On Friday, 23 October 2020 07:36:39 UTC+2, Greg Ewing wrote:
> On 23/10/20 2:13 pm, Julio Di Egidio wrote:
> > I am now thinking whether I could achieve the "standard"
> > behaviour via another approach, say with decorators, somehow
> > intercepting calls to __new__... maybe.
>
> I'm inclined to
On 23/10/20 2:13 pm, Julio Di Egidio wrote:
I am now thinking whether I could achieve the "standard"
behaviour via another approach, say with decorators, somehow
intercepting calls to __new__... maybe.
I'm inclined to step back and ask -- why do you care about this?
Would it actually do any ha
> On Oct 22, 2020, at 5:51 PM, Pasha Stetsenko wrote:
>
> Dear Python gurus,
>
> I'm a maintainer of a python library "datatable" (can be installed from
> PyPi), and i've been recently trying to debug a memory leak that occurs in
> my library.
> The program that exposes the leak is quite simp
Lammie Jonson於 2020年10月23日星期五 UTC+8上午5時20分45秒寫道：
> Thanks,
>
> Yes, I have some sense about how to do job interviews and market myself
> which is always an ongoing process.
>
> I also just have an interest in different technologies that I may want to
> investigate as I can get bored with cert
On Fri, Oct 23, 2020 at 12:20 PM Pasha Stetsenko wrote:
> I'm currently not sure where to go from here. Is there something wrong with
> my python object that prevents it from being correctly processed by the
> Python runtime? Because this doesn't seem to be the usual case of
> incrementing the ref
On 10/22/2020 2:58 PM, Lammie Jonson wrote:
I looked at tkinter which seems to have quite a few examples out there, but
when I searched indeed.com for tkinter and wxpython it appeared that there was
hardly any job listings mentioning those. Why is that ?
I think that commercial desktop appli
Dear Python gurus,
I'm a maintainer of a python library "datatable" (can be installed from
PyPi), and i've been recently trying to debug a memory leak that occurs in
my library.
The program that exposes the leak is quite simple:
```
import datatable as dt
import gc # just in case
def leak(n=10**
On 2020-10-22 at 12:50:43 -0700,
Rich Shepard wrote:
> On Thu, 22 Oct 2020, Lammie Jonson wrote:
> > I looked at tkinter which seems to have quite a few examples out
> > there, but when I searched indeed.com for tkinter and wxpython it
> > appeared that there was hardly any job listings mentioni
On Thursday, 22 October 2020 23:04:25 UTC+2, Ethan Furman wrote:
> On 10/22/20 9:25 AM, Julio Di Egidio wrote:
>
> > Now, I do read in the docs that that is as intended,
> > but I am not understanding the rationale of it: why
> > only if there are abstract methods defined in an ABC
> > class is i
Thanks,
Yes, I have some sense about how to do job interviews and market myself which
is always an ongoing process.
I also just have an interest in different technologies that I may want to
investigate as I can get bored with certain things a little at times. If some
technology seems a lit
On Fri, Oct 23, 2020 at 8:39 AM Michael Torrie wrote:
> > I was going to look at something like tensorflow perhaps, though I am
> > not sure if machine learning is that easy to pickup or not
>
> Not sure anything difficult and worthwhile, even if it is popular and in
> demand, is something you can
On 10/22/20 12:58 PM, Lammie Jonson wrote:
>
> I have been a rails developer as well as JS/react. I had wanted to
> look at python a bit due to it's popularity.
>
> I looked at tkinter which seems to have quite a few examples out
> there, but when I searched indeed.com for tkinter and wxpython it
Hi Lammie,
On Thu, Oct 22, 2020 at 10:03 PM Lammie Jonson wrote:
>
> I looked at tkinter which seems to have quite a few examples out there,
> but when I searched indeed.com for tkinter and wxpython it appeared that
> there was hardly any job listings mentioning those. Why is that ?
>
My guess
On Thu, 22 Oct 2020, Lammie Jonson wrote:
I looked at tkinter which seems to have quite a few examples out there,
but when I searched indeed.com for tkinter and wxpython it appeared that
there was hardly any job listings mentioning those. Why is that ? It's a
bit of a demotivating factor to get
On 10/22/20 9:25 AM, Julio Di Egidio wrote:
Now, I do read in the docs that that is as intended,
but I am not understanding the rationale of it: why
only if there are abstract methods defined in an ABC
class is instantiation disallowed? IOW, why isn't
subclassing from ABC enough?
