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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...
Extracting text OpenCV
...
Hi, how do i achieve the same outcome with python cv2?
– dnth
Oct 28 '15 at 9:19
3
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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...
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...
C++ Modules - why were they removed from C++0x? Will they be back later on?
...on about his implementation:
http://llvm.org/devmtg/2012-11/Gregor-Modules.pdf?=submit
EDIT 2:
The module support in clang have been documented here:
http://clang.llvm.org/docs/Modules.html
EDIT 3:
Modules are now supported in Microsoft's C++ compiler as well:
http://blogs.msdn.com/b/vcblog/arc...
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...
What are the differences between django-tastypie and djangorestframework? [closed]
...rms, validators etc. (Well, idiomatic django is no where near to idiomatic python. If you are python expert but have no experience with Django then you might be having hard time initially fit into idiomatic django philosophy and for that matter DRF as well).
DRF comes with lots of inbuilt magic meth...
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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