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How to get first element in a list of tuples?
...have no order.
Here I've created a flat list because generally that seems more useful than creating a list of 1 element tuples. However, you can easily create a list of 1 element tuples by just replacing seq[0] with (seq[0],).
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How do you create a read-only user in PostgreSQL?
... public TO xxx;
This only affects tables that have already been created. More powerfully, you can automatically have default roles assigned to new objects in future:
ALTER DEFAULT PRIVILEGES IN SCHEMA public
GRANT SELECT ON TABLES TO xxx;
Note that by default this will only affect objects (t...
What is a faster alternative to Python's http.server (or SimpleHTTPServer)?
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Chrome's remote debugging (USB debugging) not working for Samsung Galaxy S3 running android 4.3
...4.3 (from 4.1.2) I am unable to use Chrome's remote debugging for android (more details here ).
10 Answers
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Update Eclipse with Android development tools v. 23
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Please explain the exec() function and its family
...erations, the entire UNIX execution model can be constructed.
To add some more detail to the above:
The use of fork() and exec() exemplifies the spirit of UNIX in that it provides a very simple way to start new processes.
The fork() call makes a near duplicate of the current process, identical in a...
SHA512 vs. Blowfish and Bcrypt [closed]
...sed hashes; because of its memory requirements, optimizing bcrypt requires more specialized hardware like FPGA with some on-board RAM.
Note: bcrypt is an algorithm that uses Blowfish internally. It is not an encryption algorithm itself. It is used to irreversibly obscure passwords, just as hash f...
How do I add a submodule to a sub-directory?
...odule add <git@github ...> snipmate-snippets/snippets/
If you need more information about submodules (or git in general) ProGit is pretty useful.
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