Good evening! I am trying to install Python , however is me presenting
Error 0x80070570 saying that the folder or file is corrupted or unreadable.
is attached the log file with the aforementioned error , already realized
some procedures did not work .. procedures such as error correction,
defragmen
On Thu, 31 Dec 2015 04:02 pm, Rick Johnson wrote:
> On Wednesday, December 30, 2015 at 9:51:48 PM UTC-6, Steven D'Aprano
> wrote:
>> Fifteen years later, and Tim Peters' Stupid Python Trick is still the
>> undisputed champion!
>
> And should we be happy about that revelation, or sad?
Yes!
--
On 31Dec2015 16:12, Steven D'Aprano wrote:
On Thu, 31 Dec 2015 03:03 pm, Cameron Simpson wrote:
Steven D'Aprano (that's me) wrote this:
Whereas if _validate does what it is supposed to do, and is working
correctly, you will see:
Traceback (most recent call last):
File "spam", line 19, in this
On Thu, 31 Dec 2015 03:03 pm, Cameron Simpson wrote:
[...]
Steven D'Aprano (that's me) wrote this:
>>Whereas if _validate does what it is supposed to do, and is working
>>correctly, you will see:
>>
>>Traceback (most recent call last):
>> File "spam", line 19, in this
>> File "spam", line 29, in
On Wednesday, December 30, 2015 at 9:51:48 PM UTC-6, Steven D'Aprano wrote:
> Fifteen years later, and Tim Peters' Stupid Python Trick is still the
> undisputed champion!
And should we be happy about that revelation, or sad?
--
https://mail.python.org/mailman/listinfo/python-list
On Thu, 31 Dec 2015 12:44 pm, Ben Finney wrote:
> Steven D'Aprano writes:
>
>> Traceback (most recent call last):
>> File "spam", line 19, in this
>> File "spam", line 29, in that
>> File "spam", line 39, in other
>> File "spam", line 5, in _validate
>> ThingyError: ...
>>
>> and the rea
On 31Dec2015 12:26, Steven D'Aprano wrote:
On Thu, 31 Dec 2015 11:38 am, Chris Angelico wrote:
[... functions calling common _validate function ...]
But when the argument checking fails, the traceback shows the error
occurring in _validate, not eggs or spam. (Naturally, since that is where
the
On 12/30/2015 7:09 PM, Steven D'Aprano wrote:
I have a lot of functions that perform the same argument checking each time:
def spam(a, b):
if condition(a) or condition(b): raise TypeError
if other_condition(a) or something_else(b): raise ValueError
if whatever(a): raise SomethingE
Stolen^W Inspired from a post by Tim Peters back in 2001:
https://mail.python.org/pipermail/python-dev/2001-January/011911.html
Suppose you have a huge string, and you want to quote it. Here's the obvious
way:
mystring = "spam"*10
result = '"' + mystring + '"'
But that potentially involve
On Thu, Dec 31, 2015 at 12:26 PM, Steven D'Aprano wrote:
> Traceback (most recent call last):
> File "spam", line 19, in this
> File "spam", line 29, in that
> File "spam", line 39, in other
> ThingyError: ...
>
>
> I think this is a win for debuggability. (Is that a word?) But it's a bit
>
Steven D'Aprano writes:
> Traceback (most recent call last):
> File "spam", line 19, in this
> File "spam", line 29, in that
> File "spam", line 39, in other
> File "spam", line 5, in _validate
> ThingyError: ...
