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Rename specific column(s) in pandas

...x 1 x x x 2 x x x 3 x x x 4 x x x With 0.21+, you can now specify an axis parameter with rename: df.rename({'gdp':'log(gdp)'}, axis=1) # df.rename({'gdp':'log(gdp)'}, axis='columns') y log(gdp) cap 0 x x x 1 x x x 2 x x x 3 x x x 4...
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Gson: Directly convert String to JsonObject (no POJO)

...tempting JSON tree manipulation in GSON, but I have a case where I do not know or have a POJO to convert a string into, prior to converting to JsonObject . Is there a way to go directly from a String to JsonObject ? ...
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What exactly does git's “rebase --preserve-merges” do (and why?)

...we'll take its (their) descendants and replay them on top of new parents Now we can define C, the set of commits to replay. In particular, it's those commits: 1) reachable from B but not A (as in a normal rebase), and ALSO 2) descendants of the merge base(s) If we ignore cherry-picks and...
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Getting rid of all the rounded corners in Twitter Bootstrap

...r-radius: 0 !important; } In bootstrap 3 if you are compiling it you can now set radius in the variables.less file: @border-radius-base: 0px; @border-radius-large: 0px; @border-radius-small: 0px; In bootstrap 4 if you are compiling it you can disable radius alltogether in the...
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How to change field name in Django REST Framework

... Now this exception is throwing AttributeError at /ViewName/ 'module' object has no attribute 'SerializerMethodField' – Shoaib Ijaz Apr 9 '14 at 9:52 ...
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How do I scroll the UIScrollView when the keyboard appears?

... upon themselves to scroll the active text field above the keyboard for us now. – paulvs May 14 '17 at 15:29 2 ...
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Which is faster: while(1) or while(2)?

...human to read! If I see while(1) in an unfamiliar codebase, I immediately know what the author intended, and my eyeballs can continue to the next line. If I see while(2), I'll probably halt in my tracks and try to figure out why the author didn't write while(1). Did the author's finger slip on the ...
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Python memory leaks [closed]

...leaks for long running processes, e.g. in production environments, you can now use stackimpact. It uses tracemalloc underneath. More info in this post. share | improve this answer | ...
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Looking to understand the iOS UIViewController lifecycle

...view was dismissed, covered or otherwise hidden. Default does nothing Now as per Apple when you are implementing this methods you should remember to call super implementation of that specific method. If you subclass UIViewController, you must call the super implementation of this method, ev...
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How to detect user inactivity in Android

...out to be 5 mins. Does some operations on the app. (all in foreground) Now User bring Myapp to background and starts some other app. ----> Count down timer starts and logs out user after 5 mins OR user turns the screen OFF. ----> Count down timer starts and logs out user after 5 mins ...