On Wednesday 18 January 2017 15:42, Ethan Furman wrote:
[...]
> Both those cases are good candidates for disallowing subclassing.
I've given a metaclass that disallows subclassing:
class MyClass(MyParent, metaclass=FinalMeta):
...
Ethan took that one step further by giving a class you inhe
On 1/17/2017 11:32 PM, Michael Torrie wrote:
On 01/17/2017 07:12 PM, Steven D'Aprano wrote:
On Wednesday 18 January 2017 12:30, Michael Torrie wrote:
Yes googling error messages is a good idea. However the SO link seems to
describe this problem as a missing DLL, probably the VS 2015 runtime
re
On 01/17/2017 01:37 AM, Antoon Pardon wrote:
Op 17-01-17 om 08:05 schreef Steven D'Aprano:
I wish to emulate a "final" class using Python, similar to bool:
py> class MyBool(bool):
... pass
...
Traceback (most recent call last):
File "", line 1, in
TypeError: type 'bool' is not an acce
On 01/17/2017 07:12 PM, Steven D'Aprano wrote:
> On Wednesday 18 January 2017 12:30, Michael Torrie wrote:
>
>> Yes googling error messages is a good idea. However the SO link seems to
>> describe this problem as a missing DLL, probably the VS 2015 runtime
>> redistributable library. If this is t
On Wednesday 18 January 2017 12:30, Michael Torrie wrote:
> Yes googling error messages is a good idea. However the SO link seems to
> describe this problem as a missing DLL, probably the VS 2015 runtime
> redistributable library. If this is the problem, why isn't Python's
> installer bundling th
On Tuesday 17 January 2017 20:37, Antoon Pardon wrote:
> Op 17-01-17 om 08:05 schreef Steven D'Aprano:
>> I wish to emulate a "final" class using Python, similar to bool:
>>
>> py> class MyBool(bool):
>> ... pass
>> ...
>> Traceback (most recent call last):
>> File "", line 1, in
>> TypeErr
On 01/17/2017 03:31 PM, Terry Reedy wrote:
> On 1/17/2017 1:23 PM, Earl Izydore wrote:
>> I having problems installing Python 3.6. I was using Python 2.7
>> successfully.
>>
>> Today, I installed python-3.6.0.exe.
>
> Which binary? from where?
>
>> At the end of the installation I got a message
On Wed, 18 Jan 2017 06:14 am, Ethan Furman wrote:
> On 01/16/2017 11:32 PM, Steven D'Aprano wrote:
>> On Tuesday 17 January 2017 18:05, Steven D'Aprano wrote:
>>
>>> I wish to emulate a "final" class using Python, similar to bool:
>>
>> I may have a solution: here's a singleton (so more like None
On Tue, 17 Jan 2017 08:54 pm, Erik wrote:
> Hi Steven,
>
> On 17/01/17 07:05, Steven D'Aprano wrote:
>> I wish to emulate a "final" class using Python, similar to bool:
>
> [snip]
>
>> It doesn't have to be absolutely bulletproof, but anyone wanting to
>> subclass my class should need to work f
On 1/17/2017 1:23 PM, Earl Izydore wrote:
I having problems installing Python 3.6. I was using Python 2.7
successfully.
Today, I installed python-3.6.0.exe.
Which binary? from where?
At the end of the installation I got a message saying the
installation was successful.
When attempt to star
On 01/16/2017 11:32 PM, Steven D'Aprano wrote:
On Tuesday 17 January 2017 18:05, Steven D'Aprano wrote:
I wish to emulate a "final" class using Python, similar to bool:
I may have a solution: here's a singleton (so more like None than bools) where
instantiating the class returns the singleton
On Jan 16, 2017, at 11:34 PM, Peter Otten <__pete...@web.de> wrote:
>
> Gregory Ewing wrote:
>
>> Israel Brewster wrote:
>>> The problem is that, from time to time, I can't get a connection, the
>>> result being that cursor is None,
>>
>> That's your problem right there -- you want a better-beha
On Jan 16, 2017, at 8:01 PM, Gregory Ewing wrote:
>
> Israel Brewster wrote:
>> The problem is that, from time to time, I can't get a connection, the result
>> being that cursor is None,
>
> That's your problem right there -- you want a better-behaved
> version of psql_cursor().
