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What is the difference between pip and conda?

I know pip is a package manager for python packages. However, I saw the installation on IPython's website use conda to install IPython. ...
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Is file append atomic in UNIX?

...d to a file in UNIX from multiple processes? Is it possible to lose data (one process overwriting the other's changes)? Is it possible for data to get mangled? (For example, each process is appending one line per append to a log file, is it possible that two lines get mangled?) If the append is ...
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How to make phpstorm display line numbers by default?

...to make phpstorm display line numbers by default? Couldn't find that option. It's kind of annoying to turn them on manually for each page. ...
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How can I use “sizeof” in a preprocessor macro?

...g) is not what you expect, you can use following macro: #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) Usage: BUILD_BUG_ON( sizeof(someThing) != PAGE_SIZE ); This article explains in details why it works. 3. MS-specific On Microsoft C++ compiler you can use C_ASSER...
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Sublime Text 2 multiple line edit

...t+L Mac: Cmd ⌘+Shift+L You can then move the cursor to your heart's content and edit all lines at once. It's also called "Split into Lines" in the "Selection" menu. share | improve this answe...
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How to sleep for five seconds in a batch file/cmd [duplicate]

...pture the screen, but sometimes I want to capture the screen after five seconds, such as taking an image being displayed by the webcam. (Run the script and smile at the camera, for example.) ...
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Difference between map, applymap and apply methods in Pandas

Can you tell me when to use these vectorization methods with basic examples? 10 Answers ...
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How do you use bcrypt for hashing passwords in PHP?

... bcrypt is a hashing algorithm which is scalable with hardware (via a configurable number of rounds). Its slowness and multiple rounds ensures that an attacker must deploy massive funds and hardware to be able to crack your passwords. Add to that per-password salts (bcrypt REQUIRES salts) and yo...
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Location Manager Error : (KCLErrorDomain error 0)

... This error occurs if you have Scheme/Edit Scheme/Options/Allow Location Simulation checked but don't have a default location set. I'm sure there are other causes as well though. share | ...
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Remove local git tags that are no longer on the remote repository

... Good question. :) I don't have a complete answer... That said, you can get a list of remote tags via git ls-remote. To list the tags in the repository referenced by origin, you'd run: git ls-remote --tags origin That returns a li...