Em 01-02-2012 01:39, Paulo da Silva escreveu:
> Hi!
>
> What is the best way to iterate thru a huge list having the 1st element
> a different process? I.e.:
>
> process1(mylist[0])
> for el in mylist[1:]:
> process2(el)
>
> This way mylist is almost duplicat
Em 01-02-2012 03:16, Paulo da Silva escreveu:
> Em 01-02-2012 01:39, Paulo da Silva escreveu:
>> Hi!
>>
>> What is the best way to iterate thru a huge list having the 1st element
>> a different process? I.e.:
>>
>> process1(mylist[0])
>> for el in my
Em 01-02-2012 04:55, Cameron Simpson escreveu:
> On 01Feb2012 03:34, Paulo da Silva wrote:
> | BTW, iter seems faster than iterating thru mylist[1:]!
>
> I would hope the difference can be attributed to the cost of copying
> mylist[1:].
I don't think so. I tried s
Hi all.
I have a python extension (bindings for a C lib - no swig) and I would
like to write a setup.py to build a source distribution pack.
The extension consists of 3 files:
foo.h
foo.c
foo.py
that are placed in a eclipse directory
/home//ECLIPSE/workspace/ext/src
foo.h+foo.c are to be compile
Hi all.
I want to have dates as major ticks labels of X axis.
This fragment of code works fine except that I need more dates to appear
instead the 6 I am getting. The number of dates in dtsd is for ex. 262.
Thanks for any help.
BTW, I got most of this code from some site on the internet.
...
Às 09:17 de 10-01-2018, Thomas Jollans escreveu:
On 2018-01-10 05:22, Paulo da Silva wrote:
Hi all.
...
It's a bit hard to tell without a working example, but I think you'll
want to set a tick locator, e.g. something like
ax0.xaxis.set_major_locator(matplotlib.ticker.Multipl
Hi all!
I'm having the following problem. Consider the code (the commented or
the not commented which I think do the same things):
#for col in missing_cols:
#df[col] = np.nan
df=df.copy()
df[missing_cols]=np.nan
df has about 2 cols and len(missing_cols) is about 18000.
I'm getting l
Às 16:40 de 20/06/22, Dennis Lee Bieber escreveu:
On Mon, 20 Jun 2022 15:54:29 +0100, Paulo da Silva
declaimed the following:
Às 15:07 de 19/06/22, jan Anja escreveu:
Dude, it's called CPython for a reason.
IMHO CPython means Core Python, not C Python.
It is, as I recall, a
Às 15:07 de 19/06/22, jan Anja escreveu:
Dude, it's called CPython for a reason.
IMHO CPython means Core Python, not C Python.
--
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Às 18:19 de 20/06/22, Stefan Ram escreveu:
The same personality traits that make people react
to troll postings might make them spread unconfirmed
ideas about the meaning of "C" in "CPython".
The /core/ of CPython is written in C.
CPython is the /canonical/ implementation of Pyth
Às 20:01 de 20/06/22, Paulo da Silva escreveu:
Às 18:19 de 20/06/22, Stefan Ram escreveu:
The same personality traits that make people react
to troll postings might make them spread unconfirmed
ideas about the meaning of "C" in "CPython".
The /core/ of CPy
Às 03:20 de 21/06/22, MRAB escreveu:
On 2022-06-21 02:33, Chris Angelico wrote:
On Tue, 21 Jun 2022 at 11:13, Paulo da Silva
wrote:
Às 20:01 de 20/06/22, Paulo da Silva escreveu:
> Às 18:19 de 20/06/22, Stefan Ram escreveu:
>> The same personality traits that make people react
Às 02:33 de 21/06/22, Chris Angelico escreveu:
On Tue, 21 Jun 2022 at 11:13, Paulo da Silva
wrote:
Às 20:01 de 20/06/22, Paulo da Silva escreveu:
Às 18:19 de 20/06/22, Stefan Ram escreveu:
The same personality traits that make people react
to troll postings might make them spread
Hi!
I implemented a part of a script to subtract n months from datetime.
Basically I subtracted n%12 from year and n//12 from the month adding 12
months when it goes<=0. Then used try when converting to datetime again.
So, if the day is for example 31 for a 30 days month it raises a
ValuError
me(*dtnow_t)
Any comments are welcome.
Thank you.
