by: anabell |
last post by:
I have a code like this:
sqlString = 'INSERT INTO ' + self.TableName + ' VALUES (' + self.TableFields + ')'
self.cursor.execute(sqlString, self.__dict__)
This works correctly. However, I'm...
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by: flori |
last post by:
i try to greate somthing like this
class ca(object): __slots__ = ("a",)
class cb(ca): __slots__ = ("a","b")
class cc(ca): __slots__ = ("a","c")
class cd(cb,cc): __slots__ = ("a","b","c","d")
...
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by: Jean Brouwers |
last post by:
Classes using __slots__ seem to be quite a bit smaller and faster
to instantiate than regular Python classes using __dict__.
Below are the results for the __slots__ and __dict__ version of a...
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by: Nick Jacobson |
last post by:
The __slots__ attribute of new-style classes can reduce memory usage
when there are millions of instantiations of a class.
So would a __slots__ attribute for functions/methods have a similar...
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by: Porky Pig Jr |
last post by:
Hello, I"m still learning Python, but going through the Ch 5 OOP of
Nutshell book. There is discussion on __slots__, and my understanding
from reading this section is that if I have a class...
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by: Ewald R. de Wit |
last post by:
I'm running into a something unexpected for a new-style class
that has both a class attribute and __slots__ defined. If the
name of the class attribute also exists in __slots__, Python
throws an...
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by: Schüle Daniel |
last post by:
Hello,
consider this code
>>> class A(object):
.... def __init__(self):
.... self.a = 1
.... self.b = 2
....
>>> class B(A):
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by: pascal.parent |
last post by:
Hi,
I try to define a (new-style) class who:
- have a __slots__ defined to be strict attributes,
- return None if the attribute is 'ok' but not set, or raise a 'normal'
error if the attribute...
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by: Licheng Fang |
last post by:
Python is supposed to be readable, but after programming in Python for
a while I find my Python programs can be more obfuscated than their C/C
++ counterparts sometimes. Part of the reason is that...
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by: Chris |
last post by:
Hi,
I'd like to be able to access an attribute of a particular Python
object as fast as possible from some C code.
I wondered if using __slots__ to store the attribute would allow me to
do...
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by: Charles Arthur |
last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
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by: ryjfgjl |
last post by:
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
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by: BarryA |
last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
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by: nemocccc |
last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
|
by: Hystou |
last post by:
There are some requirements for setting up RAID:
1. The motherboard and BIOS support RAID configuration.
2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers,...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows...
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