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Why is it slower to iterate over a small string than a small list?

...kes sense as Python 3 changed comprehensions to have safer scoping. Well, now improve the benchmark (I'm just removing overhead that isn't iteration). This removes the building of the iterable by pre-assigning it: >>> python3 -m timeit -s 'iterable = "abc"' '[x for x in iterable...
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Amazon S3 direct file upload from client browser - private key disclosure

...in the loop. (NOTE: Once you give your code to a client, it's "their" code now.) Locking down CORS is not going to help: People can easily write a non-web-based tool (or a web-based proxy) that adds the correct CORS header to abuse your system. The big problem is that you can't differentiate betwe...
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getActionBar() returns null

...ionBar() instead of getActionBar() * Update: The class ActionBarActivity now is deprecated: import android.support.v7.app.ActionBarActivity; I recommend to use: import android.support.v7.app.AppCompatActivity share ...
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How can I remove an SSH key?

...p. If necessary you can also open seahorse and delete the keys from there. Now you should be able to do git push without a problem. Another workaround: What you really want to do is to turn off gpg-keyring-daemon altogether. Go to System --> Preferences --> Startup Applications, and unselec...
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How to fully clean bin and obj folders within Visual Studio?

... sorry just now saw your comment. Specifying AfterTargets="Clean" will hook the target to the internal clean target for VisualStudio. However this simple target does not provide any feedbaco to the console so it will not do much other ...
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How to create an array of object literals in a loop?

...mns[key] = { sortable: true, resizeable: true }; } // Now you can access column info like this. columns['notes'].resizeable; The above approach should be much faster and idiomatic than searching the entire object array for a key for each access. ...
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What is the difference between '/' and '//' when used for division?

...--> 2 Python 2.7 print (4/2) ----> 2.0 Python 3.5 Now if you want to have (in python 2.7) same output as in python 3.5, you can do the following: Python 2.7.10 from __future__ import division print (2/3) ----> 0.6666666666666666 #Python 2.7 print (4/2) ----> 2....
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Initializing multiple variables to the same value in Java

...declaring multiple variables of the same type and of the same value. Right now I have: 7 Answers ...
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Piping command output to tee but also save exit code of command [duplicate]

...han a single pipe then you'll need to check the status of each command to know where it failed. – Joshua Olson Aug 23 '13 at 2:11 ...
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How to get a Color from hexadecimal Color String

... Anyone knows how to parse #000 values ? – Alex Semeniuk Jan 9 '15 at 10:14 7 ...