic manipulation on timestamps - such as incrementing a given time (hour.minute - string) by some minutes. Very basic notion of time is assumed, i.e. dateless, timezone-unaware, DST-less etc. I first thought, it would be possible to just add a timedelta to a time object, but, it doesn't seem to be the case. The code I came up with (using time and datetime modules) seems rather convoluted and I would like to ask about some possible more straightforward alternatives I missed. The equivalent function (lacking validation) without the (date)time libraries seems simple enough (for this limited and individual task). Although it is probably mostly throw-away code, which seems to do what I need, I'd be interested in better/more elegant... solutions. # # # import time import datetime import re print re.sub(r^0,, (datetime.datetime(*list(time.strptime(8.45, %H.%M))[:6]) + datetime.timedelta(minutes=30)).strftime(%H.%M)) # 9.15 # # # # # # # # # def add_minutes(hour_min_str, separator=., minutes_to_add=0): h, m = [int(s) for s in hour_min_str.split(separator)] sum_minutes = h * 60 + m + minutes_to_add h, m = divmod(sum_minutes, 60) h = h % 24 return %s%s%s % (h, separator, m) print add_minutes(hour_min_str=8.45, separator='.', minutes_to_add=30) # 9.15 # # # # # # # # # Is it true, that timedelta cannot be used with dateless time values? (Is there some other possibility than the current one, where strptime actually infers 1. 1. 1900?) Is there some simpler way to adapt the incompatible output of strptime as the input of datetime? Is it possible to get one-digit hours formatted without the leading zero? Thanks in advance for any suggestions or remarks; regards, Vlastimil Brom -- http://mail.python.org/mailman/listinfo/python-list
Re: 2 + 2 = 5
On 7/4/2012 14:37, Paul Rubin wrote: I just came across this (https://gist.github.com/1208215): import sys import ctypes pyint_p = ctypes.POINTER(ctypes.c_byte*sys.getsizeof(5)) five = ctypes.cast(id(5), pyint_p) print(2 + 2 == 5) # False five.contents[five.contents[:].index(5)] = 4 print(2 + 2 == 5) # True (must be sufficiently large values of 2 there...) Heh. The author is apparently anonymous, I guess for good reason. Probably just nostalgic for old Fortran, which, supposedly, allowed you to change the values of literals by passing them to a function by reference and then modifying the value. Evan signature.asc Description: OpenPGP digital signature -- http://mail.python.org/mailman/listinfo/python-list
Re: simpler increment of time values?
On Thu, Jul 5, 2012 at 10:29 AM, Vlastimil Brom vlastimil.b...@gmail.com wrote: I'd like to ask about the possibilities to do some basic manipulation on timestamps - such as incrementing a given time (hour.minute - string) by some minutes. Very basic notion of time is assumed, i.e. dateless, timezone-unaware, DST-less etc. My first suggestion would be to work with Unix times (that is, store your time as seconds since 1970, also called a time_t). That's forced to be on UTC (but ignoring leap seconds) so you don't have to worry about timezones or DST, and incrementing by X minutes is simply adding X*60 to it. It makes your job a lot easier! ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: 2 + 2 = 5
On 04Jul2012 19:39, Evan Driscoll drisc...@cs.wisc.edu wrote: | On 7/4/2012 14:37, Paul Rubin wrote: | I just came across this (https://gist.github.com/1208215): | | import sys | import ctypes | pyint_p = ctypes.POINTER(ctypes.c_byte*sys.getsizeof(5)) | five = ctypes.cast(id(5), pyint_p) | print(2 + 2 == 5) # False | five.contents[five.contents[:].index(5)] = 4 | print(2 + 2 == 5) # True (must be sufficiently large values of 2 there...) | | Heh. The author is apparently anonymous, I guess for good reason. | | Probably just nostalgic for old Fortran, which, supposedly, allowed you | to change the values of literals by passing them to a function by | reference and then modifying the value. Yeah, I was thinking that too. Because all parameters were pass-by-reference in early fortran IIRC. You could, for example, set pi to 3. -- Cameron Simpson c...@zip.com.au If I have seen farther than others, it is because I was standing on the shoulders of giants.- Isaac Newton If I have not seen as far as others, it is because giants were standing on my shoulders. - Hal Abelson In computer science, we stand on each other's feet. - Brian K. Reed -- http://mail.python.org/mailman/listinfo/python-list
Re: simpler increment of time values?