>
> and the reader has to understand the internal workings of _validate
> su
On Thu, 31 Dec 2015 11:38 am, Chris Angelico wrote:
> On Thu, Dec 31, 2015 at 11:09 AM, Steven D'Aprano
> wrote:
>> I have a lot of functions that perform the same argument checking each
>> time:
>>
>> def spam(a, b):
>> if condition(a) or condition(b): raise TypeError
>> if other_conditi
On Thu, Dec 31, 2015 at 11:09 AM, Steven D'Aprano wrote:
> I have a lot of functions that perform the same argument checking each time:
>
> def spam(a, b):
> if condition(a) or condition(b): raise TypeError
> if other_condition(a) or something_else(b): raise ValueError
> if whatever(a)
On Wed, Dec 30, 2015 at 3:54 PM, Charles T. Smith
wrote:
> On Wed, 30 Dec 2015 13:40:44 -0700, Ian Kelly wrote:
>
>> On Wed, Dec 30, 2015 at 9:58 AM, Charles T. Smith
>>> The problem is that then triggers the __getitem__() method and I don't
>>> know how to get to the attributes without triggering
Steven D'Aprano writes:
> I have a lot of functions that perform the same argument checking each
> time:
Not an answer to the question you ask, but: Have you tried the data
validation library “voluptuous”?
Voluptuous, despite the name, is a Python data validation library.
It is primaril
Steven D'Aprano writes:
> On Thu, 31 Dec 2015 10:13 am, Ben Finney wrote:
>
> > You may be familiar with other languages where the distinction
> > between “attribute of an object” is not distinct from “item in a
> > dictionary”. Python is not one of those languages; the distinction
> > is real an
Steven D'Aprano writes:
> def _validate(a, b):
> if condition(a) or condition(b): return TypeError
> ...
> Obviously this doesn't work now, since raise None is an error, but if it did
> work, what do you think?
Never occurred to me. But in some analogous situations I've caught
the exception
I have a lot of functions that perform the same argument checking each time:
def spam(a, b):
if condition(a) or condition(b): raise TypeError
if other_condition(a) or something_else(b): raise ValueError
if whatever(a): raise SomethingError
...
def eggs(a, b):
if condition(a) o
On Wed, 30 Dec 2015 10:51 pm, Charles T. Smith wrote:
> Hi,
>
> How can I get *all* the names of an object's attributes?
In the most general case, you cannot.
Classes can define a __getattr__ method (and a __getattribute__ method, for
new-style classes only) which implement dynamic attributes
On Thu, 31 Dec 2015 10:13 am, Ben Finney wrote:
> You may be familiar with other languages where the distinction between
> “attribute of an object” is not distinct from “item in a dictionary”.
> Python is not one of those languages; the distinction is real and
> important.
I'm not sure what dist
On Thu, 31 Dec 2015 10:13:53 +1100, Ben Finney wrote:
> "Charles T. Smith" writes:
>
>> I don't understand this distinction between an "attribute" and a "dict
>> item".
>
> When did you most recently work through the Python tutorial
> https://docs.python.org/3/tutorial/>> You may want to work t
"Charles T. Smith" writes:
> I don't understand this distinction between an "attribute" and a "dict
> item".
When did you most recently work through the Python tutorial
https://docs.python.org/3/tutorial/>> You may want to work through
it again, from start to finish and exercising each example,
Thanks much - both solutions work well for me
On Wednesday, December 30, 2015 at 2:57:50 PM UTC-8, Ben Finney wrote:
> kierkega...@gmail.com writes:
>
> > How do I get from here
> >
> > t = ('1024', '1280')
> >
> > to
> >
> > t = (1024, 1280)
>
> Both of those are assignment statements, so I
On Wed, 30 Dec 2015 22:54:44 +, Charles T. Smith wrote:
> But I concede I must be doing something fundamentally wrong because this
> assert is triggering:
> def __getattr__ (self, name):
> print "attrdict:av:__getattr__: entered for ", name
> assert name not in self.keys(),
On Wed, Dec 30, 2015 at 3:46 PM, wrote:
> How do I get from here
>
> t = ('1024', '1280')
>
> to
>
> t = (1024, 1280)
Deja vu: https://mail.python.org/pipermail/python-list/2015-December/701017.html
--
https://mail.python.org/mailman/listinfo/python-list
On Wed, 30 Dec 2015 13:40:44 -0700, Ian Kelly wrote:
> On Wed, Dec 30, 2015 at 9:58 AM, Charles T. Smith
>> The problem is that then triggers the __getitem__() method and I don't
>> know how to get to the attributes without triggering __getattr__().