Paulo
On Tue, 2022-06-21 at 05:29 +0100, Paulo da Silva wrote:
Hi!
I implemented a part of a script to subtract n months from datetime.
Basically I subtracted n%12 from year and n//12 from the month adding
12
months when it goes<=0. Then used
Às 05:29 de 21/06/22, Paulo da Silva escreveu:
As a general response to some comments ...
Suppose we need to delete records from a database older than ...
Today, it's usual to specify days. For example you have to keep some gov
papers for 90 days. This seems to come from computers era. I
Às 20:25 de 22/06/22, Barry Scott escreveu:
On 22 Jun 2022, at 17:59, Paulo da Silva
wrote:
Às 05:29 de 21/06/22, Paulo da Silva escreveu:
As a general response to some comments ...
Suppose we need to delete records from a database older than ...
Today, it's usual to specify days
Às 19:47 de 22/06/22, Marco Sulla escreveu:
The package arrow has a simple shift method for months, weeks etc
https://arrow.readthedocs.io/en/latest/#replace-shift
At first look it seems pretty good! I didn't know it.
Thank you Marco.
Paulo
--
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Hi!
The simple question: How do I find the full path of a shell command
(linux), i.e. how do I obtain the corresponding of, for example,
"type rm" in command line?
The reason:
I have python program that launches a detached rm. It works pretty well
until it is invoked by cron! I suspect that f
Às 05:00 de 12/10/22, Paulo da Silva escreveu:
Hi!
The simple question: How do I find the full path of a shell command
(linux), i.e. how do I obtain the corresponding of, for example,
"type rm" in command line?
The reason:
I have python program that launches a detached rm. It wo
Às 17:22 de 12/10/22, Tilmann Hentze escreveu:
Paulo da Silva schrieb:
I have python program that launches a detached rm. It works pretty well
until it is invoked by cron! I suspect that for cron we need to specify
the full path.
Probably you could use os.unlink[1] with no problem.
No
Às 20:16 de 12/10/22, 2qdxy4rzwzuui...@potatochowder.com escreveu:
On 2022-10-12 at 17:43:18 +0100,
Paulo da Silva wrote:
Às 17:22 de 12/10/22, Tilmann Hentze escreveu:
Paulo da Silva schrieb:
I have python program that launches a detached rm. It works pretty well
until it is invoked by
Às 19:14 de 12/10/22, Jon Ribbens escreveu:
On 2022-10-12, Paulo da Silva wrote:
Às 05:00 de 12/10/22, Paulo da Silva escreveu:
Hi!
The simple question: How do I find the full path of a shell command
(linux), i.e. how do I obtain the corresponding of, for example,
"type rm" in co
Às 20:09 de 12/10/22, Antoon Pardon escreveu:
Op 12/10/2022 om 18:49 schreef Paulo da Silva:
Às 05:00 de 12/10/22, Paulo da Silva escreveu:
Hi!
The simple question: How do I find the full path of a shell command
(linux), i.e. how do I obtain the corresponding of, for example,
"type r
Às 22:38 de 12/10/22, Jon Ribbens escreveu:
On 2022-10-12, Jon Ribbens wrote:
On 2022-10-12, Paulo da Silva wrote:
Às 19:14 de 12/10/22, Jon Ribbens escreveu:
On 2022-10-12, Paulo da Silva wrote:
Às 05:00 de 12/10/22, Paulo da Silva escreveu:
Hi!
The simple question: How do I find the
Às 05:00 de 12/10/22, Paulo da Silva escreveu:
Hi!
The simple question: How do I find the full path of a shell command
(linux), i.e. how do I obtain the corresponding of, for example,
"type rm" in command line?
The reason:
I have python program that launches a detached rm. It wo
Hi all!
What is the correct way, if any, of documenting a function/method?
1.
def foo(a,b):
""" A description.
a: Whatever 1
b: Whatever 2
"""
...
2.
def foo(a,b):
""" A description.
a -- Whatever 1
b -- Whatever 2
"""
Hello!
I am in the process of "typing" of some of my scripts.
Using it should help a lot to avoid some errors.
But this is new for me and I'm facing some problems.
Let's I have the following code (please don't look at the program content):
f=None # mypy naturally assumes Optional(int) because
Às 21:58 de 22/10/22, Paulo da Silva escreveu:
Hi all!
What is the correct way, if any, of documenting a function/method?