On 05/07/2012 01:29, Vlastimil Brom wrote: Hi all, I'd like to ask about the possibilities to do some basic manipulation on timestamps - such as incrementing a given time (hour.minute - string) by some minutes. Very basic notion of time is assumed, i.e. dateless, timezone-unaware, DST-less etc. I first thought, it would be possible to just add a timedelta to a time object, but, it doesn't seem to be the case. The code I came up with (using time and datetime modules) seems rather convoluted and I would like to ask about some possible more straightforward alternatives I missed. The equivalent function (lacking validation) without the (date)time libraries seems simple enough (for this limited and individual task). Although it is probably mostly throw-away code, which seems to do what I need, I'd be interested in better/more elegant... solutions. # # # import time import datetime import re print re.sub(r^0,, (datetime.datetime(*list(time.strptime(8.45, %H.%M))[:6]) + datetime.timedelta(minutes=30)).strftime(%H.%M)) # 9.15 # # # # # # # # # def add_minutes(hour_min_str, separator=., minutes_to_add=0): h, m = [int(s) for s in hour_min_str.split(separator)] sum_minutes = h * 60 + m + minutes_to_add h, m = divmod(sum_minutes, 60) h = h % 24 return %s%s%s % (h, separator, m) print add_minutes(hour_min_str=8.45, separator='.', minutes_to_add=30) # 9.15 # # # # # # # # # Is it true, that timedelta cannot be used with dateless time values? (Is there some other possibility than the current one, where strptime actually infers 1. 1. 1900?) Is there some simpler way to adapt the incompatible output of strptime as the input of datetime? Is it possible to get one-digit hours formatted without the leading zero? Thanks in advance for any suggestions or remarks; regards, Vlastimil Brom from dateutil.relativedelta import relativedelta should simplify things for you google and ye shall find :) -- Cheers. Mark Lawrence. -- http://mail.python.org/mailman/listinfo/python-list
how to interact with Windows cmd?
what I want to do is
1.open cmd
2.waiting for user's typing
3.when I type dir
4.print the result of dir
5.then I type some other commands, printing the result until I type
'exit'
I used
p=subprocess.Popen('cmd',stdin=subprocess.PIPE,stdout=subprocess.PIPE,stderr=subprocess.PIPE,shell=True)
p=communicate('dir')
it shows the first result but the problem is
1. it's too long so the cmd split the result with more?, so result
is not perfect
2. after this, I typed like cd .. but I/O is already closed so I
can't do another things..
Is there any good way?
--
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Re: Discussion on some Code Issues
On Thursday, July 5, 2012 4:51:46 AM UTC+5:30, (unknown) wrote: Dear Group, I am Sri Subhabrata Banerjee trying to write from Gurgaon, India to discuss some coding issues. If any one of this learned room can shower some light I would be helpful enough. I got to code a bunch of documents which are combined together. Like, 1)A Mumbai-bound aircraft with 99 passengers on board was struck by lightning on Tuesday evening that led to complete communication failure in mid-air and forced the pilot to make an emergency landing. 2) The discovery of a new sub-atomic particle that is key to understanding how the universe is built has an intrinsic Indian connection. 