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How to override the copy/deepcopy operations for a Python object?
...lex Martelli's answer and Rob Young's comment you get the following code:
from copy import copy, deepcopy
class A(object):
def __init__(self):
print 'init'
self.v = 10
self.z = [2,3,4]
def __copy__(self):
cls = self.__class__
result = cls.__new__(cl...
Do Facebook Oauth 2.0 Access Tokens Expire?
...upgradation the offline_acees functionality will be deprecated for forever from the 3rd October, 2012.
and the user will be given 60 days long-lived access token and before expiration of the access token Facebook will notify or you can get your custom notification functionality fetching the exp...
MQTT报文多个数据的提取 - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
...t;GQ-YIWANG-HUI-WD",
"value": 35.02,
"type": 16,
"quality": 1,
"timestamp": 1772423665
},
{
&nbs...
Interfaces — What's the point?
The reason for interfaces truly eludes me. From what I understand, it is kind of a work around for the non-existent multi-inheritance which doesn't exist in C# (or so I was told).
...
Add legend to ggplot2 line plot
...I would plot your data:
##Subset the necessary columns
dd_sub = datos[,c(20, 2,3,5)]
##Then rearrange your data frame
library(reshape2)
dd = melt(dd_sub, id=c("fecha"))
All that's left is a simple ggplot command:
ggplot(dd) + geom_line(aes(x=fecha, y=value, colour=variable)) +
scale_colour_man...
How to count string occurrence in string?
...
1084
The g in the regular expression (short for global) says to search the whole string rather than...
git: 'credential-cache' is not a git command
...
From a blog I found:
"This [git-credential-cache] doesn’t work for Windows systems as git-credential-cache communicates through a Unix socket."
Git for Windows
Since msysgit has been superseded by Git for Windows, using ...
Why does Ruby 1.9.2 remove “.” from LOAD_PATH, and what's the alternative?
... @Joshua Cheek: Also, as a sort-of counterbalance to removing . from $LOAD_PATH, Ruby 1.9.2 introduces require_relative which ... surprise ... require s a file relative to the location of the currently executing file (i.e. relative to File.dirname(__FILE__) ).
– Jör...
MaterialDialog 对话框增强扩展 · App Inventor 2 中文网
...传入。
ShortLength 短时长
Toast 短时长的常量值，值为 0。在调用 ShowToast 时作为时长参数传入。
WrapContent 自动换行
控制 Toast 内容是否自动换行。设置为 true 则自动换行，设置为 false 则不换行。在调用 ShowToast 之前设置，以...
Twitter bootstrap dropdown goes outside the screen
...ul.dropdown-menu should do it
Deprecation Notice: As of Bootstrap v3.1.0, .pull-right on dropdown menus is deprecated. To right-align a menu, use .dropdown-menu-right.
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