>>
>> It's the interplay of the two that's killi
otaksoftspamt...@gmail.com writes:
> How do I get from here
>
> t = ('1024', '1280')
>
> to
>
> t = (1024, 1280)
Both of those are assignment statements, so I'm not sure what you mean
by “get from … to”. To translate one assignment statement to a different
assignment statement, re-write the stat
On Thu, Dec 31, 2015 at 9:46 AM, wrote:
> How do I get from here
>
> t = ('1024', '1280')
>
> to
>
> t = (1024, 1280)
>
>
> Thanks for all help!
t = (int(t[0]), int(t[1]))
If the situation is more general than that, post your actual code and
we can help out more. Working with a single line isn'
How do I get from here
t = ('1024', '1280')
to
t = (1024, 1280)
Thanks for all help!
--
https://mail.python.org/mailman/listinfo/python-list
On Thu, Dec 31, 2015 at 8:02 AM, Cameron Simpson wrote:
> On 30Dec2015 21:14, Carlos Barera wrote:
>>
>> Trying to run a specific command (ibstat) installed in /usr/sbin on an
>> Ubuntu 15.04 machine, using subprocess.check_output and getting "/bin/sh:
>> /usr/sbin/ibstat: No such file or direct
On Thu, Dec 31, 2015 at 4:04 AM, Random832 wrote:
> On Wed, Dec 30, 2015, at 07:50, Chris Angelico wrote:
>> I believe that's true, yes. The meaning of "by default" there is that
>> "class X: pass" will make an old-style class. All built-in types are
>> now new-style classes.
>
> To be clear, AFAI
On 30Dec2015 21:14, Carlos Barera wrote:
Trying to run a specific command (ibstat) installed in /usr/sbin on an
Ubuntu 15.04 machine, using subprocess.check_output and getting "/bin/sh:
/usr/sbin/ibstat: No such file or directory"
I tried the following:
- running the command providing full pat
On 12/29/2015 1:00 PM, Terry Reedy wrote:
I updated to 2.7.11, 3.4.4, and 3.5.1 a couple of weeks ago, so the
timestamps are all fresh. So I don't know what happened with 3.4.3
timestamps from last April and whether Windows itself touches the
files. I just tried importing a few and Python did
On 12/29/2015 5:56 AM, D'Arcy J.M. Cain wrote:
On Tue, 29 Dec 2015 00:01:00 -0800
Glenn Linderman wrote:
OK, so I actually renamed it instead of zapping it. Them, actually,
Really, just zap them. They are object code. Even if you zap a
perfectly good .pyc file a perfectly good one will be r
On Wed, Dec 30, 2015 at 9:58 AM, Charles T. Smith
wrote:
> On Wed, 30 Dec 2015 08:35:57 -0700, Ian Kelly wrote:
>
>> On Dec 30, 2015 7:46 AM, "Charles T. Smith"
>> wrote:
>>> As is so often the case, in composing my answer to your question, I
>>> discovered a number of problems in my class (e.g.
Hi,
Trying to run a specific command (ibstat) installed in /usr/sbin on an
Ubuntu 15.04 machine, using subprocess.check_output and getting "/bin/sh:
/usr/sbin/ibstat: No such file or directory"
I tried the following:
- running the command providing full path
- running with executable=bash
- runn
On Wed, Dec 30, 2015 at 3:06 PM, Joel Goldstick
wrote:
>
>
> On Wed, Dec 30, 2015 at 1:21 PM, Won Chang wrote:
>
>>
>> i have these task which i believe i have done well to some level
>>
>> Create a function get_algorithm_result to implement the algorithm below
>>
>> 1- Get a list of numbers L1,
On Wed, Dec 30, 2015 at 8:24 AM, Radhika Grover wrote:
> Hi,
>
> I don't see any package available under
> https://pypi.python.org/simple/PEAK-Rules/. Could you please let me know
> if it has seen a change recently.
>
> I need PEAK-Rules>=0.5a1.dev-r2600 using easy_install default behavior.
