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What do the python file extensions, .pyc .pyd .pyo stand for?

...c file that contains the bytecode to make importing it again later easier (and faster). .pyo: This was a file format used before Python 3.5 for *.pyc files that were created with optimizations (-O) flag. (see the note below) .pyd: This is basically a windows dll file. http://docs.python.org/faq/win...
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Git: How to return from 'detached HEAD' state

...flog to find the hashes of previously checked out commits. A shortcut command to get to your last checked out branch (not sure if this work correctly with detached HEAD and intermediate commits though) is git checkout - sha...
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How to assign the output of a command to a Makefile variable

... shell is not a standard Make builtin command. This is a GNU Make builtin. – Dereckson Feb 18 '14 at 20:17 14 ...
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ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'db'

... No, you should run mysql -u root -p in bash, not at the MySQL command-line. If you are in mysql, you can exit by typing exit. share | improve this answer | follow ...
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How do I extract the contents of an rpm?

I have an rpm and I want to treat it like a tarball. I want to extract the contents into a directory so I can inspect the contents. I am familiar with the querying commands of an uninstalled package. I do not simply want a list of the contents of the rpm. i.e. ...
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How do I clear this setInterval inside a function?

Normally, I’d set the interval to a variable and then clear it like var the_int = setInterval(); clearInterval(the_int); but for my code to work I put it in an anonymous function: ...
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Does C++ support 'finally' blocks? (And what's this 'RAII' I keep hearing about?)

...lock() { m_.release(); } }; // A class which uses 'mutex' and 'lock' objects class foo { mutex mutex_; // mutex for locking 'foo' object public: void bar() { lock scopeLock(mutex_); // lock object. foobar(); // an operation which may throw an exception ...
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Is it possible to set transparency in CSS3 box-shadow?

...ose rgba() would work here. After all, browser support for both box-shadow and rgba() is roughly the same. /* 50% black box shadow */ box-shadow: 10px 10px 10px rgba(0, 0, 0, 0.5); div { width: 200px; height: 50px; line-height: 50px; text-align: center; color: white; ...
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Count the number of occurrences of a string in a VARCHAR field?

...wesome, just what I needed! But note, that LENGTH() is not multi-byte safe and you might run into strange errors. Use CHAR_LENGTH() instead:) – nico gawenda Apr 29 '13 at 23:28 1 ...
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VIM + Syntastic: how to disable the checker?

...ile by running :SyntasticCheck instead. For more, see :help syntastic-commands On another note: if Syntastic is slow for you consider trying ale as an alternative. Unlike Syntastic it runs asynchronously, so even if it's slow it shouldn't hinder you. ...