Let's say yo
On Thu, 22 Oct 2020 at 22:09, Marco Sulla
wrote:
> Not sure because I never tried or needed, but if no @abstractsomething in
> A is defined and your B class is a subclass of A, B should be an abstract
> class, not a concrete class.
>
Now I'm sure:
>>> from abc import ABC, abstractmethod
>>> cla
On Thu, 22 Oct 2020 at 18:31, Julio Di Egidio wrote:
> why
> only if there are abstract methods defined in an ABC
> class is instantiation disallowed?
>
Not sure because I never tried or needed, but if no @abstractsomething in A
is defined and your B class is a subclass of A, B should be an abst
I have been a rails developer as well as JS/react.
I had wanted to look at python a bit due to it's popularity.
I looked at tkinter which seems to have quite a few examples out there, but
when I searched indeed.com for tkinter and wxpython it appeared that there was
hardly any job listings m
On Fri, Oct 23, 2020 at 3:35 AM Grant Edwards wrote:
> Moving from 2.x to 3.x isn't too bad, but trying to maintain
> compatiblity with both is painful. At this point, I would probably
> just abandon 2.x.
>
Definitely. No point trying to support both when you're starting with
code from a Py3 exam
On 2020-10-22, Chris Angelico wrote:
> On Fri, Oct 23, 2020 at 12:15 AM Shaozhong SHI wrote:
>> What should I know or watch out if I decide to move from Python 2.7
>> to Python 3?
>
> Key issues? Well, for starters, you don't have to worry about whether
> your strings are Unicode or not. They ju
Hello guys,
I am professional programmer but quite new to Python,
and I am trying to get the grips of some peculiarities
of the language.
Here is a basic question: if I define an ABC class,
I can still instantiate the class unless there are
abstract methods defined in the class.
(In the typical
On Fri, Oct 23, 2020 at 12:15 AM Shaozhong SHI wrote:
>
> Thanks, Chris.
>
> What should I know or watch out if I decide to move from Python 2.7 to Python
> 3?
>
> What are the key issues? Syntax?
>
Keep it on-list please :)
Key issues? Well, for starters, you don't have to worry about whether
Never worked with ZFS, it sounds interesting. Anyway, IMHO it's much more
simple to save to disk also for debugging: you have not to extract the data
from the db if you need to inspect them.
On Thu, 22 Oct 2020 at 14:39, D'Arcy Cain wrote:
> On 10/22/20 7:23 AM, Marco Sulla wrote:
> > I would ad
On 10/22/20 7:23 AM, Marco Sulla wrote:
I would add that usually I do not recommend saving files on databases. I
usually save the file on the disk and the path and mime on a dedicated
table.
I used to do that because backing up the database became huge. Now I use
ZFS snapshots with send/recei
On Thu, Oct 22, 2020 at 8:28 PM Shaozhong SHI wrote:
>
> I found this last option is very interesting.
>
> Saving the dataframe to memory using StringIO
>
> https://naysan.ca/2020/06/21/pandas-to-postgresql-using-psycopg2-copy_from/
>
> But, testing shows
> unicode argument expected, got 'str'
>
>
I would add that usually I do not recommend saving files on databases. I
usually save the file on the disk and the path and mime on a dedicated
table.
--
https://mail.python.org/mailman/listinfo/python-list
From my understanding, `ast.arguments` and `inspect.Signature` are the
two builtin ways of defining the function name and arguments in a
structured way.
What I am creating is a way of configuring… well let's be specific to
my use-case. I am building a way to configure TensorFlow.
One which is very
Try to save it in a binary field on PG using hdf5:
https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.to_hdf.html
On Thu, 22 Oct 2020 at 11:29, Shaozhong SHI wrote:
> I found this last option is very interesting.
>
> Saving the dataframe to memory using StringIO
>
> htt
I found this last option is very interesting.
Saving the dataframe to memory using StringIO
https://naysan.ca/2020/06/21/pandas-to-postgresql-using-psycopg2-copy_from/
But, testing shows
unicode argument expected, got 'str'
Any working example for getting DataFrame into a PostgreSQL table direc
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