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live output from subprocess command
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Executive Summary (or "tl;dr" version): it's easy when there's at most one subprocess.PIPE, otherwise it's hard.
It may be time to explain a bit about how subprocess.Popen does its thing.
(Caveat: this is for Python 2.x, although 3.x is similar; and I'm quite fuzzy on the Windows variant. ...
What does the NS prefix mean?
...don't mind if the accepted answer changes to one of the others (if that's possible - never checked that).
– Olaf Kock
Aug 8 '12 at 20:21
2
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Best way to make Django's login_required the default
...ication, this model will work. If this isn't a one-to-one fit, you may choose to modify the middleware to suit your circumstances more closely.
What I like about this approach - besides removing the necessity of littering the codebase with @login_required decorators - is that if the authentication...
What is that “total” in the very first line after ls -l? [closed]
... is freely modifiable with the
--block-size=<int> flag on ls, the POSIXLY_CORRECT=1 GNU
environment variable (to get 512-byte units), or the -k flag to force
1kB units.
physical_block_size is the OS dependent value of an internal block interface, which may or may not be connected to t...
List files with certain extensions with ls and grep
...itch to prevent that directories are recursed.
– Carlos Eugenio Thompson Pinzón
Oct 5 '13 at 16:50
11
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Bash Script : what does #!/bin/bash mean? [duplicate]
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When bash is run as sh, it behaves differently (more POSIX-like) than when it is run as bash. Read the manual; it does cover that detail.
– Jonathan Leffler
Dec 14 '12 at 3:14
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How to use Git for Unity3D source control?
...up to date version checkout Github maintained Unity.gitignore file without OS specifics.
# =============== #
# Unity generated #
# =============== #
Temp/
Library/
# ===================================== #
# Visual Studio / MonoDevelop generated #
# ===================================== #
Exported...
Replace comma with newline in sed on MacOS?
...s/,/\\\n/g'
Note this will not work on all shells, but will work on the most common ones.
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std::string to float or double
...to convert a string to a double.
You can do it with the stringstream or boost::lexical_cast but those come with a performance penalty.
Ahaha you have a Qt project ...
QString winOpacity("0.6");
double temp = winOpacity.toDouble();
Extra note:
If the input data is a const char*, QByteArray::to...
Printing 1 to 1000 without loop or conditionals
...
Compile time recursion! :P
#include <iostream>
template<int N>
struct NumberGeneration{
static void out(std::ostream& os)
{
NumberGeneration<N-1>::out(os);
os << N << std::endl;
}
};
template<>
struct NumberGener...