Thank you all for the, valuable as usual, suggestions.
I am now able to make my choices.
Paulo
--
https://mail.python.org/mailman/listinfo/python-list
Às 21:36 de 23/10/22, Paulo da Silva escreveu:
Hello!
I am in the process of "typing" of some of my scripts.
Using it should help a lot to avoid some errors.
But this is new for me and I'm facing some problems.
Let's I have the following code (please don't look at the
Às 23:56 de 23/10/22, Cameron Simpson escreveu:
On 23Oct2022 21:36, Paulo da Silva
wrote:
I am in the process of "typing" of some of my scripts.
Using it should help a lot to avoid some errors.
But this is new for me and I'm facing some problems.
Let's I have the followin
Hi!
Consider this simple script ...
___
from typing import List, Optional
class GLOBALS:
foos=None
class Foo:
def __init__(self):
pass
class Foos:
Foos: List[Foo]=[]
# SOME GLOBALS ARE USED HERE in a real script
def __init__(self):
pass
G
rote:
Do you want the following?
```
from typing import List, Optional
class GLOBALS:
foos: Optional[Foos] = None
class Foo:
def __init__(self):
pass
class Foos:
Foos: List[Foo] = []
def __init__(self):
pass
GLOBALS.foos = Foos()
```
Kind regards,
Sam
Às 02:32 de 30/10/22, dn escreveu:
On 30/10/2022 11.59, Paulo da Silva wrote:
Solution (below) will not work if the mention of Foos in GLOBALS is a
forward-reference. Either move GLOBALS to suit, or surround "Foos"
with quotes.
This is the problem for me. So far, without typing, I us
Às 01:14 de 30/10/22, Thomas Passin escreveu:
On 10/29/2022 1:45 PM, Paulo da Silva wrote:
Hi!
Consider this simple script ...
___
from typing import List, Optional
class GLOBALS:
foos=None
class Foo:
def __init__(self):
pass
class Foos:
Foos: List
Às 10:26 de 30/10/22, Peter J. Holzer escreveu:
On 2022-10-29 23:59:44 +0100, Paulo da Silva wrote:
Às 22:34 de 29/10/22, dn escreveu:
Solution (below) will not work if the mention of Foos in GLOBALS is a
forward-reference.
Either move GLOBALS to suit, or surround "Foos" w
Às 22:34 de 29/10/22, dn escreveu:
Out of interest, tested snippet in PyCharm, cf native-mypy. It flags the
original:
GLOBALS.foos: Optional[Foos]=Foos()
but not the fall-back:
GLOBALS.foos=Foos()
Must admit, the first query coming to mind was: why is the typing taking
place at i
Às 17:06 de 30/10/22, Stefan Ram escreveu:
Paulo da Silva writes:
Is there anything to do without loosing my script structure and usual
practice?
to lose (losing): to stop having something
to loose (loosing): to let or make loose (see next line)
loose (adj.): not firmly attached
Às 21:08 de 31/10/22, Peter J. Holzer escreveu:
On 2022-10-30 11:26:56 +0100, Peter J. Holzer wrote:
On 2022-10-29 23:59:44 +0100, Paulo da Silva wrote:
The funny thing is that if I replace foos by Foos it works because it gets
known by the initial initialization
Hi!
And a typing problem again!!!
___
class C:
def __init__(self):
self.__foos=5*[0]
@property
def foos(self) -> list[int]:
return self.__foos
@foos.setter
def foos(self,v: int):
Às 03:24 de 03/11/22, Paulo da Silva escreveu:
Hi!
And a typing problem again!!!
___
class C:
def __init__(self):
self.__foos=5*[0]
@property
def foos(self) -> list[int]:
return self.__foos
@foos.setter
def f
Às 05:32 de 03/11/22, Paulo da Silva escreveu:
Às 03:24 de 03/11/22, Paulo da Silva escreveu:
Hi!
And a typing problem again!!!
___
class C:
def __init__(self):
self.__foos=5*[0]
@property
def foos(self) -> list[int]:
ret
Às 18:16 de 03/11/22, Chris Angelico escreveu:
On Fri, 4 Nov 2022 at 05:03, Paulo da Silva
wrote:
Changing def foos(self) -> list[int]: to
def foos(self) -> Union[list[int]]:
fixes the problem.
Not so elegant, however!
Wait, what?!
