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What is the purpose of Flask's context stacks?

... up models db.create_all() In this case, the Flask-SQLAlchemy extension knows about the app application, but during create_all() it will throw an error complaining about there not being an application context. This error is justified; you never told Flask what application it should be dealing with...
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Difference between modes a, a+, w, w+, and r+ in built-in open function?

... I noticed that every now and then I need to Google fopen all over again, just to build a mental image of what the primary differences between the modes are. So, I thought a diagram will be faster to read next time. Maybe someone else will find th...
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Chrome desktop notification example [closed]

...sed to work in Chrome, and to learn the story of rich HTML notifications. Now the latest standard is at https://notifications.spec.whatwg.org/. As to why there are two different calls to the same effect, depending on whether you're in a service worker or not - see this ticket I filed while I worke...
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How to shrink the .git folder

...ant to add the "-f" flag (which is the "drop all old deltas", since you now are actually trying to make sure that this one actually finds good candidates. source: http://gcc.gnu.org/ml/gcc/2007-12/msg00165.html Will this get rid of binary data that is orphaned in my repo? "git repack" will ...
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Mac SQLite editor [closed]

...es he is charging too little for it. UPDATE: Since December 2008, Base is now up to version 2.1, it has become an excellent product. I don't remember what it used to cost, but I paid for the 1.x to 2.x upgrade. Still highly recommended. ANOTHER UPDATE: Base is available on the Mac App Store, you m...
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Is there a way to use PhantomJS in Python?

... PhantomJS recently dropped Python support altogether. However, PhantomJS now embeds Ghost Driver. A new project has since stepped up to fill the void: ghost.py. You probably want to use that instead: from ghost import Ghost ghost = Ghost() with ghost.start() as session: page, extra_resource...
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SQL Server Script to create a new user

...dminName] EXEC sp_addrolemember N'db_owner', N'NewAdminName' END; GO Now, Logins are a bit more fluid than I make it seem above. For example, a Login account is automatically created (in most SQL Server installations) for the Windows Administrator account when the database is installed. In m...
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Partial Commits with Subversion

... Tortoise SVN 1.8 now supports this with it's "Restore after commit" feature. This allow you to make edits to a file, with all of the edits being undone after the commit Per the documentation: To commit only the parts of the file that rel...
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Can you add new statements to Python's syntax?

...pr test, stmt* body, stmt* orelse) | Until(expr test, stmt* body) If you now run make, notice that before compiling a bunch of files, Parser/asdl_c.py is run to generate C code from the AST definition file. This (like Grammar/Grammar) is another example of the Python source-code using a mini-langu...
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How to include view/partial specific styling in AngularJS

... I know this question is old now, but after doing a ton of research on various solutions to this problem, I think I may have come up with a better solution. UPDATE 1: Since posting this answer, I have added all of this code to a...