3) A bomb explosion outside a shopping mall here on Tuesday left no one injured, but Nigerian authorities put security agencies on high alert fearing more such attacks in the city. The task is to separate the documents on the fly and to parse each of the documents with a definite set of rules. Now, the way I am processing is: I am clubbing all the documents together, as, A Mumbai-bound aircraft with 99 passengers on board was struck by lightning on Tuesday evening that led to complete communication failure in mid-air and forced the pilot to make an emergency landing.The discovery of a new sub-atomic particle that is key to understanding how the universe is built has an intrinsic Indian connection. A bomb explosion outside a shopping mall here on Tuesday left no one injured, but Nigerian authorities put security agencies on high alert fearing more such attacks in the city. But they are separated by a tag set, like, A Mumbai-bound aircraft with 99 passengers on board was struck by lightning on Tuesday evening that led to complete communication failure in mid-air and forced the pilot to make an emergency landing.$ The discovery of a new sub-atomic particle that is key to understanding how the universe is built has an intrinsic Indian connection.$ A bomb explosion outside a shopping mall here on Tuesday left no one injured, but Nigerian authorities put security agencies on high alert fearing more such attacks in the city. To detect the document boundaries, I am splitting them into a bag of words and using a simple for loop as, for i in range(len(bag_words)): if bag_words[i]==$: print (bag_words[i],i) There is no issue. I am segmenting it nicely. I am using annotated corpus so applying parse rules. The confusion comes next, As per my problem statement the size of the file (of documents combined together) won’t increase on the fly. So, just to support all kinds of combinations I am appending in a list the “I” values, taking its length, and using slice. Works perfect. Question is, is there a smarter way to achieve this, and a curious question if the documents are on the fly with no preprocessed tag set like “$” how may I do it? From a bunch without EOF isn’t it a classification problem? There is no question on parsing it seems I am achieving it independent of length of the document. If any one in the group can suggest how I am dealing with the problem and which portions should be improved and how? Thanking You in Advance, Best Regards, Subhabrata Banerjee. Hi Steven, It is nice to see your post. They are nice and I learnt so many things from you. I is for index of the loop. Now my clarification I thought to do import os and process files in a loop but that is not my problem statement. I have to make a big lump of text and detect one chunk. Looping over the line number of file I am not using because I may not be able to take the slices-this I need. I thought to give re.findall a try but that is not giving me the slices. Slice spreads here. The power issue of string! I would definitely give it a try. Happy Day Ahead Regards, Subhabrata Banerjee. -- http://mail.python.org/mailman/listinfo/python-list
Re: 2 + 2 = 5
On 7/4/2012 4:37 PM, Michael Ross wrote: Am 04.07.2012, 21:37 Uhr, schrieb Paul Rubin phr-2...@nightsong.com: I just came across this (https://gist.github.com/1208215): import sys import ctypes pyint_p = ctypes.POINTER(ctypes.c_byte*sys.getsizeof(5)) five = ctypes.cast(id(5), pyint_p) print(2 + 2 == 5) # False five.contents[five.contents[:].index(5)] = 4 print(2 + 2 == 5) # True (must be sufficiently large values of 2 there...) Heh. The author is apparently anonymous, I guess for good reason. Neat. Playing with it, i'm wondering: This: import sys import ctypes pyint_p = ctypes.POINTER(ctypes.c_byte*sys.getsizeof(5)) five = ctypes.cast(id(5), pyint_p) five.contents[five.contents[:].index(5)] = 4 print ( 2 + 2 == 5 ) print 5 print 5 - 2 put into a script and run prints: True 4 3 The compile-time optimizer computed the contant 5-2 in C. while entered at the python prompt it prints: True 4 2 It must not run for interactive input with the undisclosed version you are running. If I run the script in 3.3 Idle, I get the same output you got. If I then enter '5-2' interactively, I still get 3. Maybe the constant folder is always on now. -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Help: PYMALLOC_DBUG and PIL
