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Why doesn't Objective-C support private methods?
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More python being "obj-c-ic" :). Guido was quite proactive in maintaining Python on NeXT systems, including creating the 1st version of PyObjC. Thus, ObjC did influence python somewhat.
– bbum
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App Inventor 2 UDP网络通信教程 - 发送和接收UDP数据包 · App Inventor 2 中文网
...计思路
组件设计
积木块实现
电脑端服务（Python 示例）
实战案例二：UDP 传输图片思路
场景描述
技术挑战
解决方案：分包传输 + 序号重组
数据包格式设计
发送端积木块（伪代码...
What is the 'dynamic' type in C# 4.0 used for?
...is being able to reuse variables for different types of data. I'm sure the Python, Ruby, and Perl programmers out there can think of a million ways to take advantage of this, but I've been using C# so long that it just feels "wrong" to me.
dynamic foo = 123;
foo = "bar";
OK, so you most likely wi...
Regex: match everything but specific pattern
...ny languages, use \A to define the unambiguous start of string, and \z (in Python, it is \Z, in JavaScript, $ is OK) to define the very end of the string.
Dot note: In many flavors (but not POSIX, TRE, TCL), . matches any char but a newline char. Make sure you use a corresponding DOTALL modifier (/s...
Extracting text OpenCV
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Hi, how do i achieve the same outcome with python cv2?
– dnth
Oct 28 '15 at 9:19
3
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How to make a cross-module variable?
... these answers. Also note that __builtin__ has been renamed to builtins in python3.
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Generate a random date between two other dates
...e timestamp back to date string and you have a random time in that range.
Python example (output is almost in the format you specified, other than 0 padding - blame the American time format conventions):
import random
import time
def str_time_prop(start, end, format, prop):
"""Get a time at a...
Where is PATH_MAX defined in Linux?
... PATH_MAX MAXPATHLEN
./X11/extensions/XKBsrv.h:#define PATH_MAX 1024
./python2.7/osdefs.h:#ifndef PATH_MAX
./python2.7/osdefs.h:#define PATH_MAX MAXPATHLEN
./python2.7/osdefs.h:#if defined(PATH_MAX) && PATH_MAX > 1024
./python2.7/osdefs.h:#define MAXPATHLEN PATH_MAX
./linux/limits.h:#...
Good tutorials on XMPP? [closed]
...asy to learn.
If you are not into java: The book referes to the SkeekXMPP Python library and it uses it to create some examples (echo bot, ...).
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Syntax behind sorted(key=lambda: …)
...s callable). In the case of sorted the callable only takes one parameters. Python's lambda is pretty simple. It can only do and return one thing really.
The syntax of lambda is the word lambda followed by the list of parameter names then a single block of code. The parameter list and code block are...