大约有 46,000 项符合查询结果（耗时：0.0301秒） [XML]
correct way to define class variables in Python [duplicate]
I noticed that in Python, people initialize their class attributes in two different ways.
2 Answers
...
Get absolute path of initially run script
...ining info to get the absolute path. But they seem to work under some conditions and not under others. Is there one silver bullet way to get the absolute path of the executed script in PHP? For me, the script will run from the command line, but, a solution should function just as well if run with...
Inherit docstrings in Python class inheritance
I'm trying to do some class inheritance in Python. I'd like each class and inherited class to have good docstrings. So I think for the inherited class, I'd like it to:
...
Best way to structure a tkinter application? [closed]
...vocate an object oriented approach. This is the template that I start out with:
# Use Tkinter for python 2, tkinter for python 3
import tkinter as tk
class MainApplication(tk.Frame):
def __init__(self, parent, *args, **kwargs):
tk.Frame.__init__(self, parent, *args, **kwargs)
s...
Object of custom type as dictionary key
...d to add 2 methods, note __hash__ and __eq__:
class MyThing:
def __init__(self,name,location,length):
self.name = name
self.location = location
self.length = length
def __hash__(self):
return hash((self.name, self.location))
def __eq__(self, other):
...
Or versus OrElse
...
OrElse is a short-circuiting operator, Or is not.
By the definition of the boolean 'or' operator, if the first term is True then the whole is definitely true - so we don't need to evaluate the second term.
OrElse knows this, so doesn't try and ev...
Django “xxxxxx Object” display customization in admin action sidebar
...follow
|
edited May 17 '16 at 7:06
answered Feb 17 '12 at 22:54
...
Bidirectional 1 to 1 Dictionary in C#
...h value and key (up to RefEquals anyway), and which can be searched using either key or value. Anyone know of one, or should I just implement it myself? I can't believe that I'm the first person to need this...
...
Accessing class variables from a list comprehension in the class definition
How do you access other class variables from a list comprehension within the class definition? The following works in Python 2 but fails in Python 3:
...
Finding the source code for built-in Python functions?
...follow
|
edited Nov 19 '17 at 4:11
Rob Rose
8801313 silver badges3333 bronze badges
answe...