Hi~ all,
I encounter a odd problem, when i compile Python with PYMALLOC_DEBUG, the
PIL module can't work fine, it always make core-dump like this
[Switching to Thread 182897301792 (LWP 16102)]
0x004df264 in PyObject_Malloc (nbytes=64) at Objects/obmalloc.c:804
804 if ((pool-freeblock = *(block **)bp) != NULL) {
Current language: auto; currently c
(gdb) bt
#0 0x004df264 in PyObject_Malloc (nbytes=64) at
Objects/obmalloc.c:804
#1 0x004dfb97 in _PyObject_DebugMallocApi (id=109 'm', nbytes=32)
at Objects/obmalloc.c:1461
#2 0x004dfd22 in _PyObject_DebugReallocApi (api=109 'm', p=0x0,
nbytes=32) at Objects/obmalloc.c:1523
#3 0x004dfac0 in _PyMem_DebugRealloc (p=0x0, nbytes=32) at
Objects/obmalloc.c:1416
#4 0x004c68d9 in list_resize (self=0x2a988409b8, newsize=1) at
Objects/listobject.c:62
#5 0x004c6f63 in app1 (self=0x2a988409b8, v=0x2a958cea90) at
Objects/listobject.c:277
#6 0x004c6fdd in PyList_Append (op=0x2a988409b8,
newitem=0x2a958cea90) at Objects/listobject.c:289
#7 0x00558c7f in symtable_add_def (st=0x2a99a4ca68,
name=0x2a958cea90, flag=4) at Python/symtable.c:910
#8 0x0055a953 in symtable_visit_params (st=0x2a99a4ca68,
args=0x924380, toplevel=1) at Python/symtable.c:1318
#9 0x0055aaa7 in symtable_visit_arguments (st=0x2a99a4ca68,
a=0x9243c8) at Python/symtable.c:1365
#10 0x00558f3d in symtable_visit_stmt (st=0x2a99a4ca68, s=0x9244d0)
at Python/symtable.c:1012
#11 0x0055919e in symtable_visit_stmt (st=0x2a99a4ca68, s=0x924500)
at Python/symtable.c:1029
#12 0x005574d7 in PySymtable_Build (mod=0x931798,
filename=0x7fbfffa2c0
../lib/python2.7/site-packages/PIL/BmpImagePlugin.py,
future=0x2a9883aae0) at Python/symtable.c:240
#13 0x00531f14 in PyAST_Compile (mod=0x931798,
filename=0x7fbfffa2c0
../lib/python2.7/site-packages/PIL/BmpImagePlugin.py, flags=0x7fbfff9020,
arena=0x8eedd0) at Python/compile.c:282
#14 0x00545967 in parse_source_module (
pathname=0x7fbfffa2c0
../lib/python2.7/site-packages/PIL/BmpImagePlugin.py, fp=0x91a060) at
Python/import.c:843
#15 0x00545e75 in load_source_module (name=0x7fbfffb3e0
PIL.BmpImagePlugin,
pathname=0x7fbfffa2c0
../lib/python2.7/site-packages/PIL/BmpImagePlugin.py, fp=0x91a060) at
Python/import.c:1027
i've no idea about this, someone could get me help~
---
thanks a lot
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Re: simpler increment of time values?
Hi all, I'd like to ask about the possibilities to do some basic manipulation on timestamps - such as incrementing a given time (hour.minute - string) by some minutes. Very basic notion of time is assumed, i.e. dateless, timezone-unaware, DST-less etc. I first thought, it would be possible to just add a timedelta to a time object, but, it doesn't seem to be the case. The code I came up with (using time and datetime modules) seems rather convoluted and I would like to ask about some possible more straightforward alternatives I missed. The equivalent function (lacking validation) without the (date)time libraries seems simple enough (for this limited and individual task). Although it is probably mostly throw-away code, which seems to do what I need, I'd be interested in better/more elegant... solutions. I have some thoughts on a solution, but first, what is 12:45 plus 12 hours? What is 12:45 minus 13 hours? -- http://mail.python.org/mailman/listinfo/python-list
Re: simpler increment of time values?