>
> def get_psq
On Jan 16, 2017, at 1:27 PM, Terry Reedy wrote:
>
> On 1/16/2017 1:06 PM, Israel Brewster wrote:
>> I generally use context managers for my SQL database connections, so I can
>> just write code like:
>>
>> with psql_cursor() as cursor:
>>
>>
>> And the context manager takes care of making
I having problems installing Python 3.6. I was using Python 2.7 successfully.
Today, I installed python-3.6.0.exe. At the end of the installation I got a
message saying the installation was successful.
When attempt to start Python, I get the following Application Error:
The application was una
On Wed, Jan 18, 2017 at 4:06 AM, Ian Kelly wrote:
>> What's the official way to say to asyncio "here's a listening socket,
>> start managing it for me"?
>
> I haven't tried this but create_server takes a "sock" keyword-argument.
>
> https://docs.python.org/3/library/asyncio-eventloop.html#asyncio.
On 2017-01-17 17:57, Chris Angelico wrote:
> If I write a web server using asyncio (and the aiohttp package), I can
> spin up the server with:
>
> await loop.create_server(app.make_handler(), "0.0.0.0", 8080)
>
> This works fine for a high port, but if I want to bind to port 80, I
> need to eithe
On Tue, Jan 17, 2017 at 9:57 AM, Chris Angelico wrote:
> If I write a web server using asyncio (and the aiohttp package), I can
> spin up the server with:
>
> await loop.create_server(app.make_handler(), "0.0.0.0", 8080)
>
> This works fine for a high port, but if I want to bind to port 80, I
> ne
If I write a web server using asyncio (and the aiohttp package), I can
spin up the server with:
await loop.create_server(app.make_handler(), "0.0.0.0", 8080)
This works fine for a high port, but if I want to bind to port 80, I
need to either start as root and then drop privileges, or get given
th
On Tuesday, January 17, 2017 at 11:11:27 AM UTC, Peter Otten wrote:
> Rotwang wrote:
>
> > Here's something odd I've found with the tokenize module: tokenizing 'if
> > x:\ny' and then untokenizing the result adds '\\\n' to the end.
> > Attempting to tokenize the result again fails because of t
Rotwang wrote:
> Here's something odd I've found with the tokenize module: tokenizing 'if
> x:\ny' and then untokenizing the result adds '\\\n' to the end.
> Attempting to tokenize the result again fails because of the backslash
> continuation with nothing other than a newline after it. On the
On Tuesday, January 17, 2017 at 2:47:03 AM UTC, Steven D'Aprano wrote:
> On Tuesday 17 January 2017 09:42, Rotwang wrote:
>
> > Here's something odd I've found with the tokenize module:
> [...]
> > Copypasted from iPython:
>
> It's not impossible that iPython is doing something funny with the to
Hi Steven,
On 17/01/17 07:05, Steven D'Aprano wrote:
I wish to emulate a "final" class using Python, similar to bool:
[snip]
It doesn't have to be absolutely bulletproof, but anyone wanting to subclass my
class should need to work for it, which hopefully will tell them that they're
doing som
Op 17-01-17 om 08:05 schreef Steven D'Aprano:
> I wish to emulate a "final" class using Python, similar to bool:
>
> py> class MyBool(bool):
> ... pass
> ...
> Traceback (most recent call last):
> File "", line 1, in
> TypeError: type 'bool' is not an acceptable base type
>
>
> It doesn't h
On behalf of the Python development community and the Python 3.4 and
Python 3.5 release teams, I'm delighted to announce the availability of
Python 3.4.6 and Python 3.5.3.
Python 3.4 is now in "security fixes only" mode. This is the final
stage of support for Python 3.4. Python 3.4 now onl
Gregory Ewing wrote:
> Israel Brewster wrote:
>> The problem is that, from time to time, I can't get a connection, the
>> result being that cursor is None,
>
> That's your problem right there -- you want a better-behaved
> version of psql_cursor().
>
> def get_psql_cursor():
> c = psql_curso
26 matches
Mail list logo