> Any
On Wed, Dec 30, 2015 at 1:21 PM, Won Chang wrote:
>
> i have these task which i believe i have done well to some level
>
> Create a function get_algorithm_result to implement the algorithm below
>
> 1- Get a list of numbers L1, L2, L3LN as argument 2- Assume L1 is the
> largest, Largest = L1
i have these task which i believe i have done well to some level
Create a function get_algorithm_result to implement the algorithm below
1- Get a list of numbers L1, L2, L3LN as argument 2- Assume L1 is the
largest, Largest = L1 3- Take next number Li from the list and do the following
4-
On Wed, 30 Dec 2015 08:35:57 -0700, Ian Kelly wrote:
> On Dec 30, 2015 7:46 AM, "Charles T. Smith"
> wrote:
>> As is so often the case, in composing my answer to your question, I
>> discovered a number of problems in my class (e.g. I was calling
>> __getitem__() myself!), but I'm puzzled now how
On Wed, Dec 30, 2015, at 07:50, Chris Angelico wrote:
> I believe that's true, yes. The meaning of "by default" there is that
> "class X: pass" will make an old-style class. All built-in types are
> now new-style classes.
To be clear, AFAIK, built-in types were never old-style classes - prior
to t
On Dec 30, 2015 7:46 AM, "Charles T. Smith" wrote:
> As is so often the case, in composing my answer to your question, I discovered
> a number of problems in my class (e.g. I was calling __getitem__() myself!),
> but
> I'm puzzled now how to proceed. I thought the way you avoid triggering
> __g
On Wed, 30 Dec 2015 14:10:14 +, Mark Lawrence wrote:
> On 30/12/2015 11:51, Charles T. Smith wrote:
>> Hi,
>>
>> Does anyone know *why* the __members__ method was deprecated, to be
>> replaced by dir(), which doesn't tell the truth (if only it took an
>> optional parameter to say: "be truthful
On Thu, 31 Dec 2015 00:11:24 +1100, Chris Angelico wrote:
> On Wed, Dec 30, 2015 at 11:57 PM, Charles T. Smith
> wrote:
>> Hello,
>>
>> I thought __getitem__() was invoked when an object is postfixed with an
>> expression in brackets:
>>
>> - abc[n]
>>
>> and __getattr__() was invoked when an o
On 12/30/2015 8:18 AM, Steven D'Aprano wrote:
We know that Python floats are equivalent to C doubles,
Yes
which are 64-bit IEEE-754 floating point numbers.
I believe that this was not true on all systems when Python was first
released. Not all 64-bit floats divided them the same way. I b
On Thu, Dec 31, 2015 at 12:31 AM, Charles T. Smith
wrote:
> Okay, thank you. I'm trying to understand your program.
>
> Unfortunately, I haven't gotten the same output you had, using python 2.6
> or 2.7. Maybe I haven't been able to restore the indentation correctly
> after having been filtered
Steven D'Aprano :
> Nevertheless, it's well known (in the sense that "everybody knows")
> that Python floats are equivalent to C 64-bit IEEE-754 doubles. How
> safe is that assumption?
You'd need to have it in writing, wouldn't you?
The only spec I know of promises no such thing:
Floating po
On 30/12/2015 13:31, Charles T. Smith wrote:
I wonder what the difference is between vars() and items()
Not much. From https://docs.python.org/3/library/functions.html#vars
vars([object])
Return the __dict__ attribute for a module, class, instance, or any
other object with a __dict__
On 30/12/2015 11:51, Charles T. Smith wrote:
Hi,
Does anyone know *why* the __members__ method was deprecated, to be
replaced by dir(), which doesn't tell the truth (if only it took an
optional parameter to say: "be truthful")
https://bugs.python.org/issue456420
https://bugs.python.org/issue44
On Wed, 30 Dec 2015 23:50:03 +1100, Chris Angelico wrote:
> On Wed, Dec 30, 2015 at 11:40 PM, Charles T. Smith
> wrote:
>> Oh!
>>
>> Although the referenced doc says:
>>
>> "For compatibility reasons, classes are still old-style by default."