On Thu, Jul 5, 2012 at 12:57 AM, Jason Friedman ja...@powerpull.net wrote: I have some thoughts on a solution, but first, what is 12:45 plus 12 hours? What is 12:45 minus 13 hours? Is there anything unusual that can happen for a notion of time that is dateless, timezone-unaware, and DST-free? I would imagine that under these constraints the answers are always 0:45 and 23:45 respectively. Although I guess it doesn't hurt to check. -- Devin -- http://mail.python.org/mailman/listinfo/python-list
Re: 2 + 2 = 5
On Wed, 04 Jul 2012 23:38:17 -0400, Terry Reedy wrote: If I run the script in 3.3 Idle, I get the same output you got. If I then enter '5-2' interactively, I still get 3. Maybe the constant folder is always on now. Yes, I believe constant folding is always on, since Python 2.4 if I remember correctly. Somebody who cares more than me can possibly check the What's New documents :) -- Steven -- http://mail.python.org/mailman/listinfo/python-list
[issue13801] The Python 3 Docs don't highlight nonlocal
Ramchandra Apte maniandra...@gmail.com added the comment: What is the status of this bug? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13801 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15246] Line coverage for collectionts.abc.Set
Changes by Antoine Pitrou pit...@free.fr: -- nosy: +rhettinger, stutzbach stage: - patch review ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15246 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10574] email.header.decode_header fails if the string contains multiple directives
Roy Hyunjin Han starsareblueandfara...@gmail.com added the comment: This is fixed by the fix to issue 1079, but we have decided that fix can't be backported because it is a behavior change that might break existing working programs. Thanks for this update. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10574 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15249] email.generator.BytesGenerator doesn't mangle From lines when non-ASCII bytes are present
New submission from Petri Lehtinen pe...@digip.org: The _handle_text function of BytesGenerator writes the payload straight through if there surrogateescape sequences are present, and skips the From mangling. -- components: email messages: 164641 nosy: barry, petri.lehtinen, r.david.murray priority: normal severity: normal stage: needs patch status: open title: email.generator.BytesGenerator doesn't mangle From lines when non-ASCII bytes are present versions: Python 3.2, Python 3.3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15249 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15246] Line coverage for collectionts.abc.Set
Mark Dickinson dicki...@gmail.com added the comment: Can you attach the failing tests for __and__? -- nosy: +mark.dickinson ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15246 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15205] distutils dereferences symlinks on Mac OS X but not on Linux
Ollie Walsh ollie.wa...@gmail.com added the comment: Hi, As I said in the other bug, symlinks handling in not fully specified Yes. I've mostly submitted a bug report in case anybody else encounters the problem. At present I am not sure if having symlinks in a distribution makes sense I agree. In my case symlinks are being used to restructure a large legacy module into smaller packages. When creating sdists the symlinks are dereferenced on another developer's host (OSX) and all is well but they on my host (Linux) I get packages with broken symlinks. BTW the example you link to is not at all monkey-patching My mistake. When I worked around this issue I did monkey-patch sdist. I also just wrapped the source path is os.path.readlink() before hardlinking. I think the approach in that link is a much better solution so I have referred to it instead. -Ollie -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15205 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15205] distutils dereferences symlinks on Mac OS X but not on Linux
Ollie Walsh ollie.wa...@gmail.com added the comment: PS that should be os.readlink() -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15205 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15210] importlib.__init__ checks for the wrong exception when looking for _frozen_importlib
Brett Cannon br...@python.org added the comment: Thanks for the diagnosis, Stefan. Unfortunately that line is the crux of the test. =) I will see if I can steal some time to look at the failure to see if there is anything obvious going on. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15210 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15250] document that filecmp.dircmp comparisons are shallow
New submission from Chris Jerdonek chris.jerdo...@gmail.com: The documentation for the dircmp class doesn't say that the same_files and diff_files attributes are determined using the shallow=True rules described in the filecmp.cmp() and filecmp.cmpfiles(). It should say this. For example, the documentation describes diff_files as, Files which are in both a and b, whose contents differ. But this isn't true since files whose contents differ aren't included if their os.stat() signatures are equal. See also issue 12932 to allow dircmp to perform non-shallow comparisons. -- assignee: docs@python components: Documentation keywords: easy messages: 164646 nosy: cjerdonek, docs@python priority: normal severity: normal status: open title: document that filecmp.dircmp comparisons are shallow versions: Python 3.3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15250 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15139] Speed up threading.Condition wakeup
Matt Joiner anacro...@gmail.com added the comment: Did this make it into 3.3? -- nosy: +anacrolix ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15139 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12932] filecmp.dircmp does not allow non-shallow comparisons
Chris Jerdonek chris.jerdo...@gmail.com added the comment: +1 for this. Whether or not this feature is implemented, I think the documentation should state that directory comparisons are done using shallow=True. I created issue 15250 for this. -- nosy: +cjerdonek ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue12932 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15245] ast.literal_eval fails on some literals
Changes by Mark Dickinson dicki...@gmail.com: -- nosy: +mark.dickinson ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15245 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15210] importlib.__init__ checks for the wrong exception when looking for _frozen_importlib
Chris Jerdonek chris.jerdo...@gmail.com added the comment: I could be way off (just passing through), but the test flakiness described here seems reminiscent of a discussion we had for issue 7559. There the solution to order-dependent tests with importlib involved calling importlib.invalidate_caches() at the appropriate time. -- nosy: +cjerdonek ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15210 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15139] Speed up threading.Condition wakeup
Gregory P. Smith g...@krypto.org added the comment: Nope. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15139 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15245] ast.literal_eval fails on some literals
Daniel Urban urban.dani...@gmail.com added the comment:
eval(repr(float('nan'))) doesn't work either, so I'm not sure ast.literal_eval
should. The same with float('inf').
