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Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

... In that case, you should probably check if your MYSQL server is actually running. – Jan Thomä Jan 25 '14 at 8:48 3 ...
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How to preview git-pull without doing fetch?

...EAD...origin/master (three dots not two) to show a single diff. There normally isn't any need to undo a fetch, because doing a fetch only updates the remote branches and none of your branches. If you're not prepared to do a pull and merge in all the remote commits, you can use git cherry-pick to ac...
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Aborting a stash pop in Git

... any merging done by the git stash apply. The reverse merge requires that all current changes be pushed into the index: git add -u Then invert the merge-recursive that was done by git stash apply: git merge-recursive stash@{0}: -- $(git write-tree) stash@{0}^1 Now you will be left with just...
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Android Bitmap to Base64 String

... The problem with jeet's answer is that you load all bytes of the image into a byte array, which will likely crash the app in low-end devices. Instead, I would first write the image to a file and read it using Apache's Base64InputStream class. Then you can create the Base64...
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How to round a number to significant figures in Python

... round_sig = lambda f,p: float(('%.' + str(p) + 'e') % f) allows you to adjust the number of significant digits! – denizb Aug 6 '17 at 22:43 ...
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Is it better to use Enumerable.Empty() as opposed to new List() to initialize an IEnumerable

...uld be noticeable impact. Enumerable.Empty does not create an object per call thus putting less load on GC. If the code is in low-throughput location, then it boils down to aesthetic considerations though. share |...
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What is the LD_PRELOAD trick?

...ibrary (including the C runtime, libc.so). So to run ls with your special malloc() implementation, do this: $ LD_PRELOAD=/path/to/my/malloc.so /bin/ls share | improve this answer | ...
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How do I get the row count of a pandas DataFrame?

...[0].count()", "len(data.index)"], xlabel="data rows" ) EDIT: As @Dan Allen noted in the comments len(df.index) and df[0].count() are not interchangeable as count excludes NaNs, share | improve...
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Can Selenium Webdriver open browser windows silently in background?

...um RC? You can 'supposedly', pass in some parameters into Chrome, specifically: --no-startup-window Note that for some browsers, especially IE, it will hurt your tests to not have it run in focus. You can also hack about a bit with AutoIT, to hide the window once it's opened. ...
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What are the Dangers of Method Swizzling in Objective-C?

... I think this is a really great question, and it's a shame that rather than tackling the real question, most answers have skirted the issue and simply said not to use swizzling. Using method sizzling is like using sharp knives in the kitchen. So...