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Generating a PNG with matplotlib when DISPLAY is undefined
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The main problem is that (on your system) matplotlib chooses an x-using backend by default. I just had the same problem on one of my servers. The solution for me was to add the following code in a place that gets read before any other pylab/matplotlib/pyplot import:
import matpl...
Which is the best Linux C/C++ debugger (or front-end to gdb) to help teaching programming? [closed]
...it for students doing their first C++ steps.
– PypeBros
Jun 29 '13 at 8:43
1
DDD is great for ins...
Focusable EditText inside ListView
...ocusable child, I want that child to take focus instead of indicating the position with the selector.
12 Answers
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Using the rJava package on Win7 64 bit with R
...o get up and running with R + rJava on Windows 7 64bit. There are several possibilities, but most have fatal flaws. Here is what worked for me:
Add jvm.dll to your PATH
rJava, the R<->Java bridge, will need jvm.dll, but R will have trouble finding that DLL. It resides in a folder like
C:\Pr...
Add a new element to an array without specifying the index in Bash
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This works just fine with bash 3.2.48 (OS X 10.8.2). Note that ARRAY is just a placeholder for an actual variable name. Even if your array indices are not sequential, appending with += will simply assign to the highest index + 1.
– mklement0
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Is there anything like inotify on Windows?
With the Linux OS, there is the ionotify subsystem which notifies an application of changes to the filesystem.
8 Answers
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Preventing scroll bars from being hidden for MacOS trackpad users in WebKit/Blink
WebKit/Blink's (Safari/Chrome) default behaviour on MacOS since 10.7 (Mac OS X Lion) is to hide scroll bars from trackpad users when they're not in use. This can be confusing ; the scroll bar is often the only visual cue that an element is scrollable.
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Display the current time and date in an Android application
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android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.N (24).
– kangear
Feb 10 '17 at 7:57
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Exif manipulation library for python [closed]
... the record: pyexiv2 seems to be the best-maintained of them all, and the most complete (including writing EXIF tags back to the file).
– rbp
Oct 25 '10 at 22:15
1
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Super slow lag/delay on initial keyboard animation of UITextField
...otic hacks to get around this problem, try this: stop the debug session, close the app from multitasking, unplug your device from the computer and run the app normally by tapping its icon. I have seen at least two cases in which the delay only occurs while the device is plugged in.
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