Union[X, Y] means "X or Y"
Union[X] mea
Às 07:55 de 03/11/22, dn escreveu:
On 03/11/2022 16.24, Paulo da Silva wrote:
class C:
def __init__(self):
self.__foos=5*[0]
@property
def foos(self) -> list[int]:
return self.__foos
@foos.setter
def foos(self,v: int):
self.__foos=[v for
Às 07:52 de 04/11/22, dn escreveu:
On 04/11/2022 07.50, Chris Angelico wrote:
On Fri, 4 Nov 2022 at 05:48, Paulo da Silva
wrote:
Às 05:32 de 03/11/22, Paulo da Silva escreveu:
Às 03:24 de 03/11/22, Paulo da Silva escreveu:
Hi!
And a typing problem again
Hi!
I need to debug a python3 script under root. I tried spyder but it does
not work.
Running as root without --no-sandbox is not supported. See
https://crbug.com/638180.
Thanks for any comments including alternative solutions to debug as root.
Paulo
--
https://mail.python.org/mailman/listinfo
Às 22:56 de 08/10/21, Paulo da Silva escreveu:
> Hi!
>
> I need to debug a python3 script under root. I tried spyder but it does
> not work.
>
> Running as root without --no-sandbox is not supported. See
> https://crbug.com/638180.
>
> Thanks for any comments includi
Hello!
Is there a better way of doing this?
Why didn't setattr (as commented) work?
Thanks for an help/comments.
class C:
def f(self,v):
#setattr(self,n,v)
self.__dict__['n']=v
c=C()
c.f(3)
print(c.n)
--
https://mail.python.org/mailman/listinfo/python-list
Às 23:28 de 10/10/21, Stefan Ram escreveu:
> Paulo da Silva writes:
>> class C:
>>def f(self,v):
>>#setattr(self,n,v)
>>self.__dict__['n']=v
>
>> Why didn't setattr (as commented) work?
>
> Because the name n has not
Às 22:54 de 11/10/21, Chris Angelico escreveu:
> On Tue, Oct 12, 2021 at 8:52 AM Paulo da Silva
> wrote:
>>
>> Hi!
>>
>> I need to debug a python3 script under root. I tried spyder but it does
>> not work.
>>
>> Running as root without --no-sa
Às 02:08 de 12/10/21, Michael Torrie escreveu:
> On 10/8/21 4:32 PM, Paulo da Silva wrote:
>> Às 22:56 de 08/10/21, Paulo da Silva escreveu:
>>> Hi!
>>>
>>> I need to debug a python3 script under root. I tried spyder but it does
>>> not work.
>&g
Às 16:16 de 14/10/21, Mats Wichmann escreveu:
> On 10/13/21 16:55, Michael Torrie wrote:
>> On 10/13/21 12:09 PM, Paulo da Silva wrote:
>>> spyder and eric are both python editors/debuggers! Why are they related
>>> with web browsers?!
>>
>> Good point. I w
Às 23:55 de 13/10/21, Michael Torrie escreveu:
> On 10/13/21 12:09 PM, Paulo da Silva wrote:
>> spyder and eric are both python editors/debuggers! Why are they related
>> with web browsers?!
>
> Good point. I was going off of the chromium bug report. My bad. I
> mis
Hi!
Why doesn't this work
if (self.ctr:=self.ctr-1)<=0:
while this works
if (ctr:=ctr-1)<=0:
Thanks
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https://mail.python.org/mailman/listinfo/python-list
Às 20:34 de 22/10/21, Chris Angelico escreveu:
> On Sat, Oct 23, 2021 at 6:24 AM Jon Ribbens via Python-list
> wrote:
>>
>> On 2021-10-22, Stefan Ram wrote:
>>> Paulo da Silva writes:
>>>> Why doesn't this work
>>>> if (self.ctr:=self
Hi!
How do I handle a SIGINT (or any other signal) avoid nesting?
Does this work?
class STATUS:
InInt=False
def SIGINT_handler(sn,f):
if STATUS.InInt: return
STATUS.InInt=True
process_int()
STATUS.InInt=False
Thanks for any suggestions.
Paulo
--
https:/
Às 21:55 de 10/11/21, Jon Ribbens escreveu:
> On 2021-11-10, Paulo da Silva wrote:
>> Hi!
>>
>> How do I handle a SIGINT (or any other signal) avoid nesting?
