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Make sure only a single instance of a program is running
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The following code should do the job, it is cross-platform and runs on Python 2.4-3.2. I tested it on Windows, OS X and Linux.
from tendo import singleton
me = singleton.SingleInstance() # will sys.exit(-1) if other instance is running
The latest code version is avail...
Private pages for a private Github repo
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I had raised a support ticket against Github and got a response confirming the fact that ALL pages are public. I've now requested them to add a note to help.github.com/pages.
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impr...
How do you print in a Go test using the “testing” package?
... brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 4...
Prevent browser from loading a drag-and-dropped file
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I confirm that both dragover and drop handlers are needed to prevent the browser from loading the dropped file. (Chrome latest 2015/08/03). The solution works on FF latest, too.
– Offirmo
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Automatically remove Subversion unversioned files
...ve-unversioned
Before that, I use this python script to do that:
import os
import re
def removeall(path):
if not os.path.isdir(path):
os.remove(path)
return
files=os.listdir(path)
for x in files:
fullpath=os.path.join(path, x)
if os.path.isfile(fullpat...
How do I detect if software keyboard is visible on Android Device or not?
...id:layout_height="match_parent"
android:id="@+id/addresses_confirm_root_view"
android:background="@color/WHITE_CLR">
2. Initialize your root view in your Activity:
RelativeLayout rootView = (RelativeLayout) findViewById(R.id.addresses_confirm_root_view);
3. Det...
How to disable back swipe gesture in UINavigationController on iOS 7
... try to use it in any other methods while working on the viewController, I confirm it works for me on iOS8 when I click on some button inside of the view.
– Sihad Begovic
Dec 29 '14 at 8:29
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Installing PG gem on OS X - failure to build native extension
...any others have had problems installing the pg gem. None of the solutions posed for others have worked for me.
15 Answers
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Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
...he tendency to generate noticeably faster code if I optimize for size ( -Os ) instead of speed ( -O2 or -O3 ), and I have been wondering ever since why.
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How do I check OS with a preprocessor directive?
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The Predefined Macros for OS site has a very complete list of checks. Here are a few of them, with links to where they're found:
Windows
_WIN32 Both 32 bit and 64 bit
_WIN64 64 bit only
Unix (Linux, *BSD, Mac OS X)
See this relate...