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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 available singleto...
Google Play on Android 4.0 emulator
How can I install the Google Play .apk onto my Android 4.0 emulator?
8 Answers
8
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How do MySQL indexes work?
...at's where the name came from):
Let's say you have a book about databases and you want to find some information about, say, storage. Without an index (assuming no other aid, such as a table of contents) you'd have to go through the pages one by one, until you found the topic (that's a full table s...
Clean up a fork and restart it from the upstream
I have forked a repository, then I made some changes and it looks like I've messed up everything.
4 Answers
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What is the difference between 'content' and 'text'
... to do something without explaining the why . For instance, both r.text and r.content are shown as examples of how to get the server response. But where is it explained what these properties do? For instance, when would I choose one over the other? I see thar r.text returns a unicode obje...
How do I fix “Failed to sync vcpu reg” error?
...HAX x86 emulator for Windows (8, if that matters). I installed everything and created an AVD for the android version, and everything appears correct, but when I run it, I get this output:
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html (+css): denoting a preferred place for a line break
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By using
span.avoidwrap { display:inline-block; }
and wrapping the text I want to be kept together in
<span class="avoidwrap"> Text </span>
it will wrap first in preferred blocks and then in smaller fragments as needed.
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How can I compare two lists in python and return matches
I want to take two lists and find the values that appear in both.
19 Answers
19
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Remove duplicate lines without sorting [duplicate]
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The UNIX Bash Scripting blog suggests:
awk '!x[$0]++'
This command is telling awk which lines to print. The variable $0 holds the entire contents of a line and square brackets are array access. So, for each line of the file, the node of the array x is incremented and the line printed if ...
ListView inside ScrollView is not scrolling on Android
... ScrollView . I have an Activity which has some EditTexts in the top part and then a tab host with two tabs which have one ListView each. When the EditText views are focused, the soft keyboard comes up and as I have a ScrollView, the content is scrollable. But the problem comes when there are more...