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How to read a single character from the user?
...cter from the user input? For instance, they press one key at the terminal and it is returned (sort of like getch() ). I know there's a function in Windows for it, but I'd like something that is cross-platform.
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How to change the background color of the options menu?
...arent="Theme.AppCompat.Light.DarkActionBar">
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<item name="android:itemBackground">@color/overflow_background</item>
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</style>
Tested from API 4.2 to 5.0.
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Recursive sub folder search and return files in a list python
...m working on a script to recursively go through subfolders in a mainfolder and build a list off a certain file type. I am having an issue with the script. Its currently set as follows
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How do I check whether a file exists without exceptions?
...open_it(), it's safer to use a try around the attempt to open it. Checking and then opening risks the file being deleted or moved or something between when you check and when you try to open it.
If you're not planning to open the file immediately, you can use os.path.isfile
Return True if path ...
What do the makefile symbols $@ and $< mean?
What do the $@ and $&lt; do exactly?
6 Answers
6
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Allowed characters in filename [closed]
...bitten by that once when I shortened an include file from const.h to con.h and spent half an hour figuring out why the compiler hung.
Turns out DOS ignored extensions for devices so that con.h was exactly the same as con, the input console (meaning, of course, the compiler was waiting for me to typ...
Rendering HTML inside textarea
... rather than a Boolean attribute (there's an inherit state as well as true and false) , and I think that means that specifying a value is mandatory, although I can't find a definitive bit of the spec to confirm this. MDN seems to agree though.
– Tim Down
Jul 9 ...
HSL to RGB color conversion
...(which he attributes to a now defunct mjijackson.com, but is archived here and the original author has a gist - thanks to user2441511).
The code is re-posted below:
HSL to RGB:
/**
* Converts an HSL color value to RGB. Conversion formula
* adapted from http://en.wikipedia.org/wiki/HSL_color_sp...
Run php script as daemon process
I need to run a php script as daemon process (wait for instructions and do stuff). cron job will not do it for me because actions need to be taken as soon as instruction arrives. I know PHP is not really the best option for daemon processes due to memory management issues, but due to various reasons...
An example of how to use getopts in bash
...t;0 (for the sake of simplicity I didn't differentiate between those cases and nobody forces you to print the usage text in the latter case). I have seen programs which always return != 0, though, even on -h/--help. Maybe I should update the snippet in case people use this as boilerplate (I hope not...