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[issue15251] new.code and new.function crashes Python iterpretter
New submission from Jeffrey Harper jeff1.61...@gmail.com: I've attached a script that crashes the Python interpreter. I can get the crash to occur under Windows Vista with this version of Python: C:\tmp\remotec:\Python27\python.exe Python 2.7.1 Stackless 3.1b3 060516 (release27-maint, Jan 1 2011, 13:04:37) [MSC v.1500 32 bit (Intel)] on win32 Also, I got it to segfault under Ubuntu Linux: jharper@ubuntu:~$ uname -a Linux ubuntu 2.6.35-27-generic #48-Ubuntu SMP Tue Feb 22 20:25:29 UTC 2011 i686 GNU/Linux jharper@ubuntu:~$ python Python 2.6.6 (r266:84292, Sep 15 2010, 15:52:39) [GCC 4.4.5] on linux2 Note, when I commented out the line, pprint(code_args), the script generated a SystemError exception instead of crashing. -- components: Library (Lib) files: bug3.py messages: 164652 nosy: jeffdharper priority: normal severity: normal status: open title: new.code and new.function crashes Python iterpretter type: crash versions: Python 2.6, Python 2.7 Added file: http://bugs.python.org/file26257/bug3.py ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15251 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15251] new.code and new.function crashes Python iterpretter
Jeffrey Harper jeff1.61...@gmail.com added the comment: The marshal loads and dumps don't seem to be necessary to reproduce the crash. On both the Windows Vista and Ubuntu Linux systems, the crash still occurred when I replaced: mcopy_code = loads(dumps(code)) with: mcopy_code = code #loads(dumps(code)) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15251 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15251] new.code and new.function crashes Python iterpretter
Martin v. Löwis mar...@v.loewis.de added the comment: You need to pass co_freevars and co_cellvars as well for your example to work. It shouldn't crash, but I don't consider this particular crash as a bug, as it is a known limitation that new.code doesn't perform all consistency checks that are necessary to guarantee that the function execution doesn't crash the interpreter. It certainly can't be fixed in 2.6. -- nosy: +loewis versions: -Python 2.6 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15251 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15247] io.open() is inconsistent re os.open()
Antoine Pitrou pit...@free.fr added the comment: Good catch indeed. -- components: +IO nosy: +pitrou stage: - needs patch versions: +Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15247 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15210] importlib.__init__ checks for the wrong exception when looking for _frozen_importlib
Roundup Robot devn...@psf.upfronthosting.co.za added the comment: New changeset 906c69928049 by Brett Cannon in branch 'default': Issue #15210: Greatly simplify the test for supporting importlib http://hg.python.org/cpython/rev/906c69928049 -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15210 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15210] importlib.__init__ checks for the wrong exception when looking for _frozen_importlib
Brett Cannon br...@python.org added the comment: I realized the problem was that _frozen_importlib was getting set to None, which won't trigger an exception since the code was just directly accessing sys.modules. I switched to an ``import ... as ...`` clause and moved to using test.support.import_fresh_module() and that seemed to fix the problem. -- status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15210 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15245] ast.literal_eval fails on some literals
João Bernardo jbv...@gmail.com added the comment: That's what I said by `nan` and `inf` are not literals, but their representations look like they should be. One solution could be to add another argument to allow some extra names. Maybe a mapping, as `eval`. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15245 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15210] importlib.__init__ checks for the wrong exception when looking for _frozen_importlib