>
> I don't think you need to. Python will only call signal handlers in
> the main thread, so a hand
Às 06:22 de 11/11/21, Chris Angelico escreveu:
> On Thu, Nov 11, 2021 at 5:01 PM Jon Ribbens via Python-list
> wrote:
>>
>> On 2021-11-10, Paulo da Silva wrote:
>>> Hi!
>>>
>>> How do I handle a SIGINT (or any other signal) avoid nesting?
>>
Hello!
Let's say I have a dir src containing another dir named foo and a script
test.py.
So, I have
src/foo (dir)
src/test.py (script)
test.py has the folloing code:
import foo as f
c=f.C()
I am inside src and want to run python test.py.
How can I create the class C inside src/foo dir if i
Às 02:01 de 05/02/22, Cameron Simpson escreveu:
On 05Feb2022 00:37, Paulo da Silva wrote:
Let's say I have a dir src containing another dir named foo and a
script test.py.
So, I have
src/foo (dir)
src/test.py (script)
test.py has the folloing code:
import foo as f
c=f.C()
I am insid
Hi!
Let's say I have two lists of equal length but with a variable number of
elements. For ex.:
l1=['a','b','c']
l2=['j','k','l']
I want to build a string like this
"foo a j, b k, c l bar"
Is it possible to achieve this with f strings or any other
simple/efficient way?
Thanks for any help
Às 02:17 de 09/02/22, Paulo da Silva escreveu:
Hi!
Let's say I have two lists of equal length but with a variable number of
elements. For ex.:
l1=['a','b','c']
l2=['j','k','l']
I want to build a string like this
"foo a
Hi all.
I am learning pandas DataFrame and I want to add (eventually replace by
index) some rows.
For adding here is what I tried:
>df = pd.DataFrame(np.random.randn(6,4), index=dates, columns=list('ABCD'))
>df
A B C D
2013-01-01 -0.111621 1.126761 -2.4
Às 21:10 de 13-04-2016, Paulo da Silva escreveu:
> Hi all.
...
> [6 rows x 4 columns]
>
>> dft=pd.DataFrame([[1,2,3,4]],
> index=[datetime.date(2016,1,12)],columns=df.columns)
>
>> dft
> A B C D
> 2016-01-12 1 2 3 4
>
> [1 rows x 4 colu
Hi all.
I have seen this "trick" to create a hot vector.
In [45]: x
Out[45]: array([0, 1])
In [46]: y
Out[46]: array([1, 1, 1, 0, 0, 1, 0, 0], dtype=uint8)
In [47]: y[:,None]
Out[47]:
array([[1],
[1],
[1],
[0],
[0],
[1],
[0],
[0]], dtype=uint8)
Às 05:05 de 18-04-2016, Reto Brunner escreveu:
> Hi,
> It is called broadcasting an array, have a look here:
> http://docs.scipy.org/doc/numpy-1.10.1/user/basics.broadcasting.html
>
So, there are two broadcasts here.
OK.
Thanks.
--
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Hi.
Why in this code fragment self.__name is not kept between pickle
dumps/loads? How to fix it?
Thanks.
import pickle
import pandas as pd
import numpy as np
class C(pd.DataFrame):
def __init__(self,name,*a,**b):
super(C,self).__init__(*a,**b)
self.__name
Às 22:43 de 21-04-2016, Paulo da Silva escreveu:
> Hi.
>
> Why in this code fragment self.__name is not kept between pickle
> dumps/loads? How to fix it?
>
> Thanks.
>
> import pickle
> import pandas as pd
> import numpy as np
>
> class C(pd.DataFrame):
&
Às 17:27 de 22-04-2016, Ian Kelly escreveu:
> On Thu, Apr 21, 2016 at 7:52 PM, Paulo da Silva
> wrote:
>> Às 22:43 de 21-04-2016, Paulo da Silva escreveu:
...
>
> Probably this is necessary because the DataFrame class is already
> customizing its pickle behavior without ta
Às 21:33 de 22-04-2016, Ian Kelly escreveu:
> On Fri, Apr 22, 2016 at 2:21 PM, Paulo da Silva
> wrote:
...
>
> If they start with two underscores then you could use the name
> mangling to find them. If the class name is MyClass then look for any
> keys in the instance di
Hi!
Suppose I have a class A whose implementation I don't know about.