>>
>> is it true that dictionaries are by default alw
Hi,
I don't see any package available under
https://pypi.python.org/simple/PEAK-Rules/. Could you please let me know if it
has seen a change recently.
I need PEAK-Rules>=0.5a1.dev-r2600 using easy_install default behavior.
Any help is appreciated. Thanks in advance!
- Radhika
--
https://mail
We know that Python floats are equivalent to C doubles, which are 64-bit
IEEE-754 floating point numbers.
Well, actually, C doubles are not strictly defined. The only promise the C
standard makes is that double is no smaller than float. (That's C float,
not Python float.) And of course, not all Py
On Wed, Dec 30, 2015 at 11:57 PM, Charles T. Smith
wrote:
> Hello,
>
> I thought __getitem__() was invoked when an object is postfixed with an
> expression in brackets:
>
> - abc[n]
>
> and __getattr__() was invoked when an object is postfixed with an dot:
>
> - abc.member
That would be norma
Hello,
I thought __getitem__() was invoked when an object is postfixed with an
expression in brackets:
- abc[n]
and __getattr__() was invoked when an object is postfixed with an dot:
- abc.member
but my __getitem__ is being invoked at this time, where there's no
subscript (going into a s
On Wed, 30 Dec 2015 03:07 pm, Rustom Mody wrote:
> By some coincidence was just reading:
> from http://www.wordyard.com/2006/10/18/dijkstra-humble/
>
> which has the following curious extract.
> [Yeah its outlandish]
>
> --
> I consider the absolute wo
On Wed, Dec 30, 2015 at 11:40 PM, Charles T. Smith
wrote:
> Oh!
>
> Although the referenced doc says:
>
> "For compatibility reasons, classes are still old-style by default."
>
> is it true that dictionaries are by default always new-style objects?
>
> (PDB)c6 = { "abc" : 123, "def" : 456}
>
>
On Wed, 30 Dec 2015 11:51:19 +, Charles T. Smith wrote:
> Hi,
>
> How can I get *all* the names of an object's attributes? I have legacy
> code with mixed new style classes and old style classes and I need to
> write methods which deal with both. That's the immediate problem, but
> I'm alwa
On Wed, Dec 30, 2015 at 11:16 PM, Charles T. Smith
wrote:
> I'm glad I discovered __mro__(), but how can I do the same thing for old-
> style classes?
You should be able to track through __bases__ and use vars() at every level:
>>> class X: pass
...
>>> class Y(X): pass
...
>>> class Z(Y): pass
On Wed, 30 Dec 2015 11:51:19 +, Charles T. Smith wrote:
> Hi,
>
> How can I get *all* the names of an object's attributes? I have legacy
> code with mixed new style classes and old style classes and I need to
> write methods which deal with both. That's the immediate problem, but
> I'm alwa
On Wed, Dec 30, 2015 at 10:51 PM, Charles T. Smith
wrote:
> Does anyone know *why* the __members__ method was deprecated, to be
> replaced by dir(), which doesn't tell the truth (if only it took an
> optional parameter to say: "be truthful")
Does vars() help here? It works on old-style and new-st
Hi,
How can I get *all* the names of an object's attributes? I have legacy
code with mixed new style classes and old style classes and I need to
write methods which deal with both. That's the immediate problem, but
I'm always running into the need to understand how objects are linked, in
par
On Wednesday, December 30, 2015 at 2:30:40 AM UTC, Karim wrote:
> On 30/12/2015 00:21, xeon Mailinglist wrote:
> > I have my source code inside the directory `medusa`, and my unit tests
> > inside `tests` dir. Both dirs are inside `medusa-2.0` dir. Here is my file
> > structure [1].
> >
> > When
Is it possible to fix the documentation?
https://twistedmatrix.com/trac/browser/tags/releases/twisted-15.5.0/NEWS?format=raw
On Mon, Dec 7, 2015 at 4:06 PM, Amber "Hawkie" Brown
wrote:
> Hi everyone!
>
> It's been brought to my attention that I misworded something in the release
> notes and it s
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