Antoine Pitrou pit...@free.fr added the comment: Thanks Brett! -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15210 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue3561] Windows installer should add Python and Scripts directories to the PATH environment variable
Jason Spiro jasonspi...@gmail.com added the comment: I'm glad you're willing to consider using a checkbox. It seems to fit better with the wizard paradigm, where there are always [ Back ], [ Next ], and [ Cancel ] buttons onscreen. OK, I acknowledge that a lot of third-party software still depends on Python 2. Fine. Why not modify the Python 3 installer to add Python 3 to the *end* of the PATH variable, not the beginning? Then I think you could safely modify the PATH variable by default. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3561 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue3561] Windows installer should add Python and Scripts directories to the PATH environment variable
Brian Curtin br...@python.org added the comment: We don't need to stay with some paradigm if it's not the best way. If I can get any of these ways to work, I may post some type of survey on python-dev. Adding to the end wouldn't make this much of a feature. Most users have already put another Python into their path, so if they decide they want to add 3.3 to it, this option barely helps them. Anyway, just about everything relating to this feature has been discussed on the above mentioned lists over a long period of time. The feature is implemented as is, it has already been released, and it's staying that way for 3.3. All we can do is tweak the GUI. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3561 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue3561] Windows installer should add Python and Scripts directories to the PATH environment variable
Jason Spiro jasonspi...@gmail.com added the comment: Adding Python to the end of the PATH would very much help Windows non-experts who don't even know what a PATH is. IMO, when Python 3.4 comes out, it'd make sense add Python to the end of the PATH by default. This'd help those non-experts a lot. On 7/4/12, Brian Curtin rep...@bugs.python.org wrote: Brian Curtin br...@python.org added the comment: We don't need to stay with some paradigm if it's not the best way. If I can get any of these ways to work, I may post some type of survey on python-dev. Adding to the end wouldn't make this much of a feature. Most users have already put another Python into their path, so if they decide they want to add 3.3 to it, this option barely helps them. Anyway, just about everything relating to this feature has been discussed on the above mentioned lists over a long period of time. The feature is implemented as is, it has already been released, and it's staying that way for 3.3. All we can do is tweak the GUI. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3561 ___ -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue3561 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15251] new.code and new.function crashes Python iterpretter
Jeffrey Harper jeff1.61...@gmail.com added the comment: Martin, Thanks for your response. I didn't know it was possible to pass freevars and cellvars to new.code. I think the documentation needs to be updated. The documentation for 2.7.3 located at http://docs.python.org/library/new.html?highlight=new#new.code is as follows: new.code(argcount, nlocals, stacksize, flags, codestring, constants, names, varnames, filename, name, firstlineno, lnotab) After I got your reply to this bug report I did help(new.code) and I see that it includes freevars and cellvars as optional arguments. -- assignee: - docs@python components: +Documentation -Library (Lib) nosy: +docs@python ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15251 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15247] io.open() is inconsistent re os.open()
Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com: -- nosy: +Arfrever ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15247 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15247] io.open() is inconsistent re os.open()
Juancarlo Añez apal...@gmail.com added the comment:
Note that attempting subsequent operations on the returned object do raise
IsADirectoryError.