That class A has a method f that returns a A object.
class A:
...
def f(self, <...>):
...
Now I want to write B derived from A with method f1. I want f1 to return
a B object:
class B(A):
Às 05:20 de 09-05-2016, Paulo da Silva escreveu:
Thank you Yann and Peter.
I really didn't know anything about those "things".
So far I have worked a lot with classes but they are written by me.
Now I needed to derive pandas.Series (for example) and it has some
methods that retur
Hi all!
What's wrong with this?
import pandas as pd
x=pd.to_datetime("20160501")
x+pd.DateOffset(days=1)
Timestamp('2016-05-02 00:00:00', tz=None)
x.__add__(pd.DateOffset(days=1))
NotImplemented
More generally I have a class derived from pandas.datetime and I want to
implement its own __add__
Às 04:08 de 08-06-2016, MRAB escreveu:
> On 2016-06-08 03:09, Paulo da Silva wrote:
>> Hi all!
>>
...
>>
>> More generally I have a class derived from pandas.datetime and I want to
>> implement its own __add__ that at a given point call super __add__.
Hi!
I have an environment created with conda (anaconda3).
There is a package that is unavailable in conda.
Installing it with pip3, with conda env activated, the installation goes
to .local/bin and .local/lib in my home dir (BTW I'm running linux
kubuntu 18.04).
This also has a bad side effect! It
Hi!
Does anybody know why this code does not expand the text widget when I
increase the window size (with mouse)? I want height and width but as
minimum (or may be initial) size.
import tkinter as tk
class App:
def __init__(self,master):
self.tboard=tk.Text(master,height=
Às 08:24 de 06/12/18, Peter Otten escreveu:
> Paulo da Silva wrote:
>
...
>
> You have to set the column/row weight of the /master/:
>
> master.grid_columnconfigure(1, weight=1)
> master.grid_rowconfigure(1, weight=1)
Ok. That works!
>
> Als
Às 21:15 de 06/12/18, Rick Johnson escreveu:
> Paulo da Silva wrote:
>
...
>
> In Tkinter, if you have a "container"[1] that only has a
> single widget stuffed inside, and, you want that single
> widget to expand to fill the extents of its parent
> container, the
Às 07:11 de 07/12/18, Christian Gollwitzer escreveu:
> Am 07.12.18 um 03:00 schrieb Paulo da Silva:
>> Às 21:15 de 06/12/18, Rick Johnson escreveu:
...
> So instead of complaining about lacking support in Tk, the
> Python community should do their homework and provide wrapper
Às 01:17 de 08/12/18, jf...@ms4.hinet.net escreveu:
00
> 0
03
> File "", line 1
> 03
> ^
> SyntaxError: invalid token
>
> Any particular reason?
>
Not sure but I think that after 0 it expects x for hexadecimal, o for
octal, b for binary, ... may be others.
0xa
10
0o10
Hi!
Sorry if this is OT.
I decided to give cython a try and cannot run a very simple program!
1. I am using kubuntu 18.04 and installe cython3 (not cython).
2. My program tp.pyx:
# cython: language_level=3
print("Test",2)
3. setup.py
from distutils.core import setup
from Cython.Build import cy
Às 19:48 de 22/12/18, MRAB escreveu:
> On 2018-12-22 18:26, Paulo da Silva wrote:
...
> Well, I've just tried this on Raspbian with the same files (for Python 3):
>
> python3 -m pip install cython
> python3 setup.py build_ext --inplace
> python3 -c 'import tp'
Às 14:07 de 24/12/18, Stefan Behnel escreveu:
> Paulo da Silva schrieb am 22.12.18 um 19:26:
...
>
> Ubuntu 18.04 ships Cython 0.26, which has a funny bug that you hit above.
> It switches the language-level too late, so that the first token (or word)
> in the file is parsed with
Às 19:54 de 09/12/18, Tim Williams escreveu:
> On Saturday, December 8, 2018 at 10:13:14 PM UTC-5, Monte Milanuk wrote:
>> Did you find any solution(s)?
>
> I usually just lurk and read on this list. I don't reply since there's
> usually more competent people that regularly post helpful answers.
Às 19:39 de 02/01/19, Hartmut Goebel escreveu:
> Am 03.12.18 um 18:39 schrieb Paulo da Silva:
>> This also has a bad side effect! It reinstalls there some depedencies
>> already installed in the conda created environment!
