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How to hide output of subprocess in Python 2.7

... use os.devnull if subprocess.DEVNULL is not available (<3.3), use check_call() instead of call() if you don't check its returned code, open files in binary mode for stdin/stdout/stderr, usage of os.system() should be discouraged, &> doesn't work for sh on Ubuntu an explicit >/dev/null ...
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Wget output document and headers to STDOUT

... -S option wasn't supported on my alpine linux container. I omitted it and all was good – Christian Bongiorno Jan 31 '17 at 17:37 1 ...
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Is there a JavaScript strcmp()?

... well as in the mozilla Javascript reference (developer.mozilla.org/en/Core_JavaScript_1.5_Reference/…) – newacct Jul 24 '09 at 19:37 ...
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How to use range-based for() loop with std::map?

... Each element of the container is a map<K, V>::value_type, which is a typedef for std::pair<const K, V>. Consequently, in C++17 or higher, you can write for (auto& [key, value]: myMap) { std::cout << key << " has value " << value << std:...
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Creating a blurring overlay view

...ize.height); reOrient = CGAffineTransformRotate(reOrient, M_PI); break; case UIImageOrientationLeft: case UIImageOrientationLeftMirrored: reOrient = CGAffineTransformTranslate(reOrient, theImage.size.width, 0); r...
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ImageView - have height match width?

...gt; See here Deprecated: According to this post by Android Developers, all you need to do now is to wrap whatever you want within a PercentRelativeLayout or a PercentFrameLayout, and then specify its ratios, like so <android.support.percent.PercentRelativeLayout android:layout_width="ma...
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Manifest merger failed : uses-sdk:minSdkVersion 14

Since downloading the latest SDK and installing Android Studio, my project fails to build. I get the following message: 28 ...
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What is the meaning of the prefix N in T-SQL statements and when should I use it?

...efix - I wasn't able to fix it for two days. My database collation is SQL_Latin1_General_CP1_CI_AS. It has a table with a column called MyCol1. It is an Nvarchar This query fails to match Exact Value That Exists. SELECT TOP 1 * FROM myTable1 WHERE MyCol1 = 'ESKİ' // 0 result using pref...
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Play an audio file using jQuery when a button is clicked

...ing(load when you need it) the sound is the best approach if its size is small. You can create the audio element dynamically, when its loaded you can start it with .play() and pause it with .pause(). Things we used We will use canplay event to detect our file is ready to be played. There is no ....
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What is the difference between Reader and InputStream?

... is designed for character streams. If the information you are reading is all text, then the Reader will take care of the character decoding for you and give you unicode characters from the raw input stream. If you are reading any type of text, this is the stream to use. You can wrap an InputStre...