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Python: How to get stdout after running os.system? [duplicate]
...t
Or as a function (using shell=True was required for me on Python 2.6.7 and check_output was not added until 2.7, making it unusable here):
def system_call(command):
p = subprocess.Popen([command], stdout=subprocess.PIPE, shell=True)
return p.stdout.read()
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Semi-transparent color layer over background-image?
I have a DIV and I would like to put a pattern as background. This pattern is gray. So to make it a little more nice, I would like to put a light transparent color "layer" over. Below is what I tried but which did not work. Is there a way to put the colored layer over the background image?
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Do I use , , or for SVG files?
...ve svg, use <img> with script fallbacks
to png version (for older IE and android < 3). One clean and simple
way to do that:
<img src="your.svg" onerror="this.src='your.png'">.
This will behave much like a GIF image, and if your browser supports declarative animations (SMIL) then th...
What is the default location for MSBuild logs?
... location of the log file? I have searched in the folder where my solution and projects are stored, but cannot find any .log file.
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Which data type for latitude and longitude?
I am newbie to PostgreSQL and PostGIS. I want to store latitude and longitude values in PostgreSQL 9.1.1 database table. I will calculate distance between two points, find nearer points by using this location values.
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How can I see what has changed in a file before committing to git?
...ere are three useful ways to use git diff:
Show differences between index and working tree; that is, changes you haven't staged to commit:
git diff [filename]
Show differences between current commit and index; that is, what you're about to commit (--staged does exactly the same thing, use what y...
What is the difference between mutex and critical section?
... between the two of them. On my system for 1,000,000 uncontended acquires and releases, a mutex takes over one second. A critical section takes ~50 ms for 1,000,000 acquires.
Here's the test code, I ran this and got similar results if mutex is first or second, so we aren't seeing any other effect...
Is main() really start of a C++ program?
The section $3.6.1/1 from the C++ Standard reads,
11 Answers
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What's the simplest way to print a Java array?
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Since Java 5 you can import java.util.Arrays; and then use Arrays.toString(arr) or Arrays.deepToString(arr) for arrays within arrays. Note that the Object[] version calls .toString() on each object in the array. The output is even decorated in the exact way you're asking...
Programmatically relaunch/recreate an activity?
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UPDATE: Android SDK 11 added a recreate() method to activities.
I've done that by simply reusing the intent that started the activity. Define an intent starterIntent in your class and assign it in onCreate() using starterIntent = ...