>>
>> Is there a way to avoid this situation
Às 17:39 de 03/12/18, Paulo da Silva escreveu:
Well ... further clarification ...
> Hi!
>
> I have an environment created with conda (anaconda3).
> There is a package that is unavailable in conda.
The package is sklearn (import sklearn). - Look below before comment pls.
> Ins
Hi!
I don't know if this is the right group to ask ... sorry if it isn't.
Is there a way to get the file extensions of a file in linux, the same
way as "filefrag -e " does?
The purpose is to see if two files are the same file, namely those
copied with the --reflink option in btrfs.
A solution f
Às 23:09 de 27/03/19, Cameron Simpson escreveu:
> On 27Mar2019 21:49, Paulo da Silva wrote:
...
> The filefrag manual entry says it works by calling one of 2 ioctls. You
> can do that from Python with the ioctl() function in the standard fcntl
> module. I haven't tried to do this
Às 22:18 de 28/03/19, Cameron Simpson escreveu:
> On 28Mar2019 01:12, Paulo da Silva wrote:
>> Às 23:09 de 27/03/19, Cameron Simpson escreveu:
...
>
> Oh, just tangential to this.
>
> If you were doing this ad hoc, yes calling the filefrag executable is
> very expensiv
Às 01:35 de 06/04/19, Pablo Lucena escreveu:
> Have you looked into eBPF?
I'll take a look at that. Thanks Pablo.
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Hi all.
I am looking for improved solutions to these two problems.
They are to be in a program that deals with big data. So, they need to
be fast and save memory.
Problem 1.
I have a list of objects and want to split it in a list of groups.
Each group must have all "equal objects" and have more
Às 19:42 de 21/04/19, Stefan Ram escreveu:
> Paulo da Silva writes:
>> I have a list of objects and want to split it in a list of groups.
>> "equal objects" is based on an id we can get from the object.
>
> main.py
>
> input = [ 'abc', '
Às 20:10 de 21/04/19, MRAB escreveu:
> On 2019-04-21 19:23, Paulo da Silva wrote:
>> Hi all.
>>
...
> Have you compared the speed with an implementation that uses
> defaultdict? Your code always creates an empty list for each item, even
> though it might not be needed.
Às 20:41 de 21/04/19, DL Neil escreveu:
> Olá Paulo,
>
...
>
> Given that we're talking "big data", which Python Data Science tools are
> you employing? eg NumPy.
Sorry. I misused the term "big data". I should have said a big amount of
data. It is all about objects built of text and some number
Às 22:21 de 21/04/19, Paul Rubin escreveu:
> Paulo da Silva writes:
>> splitter={}
>> for f in Objs:
>> splitter.setdefault(f.getId1,[]).append(f)
>> groups=[gs for gs in splitter.values() if len(gs)>1]
>
> It's easiest if you can sort the input l
Hi!
How do I create a pandas dataframe with two (or more) groups of cols.?
Ex.:
G1 G2
C1 C2 C3 C1 C2 C3
Rows of values ...
I then should be able to access for example
df['G2']['C3'][]
Thanks.
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Às 04:56 de 14/06/19, Paulo da Silva escreveu:
> Hi!
>
> How do I create a pandas dataframe with two (or more) groups of cols.?
>
> Ex.:
>
> G1 G2
> C1 C2 C3 C1 C2 C3
> Rows of values ...
>
> I then should be able to access for example
> df['G2&#x
Às 18:31 de 14/06/19, Paulo da Silva escreveu:
> Às 04:56 de 14/06/19, Paulo da Silva escreveu:
...
>
> After digging a lot :-) , and for those who may be interested, I found
> one way:
>
> In [21]: d1 = pd.DataFrame(np.array([[1, 2, 3], [4, 5, 6], [7, 8,
> 9]]),col
Hi all!
Is there any difference between using the base class name or super to
call __init__ from base class?
class C1:
def __init__(self):
...
class C2(C1):
def __init__(self):
C1.__init__(self) or super().__init__() ??
...
I have
Às 15:30 de 12/07/19, Thomas Jollans escreveu:
> On 12/07/2019 16.12, Paulo da Silva wrote:
>> Hi all!
>>
>> Is there any difference between using the base class name or super to
>> call __init__ from base class?
>
> There is, when multiple inheritance is invol
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