import io
import os
d = io.open(os.open('.',0))
d.read()
Traceback (most recent call last):
File stdin, line 1, in module
IsADirectoryError: [Errno 21] Is a directory
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[issue15033] Different exit status when using -m
Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com: -- nosy: +Arfrever ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15033 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15020] default value for progname in pythonrun.c should be python3 for Python 3
Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com added the comment: Maybe it would be better to use Lpython3.2 for Python 3.2 and Lpython3.3 for Python 3.3. -- nosy: +Arfrever ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15020 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15242] PyImport_GetMagicTag() should use the same const char * as sys.implementation.cache_tag
Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com: -- nosy: +Arfrever ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15242 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15245] ast.literal_eval fails on some literals
Benjamin Peterson benja...@python.org added the comment: I don't think literal_eval should handle anything which is not syntax. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15245 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15033] Different exit status when using -m
Roundup Robot devn...@psf.upfronthosting.co.za added the comment: New changeset fcbd3bda7c0f by Senthil Kumaran in branch '3.2': Fix issue # 15033 - Return the proper exitcode for failure when modules are invoked using -m switch. Patch contributed by Jeff Knupp http://hg.python.org/cpython/rev/fcbd3bda7c0f New changeset 1186d68715cc by Senthil Kumaran in branch 'default': Fix issue # 15033 - Return the proper exitcode for failure when modules are invoked using -m switch. Patch contributed by Jeff Knupp http://hg.python.org/cpython/rev/1186d68715cc -- nosy: +python-dev ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15033 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15033] Different exit status when using -m
Roundup Robot devn...@psf.upfronthosting.co.za added the comment: New changeset 55b3de6d701e by Senthil Kumaran in branch '2.7': Fix closes issue # 15033 - Return the proper exitcode for failure when modules are invoked using -m switch. Patch contributed by Jeff Knupp http://hg.python.org/cpython/rev/55b3de6d701e -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15033 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15033] Different exit status when using -m
Senthil Kumaran sent...@uthcode.com added the comment: Thanks for the patch Jeff and thanks for the guidance, Nick. Committed this in all branches. -- nosy: +orsenthil resolution: - fixed stage: patch review - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15033 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15250] document that filecmp.dircmp comparisons are shallow
Changes by Éric Araujo mer...@netwok.org: -- stage: - needs patch versions: +Python 2.7, Python 3.2 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15250 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue12535] Chained tracebacks are confusing because the first traceback is minimal
Nick Coghlan ncogh...@gmail.com added the comment:
I've thought of a different approach to this which should be less hazardous to
doctests: include the truncation warning in the *traceback* section, rather
than in the header. doctests already ignore the details of that section because
checking it is too fragile.
cc'ing Georg because I think this a potentially big win for the usability of
chained tracebacks, but also think it is dubious from a feature vs fix point of
view.
With the change I'm considering, truncated tracebacks would look something like:
Traceback (most recent call last):
truncated: another exception occurred
File /home/rdmurray/python/email6/Lib/email/message.py, line 466, in
__getattr__
return getattr(self._headers, key)
AttributeError: '_Header_List' object has no attribute 'header_factory'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File stdin, line 1, in module
File /home/rdmurray/python/email6/Lib/mailbox.py, line 1631, in set_flags
self.replace_header('Status', status_flags)
File /home/rdmurray/python/email6/Lib/email/message.py, line 495, in
replace_header
print('rep', self.header_factory)
File /home/rdmurray/python/email6/Lib/email/message.py, line 469, in
__getattr__
self.__class__.__name__, key))
AttributeError: 'mboxMessage' object has no attribute 'header_factory'
--
nosy: +georg.brandl
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[issue15249] email.generator.BytesGenerator doesn't mangle From lines when non-ASCII bytes are present
Petri Lehtinen pe...@digip.org added the comment: Attached a test case that fails. -- keywords: +patch Added file: http://bugs.python.org/file26258/issue115249_test.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15249 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15222] mailbox.mbox writes without empty line after each message
Petri Lehtinen pe...@digip.org added the comment: Well, by appending newmail to the mailbox, you effectively break the next-to-last message by not inserting a newline after it. This can also be achieved by adding a message that doesn't end in a newline to the mbox (using the mailbox module). The real bug is that mailbox doesn't insert an empty line after each message, which it should do even if the message doesn't end in a newline. This breaks appending new messages (either by cat message mbox or by mailbox.py itself), and it might also break mbox parsing in other programs that search for starts of messages using \n\nFrom . -- components: +email nosy: +barry, r.david.murray ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15222 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
